Do you want to send a PR?

The run.sh script doesn’t use the maven wrapper (it should). So you are picking up an older version of mvn from your local path.

Hi,

I tried to deploy the function-aws sample to my AWS account as a native Lambda function, but couldn't make it work correctly. So that's what I tried to do :

• I cloned the master branch of this repository
• I installed GraalVM 20.2.0 java 11, installed native-image and maven 3.6.3
• I followed the README to native compile the function-aws project with my computer running on Ubuntu 20.04 64bit
• I created a new Lambda function in my AWS account, selecting "Provide your own bootstrap on Amazon Linux 2" option
• I uploaded the native zip as the function code and changed the handler parameter to foobar as mentionned in the README

But when testing the lambda, I always get the same cryptic stacktrace :

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|   timestamp   |                                                                                        message                                                                                         |
|---------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 1600327508489 | Util_sun_misc_Signal.ensureInitialized: CSunMiscSignal.create() failed.  errno: 38  Function not implemented                                                                           |
| 1600327508489 | Fatal error: Util_sun_misc_Signal.ensureInitialized: CSunMiscSignal.open() failed.                                                                                                     |
| 1600327508491 | JavaFrameAnchor dump:                                                                                                                                                                  |
| 1600327508491 | No anchors                                                                                                                                                                             |
| 1600327508491 | TopFrame info:                                                                                                                                                                         |
| 1600327508496 | TotalFrameSize in CodeInfoTable 32                                                                                                                                                     |
| 1600327508496 | VMThreads info:                                                                                                                                                                        |
| 1600327508496 | VMThread 00005647bb117270  STATUS_IN_JAVA (safepoints disabled)  java.lang.Thread@0x5647ba4c59b0                                                                                       |
| 1600327508496 | VM Thread State for current thread 00005647bb117270:                                                                                                                                   |
| 1600327508496 | 0 (8 bytes): com.oracle.svm.jni.JNIThreadLocalEnvironment.jniFunctions = (bytes)                                                                                                       |
| 1600327508496 | 00005647bb117270: 00005647ba2c43d8                                                                                                                                                     |
| 1600327508496 | 8 (32 bytes): com.oracle.svm.core.genscavenge.ThreadLocalAllocation.regularTLAB = (bytes)                                                                                              |
| 1600327508496 | 00005647bb117278: 00007f5fd8b00000 00007f5fd8c00000                                                                                                                                    |
| 1600327508496 | 00005647bb117288: 00007f5fd8b020c0 0000000000000000                                                                                                                                    |
| 1600327508496 | 40 (8 bytes): com.oracle.svm.core.heap.NoAllocationVerifier.openVerifiers = (Object) null                                                                                              |
| 1600327508496 | 48 (8 bytes): com.oracle.svm.core.jdk.IdentityHashCodeSupport.hashCodeGeneratorTL = (Object) null                                                                                      |
| 1600327508496 | 56 (8 bytes): com.oracle.svm.core.snippets.ExceptionUnwind.currentException = (Object) null                                                                                            |
| 1600327508496 | 64 (8 bytes): com.oracle.svm.core.thread.JavaThreads.currentThread = (Object) java.lang.Thread  00005647ba4c59b0                                                                       |
| 1600327508496 | 72 (8 bytes): com.oracle.svm.core.thread.ThreadingSupportImpl.activeTimer = (Object) null                                                                                              |
| 1600327508496 | 80 (8 bytes): com.oracle.svm.jni.JNIObjectHandles.handles = (Object) com.oracle.svm.core.handles.ThreadLocalHandles  00007f5fd8b010c0                                                  |
| 1600327508496 | 88 (8 bytes): com.oracle.svm.jni.JNIThreadLocalPendingException.pendingException = (Object) null                                                                                       |
| 1600327508496 | 96 (8 bytes): com.oracle.svm.jni.JNIThreadLocalPinnedObjects.pinnedObjectsListHead = (Object) null                                                                                     |
| 1600327508496 | 104 (8 bytes): com.oracle.svm.jni.JNIThreadOwnedMonitors.ownedMonitors = (Object) null                                                                                                 |
| 1600327508496 | 112 (8 bytes): com.oracle.svm.core.genscavenge.ThreadLocalAllocation.freeList = (Word) 0  0000000000000000                                                                             |
| 1600327508496 | 120 (8 bytes): com.oracle.svm.core.graal.snippets.StackOverflowCheckImpl.stackBoundaryTL = (Word) 1  0000000000000001                                                                  |
| 1600327508496 | 128 (8 bytes): com.oracle.svm.core.stack.JavaFrameAnchors.lastAnchor = (Word) 0  0000000000000000                                                                                      |
| 1600327508496 | 136 (8 bytes): com.oracle.svm.core.thread.VMThreads.IsolateTL = (Word) 94866043924480  00005647b8d97000                                                                                |
| 1600327508496 | 144 (8 bytes): com.oracle.svm.core.thread.VMThreads.OSThreadHandleTL = (Word) 140049648089984  00007f5fd9867b80                                                                        |
| 1600327508496 | 152 (8 bytes): com.oracle.svm.core.thread.VMThreads.OSThreadIdTL = (Word) 140049648089984  00007f5fd9867b80                                                                            |
| 1600327508496 | 160 (8 bytes): com.oracle.svm.core.thread.VMThreads.nextTL = (Word) 0  0000000000000000                                                                                                |
| 1600327508496 | 168 (4 bytes): com.oracle.svm.core.graal.snippets.StackOverflowCheckImpl.yellowZoneStateTL = (int) -16843010  fefefefe                                                                 |
| 1600327508496 | 172 (4 bytes): com.oracle.svm.core.snippets.ImplicitExceptions.implicitExceptionsAreFatal = (int) 0  00000000                                                                          |
| 1600327508496 | 176 (4 bytes): com.oracle.svm.core.thread.Safepoint.safepointRequested = (int) 2147473685  7fffd915                                                                                    |
| 1600327508496 | 180 (4 bytes): com.oracle.svm.core.thread.ThreadingSupportImpl.currentPauseDepth = (int) 0  00000000                                                                                   |
| 1600327508496 | 184 (4 bytes): com.oracle.svm.core.thread.VMThreads$ActionOnTransitionToJavaSupport.actionTL = (int) 0  00000000                                                                       |
| 1600327508496 | 188 (4 bytes): com.oracle.svm.core.thread.VMThreads$StatusSupport.safepointsDisabledTL = (int) 1  00000001                                                                             |
| 1600327508496 | 192 (4 bytes): com.oracle.svm.core.thread.VMThreads$StatusSupport.statusTL = (int) 1  00000001                                                                                         |
| 1600327508496 | VMOperation dump:                                                                                                                                                                      |
| 1600327508496 | No VMOperation in progress                                                                                                                                                             |
| 1600327508496 | Dump Counters:                                                                                                                                                                         |
| 1600327508496 | Raw Stacktrace:                                                                                                                                                                        |
| 1600327508496 | 00007ffc8628ea80: 00007ffc8628e968 00005647b9b93798                                                                                                                                    |
| 1600327508496 | 00007ffc8628ea90: 00005647b8d97000 00005647b72b1c4a                                                                                                                                    |
| 1600327508496 | 00007ffc8628eaa0: 3020303030303030 2020302030303a30                                                                                                                                    |
| 1600327508496 | 00007ffc8628eab0: 00005647ba4c6660 00005647ba4c65f8                                                                                                                                    |
| 1600327508496 | 00007ffc8628eac0: 00000000000000ff 0000002600000000                                                                                                                                    |
| 1600327508496 | 00007ffc8628ead0: 00005647b72b1bc3 00007ffc8628eaa0                                                                                                                                    |
| 1600327508496 | 00007ffc8628eae0: 0000000000000000 00005647b72b285e                                                                                                                                    |
| 1600327508496 | 00007ffc8628eaf0: 2c2c2c2c2c2c2c2c 2c2c2c2c2c2c2c2c                                                                                                                                    |
| 1600327508496 | Stacktrace Stage 0:                                                                                                                                                                    |
| 1600327508496 | SP 00007ffc8628ea80 IP 00005647b72c9526  FrameSize 32                                                                                                                                  |
| 1600327508496 | SP 00007ffc8628eaa0 IP 00005647b72b1c4a  FrameSize 80                                                                                                                                  |
| 1600327508496 | SP 00007ffc8628eaf0 IP 00005647b72b285e  FrameSize 32                                                                                                                                  |
| 1600327508500 | SP 00007ffc8628eb10 IP 00005647b80fe05c  FrameSize 64                                                                                                                                  |
| 1600327508504 | SP 00007ffc8628eb50 IP 00005647b7c8bc0c  FrameSize 48                                                                                                                                  |
| 1600327508504 | SP 00007ffc8628eb80 IP 00005647b72602c5  FrameSize 16                                                                                                                                  |
| 1600327508504 | SP 00007ffc8628eb90 IP 00005647b729a915  FrameSize 32                                                                                                                                  |
| 1600327508504 | SP 00007ffc8628ebb0 IP 00005647b72796bf  FrameSize 112                                                                                                                                 |
| 1600327508504 | Stacktrace Stage 1:                                                                                                                                                                    |
| 1600327508505 | SP 00007ffc8628ea80 IP 00005647b72c9526  com.oracle.svm.core.code.CodeInfo@0x5647ba49fbd8 name = image code                                                                            |
| 1600327508505 | SP 00007ffc8628eaa0 IP 00005647b72b1c4a  com.oracle.svm.core.code.CodeInfo@0x5647ba49fbd8 name = image code                                                                            |
| 1600327508505 | SP 00007ffc8628eaf0 IP 00005647b72b285e  com.oracle.svm.core.code.CodeInfo@0x5647ba49fbd8 name = image code                                                                            |
| 1600327508505 | SP 00007ffc8628eb10 IP 00005647b80fe05c  com.oracle.svm.core.code.CodeInfo@0x5647ba49fbd8 name = image code                                                                            |
| 1600327508506 | SP 00007ffc8628eb50 IP 00005647b7c8bc0c  com.oracle.svm.core.code.CodeInfo@0x5647ba49fbd8 name = image code                                                                            |
| 1600327508506 | SP 00007ffc8628eb80 IP 00005647b72602c5  com.oracle.svm.core.code.CodeInfo@0x5647ba49fbd8 name = image code                                                                            |
| 1600327508506 | SP 00007ffc8628eb90 IP 00005647b729a915  com.oracle.svm.core.code.CodeInfo@0x5647ba49fbd8 name = image code                                                                            |
| 1600327508506 | SP 00007ffc8628ebb0 IP 00005647b72796bf  com.oracle.svm.core.code.CodeInfo@0x5647ba49fbd8 name = image code                                                                            |
| 1600327508506 | Stacktrace Stage 2:                                                                                                                                                                    |
| 1600327508512 | SP 00007ffc8628ea80 IP 00005647b72c9526  [image code] com.oracle.svm.core.jdk.VMErrorSubstitutions.shutdown(VMErrorSubstitutions.java:96)                                              |
| 1600327508512 | SP 00007ffc8628ea80 IP 00005647b72c9526  [image code] com.oracle.svm.core.util.VMError.shouldNotReachHere(VMError.java:75)                                                             |
| 1600327508512 | SP 00007ffc8628eaa0 IP 00005647b72b1c4a  [image code] com.oracle.svm.core.util.VMError.shouldNotReachHere(VMError.java:59)                                                             |
| 1600327508512 | SP 00007ffc8628eaa0 IP 00005647b72b1c4a  [image code] com.oracle.svm.core.posix.Util_jdk_internal_misc_Signal.ensureInitialized(SunMiscSubstitutions.java:177)                         |
| 1600327508514 | SP 00007ffc8628eaf0 IP 00005647b72b285e  [image code] com.oracle.svm.core.posix.Util_jdk_internal_misc_Signal.numberFromName(SunMiscSubstitutions.java:225)                            |
| 1600327508522 | SP 00007ffc8628eb10 IP 00005647b80fe05c  [image code] jdk.internal.misc.Signal.findSignal0(Signal.java:83)                                                                             |
| 1600327508522 | SP 00007ffc8628eb10 IP 00005647b80fe05c  [image code] jdk.internal.misc.Signal.<init>(Signal.java:146)                                                                                 |
| 1600327508526 | SP 00007ffc8628eb50 IP 00005647b7c8bc0c  [image code] java.lang.Terminator.setup(Terminator.java:59)                                                                                   |
| 1600327508529 | SP 00007ffc8628eb80 IP 00005647b72602c5  [image code] com.oracle.svm.core.SubstrateExitHandlerFeature$$Lambda$6ac97f0688283293e0c2a0c25ff26531a4f1c7a1.run(Unknown Source)             |
| 1600327508531 | SP 00007ffc8628eb90 IP 00005647b729a915  [image code] com.oracle.svm.core.jdk.RuntimeSupport.executeHooks(RuntimeSupport.java:125)                                                     |
| 1600327508531 | SP 00007ffc8628ebb0 IP 00005647b72796bf  [image code] com.oracle.svm.core.jdk.RuntimeSupport.executeStartupHooks(RuntimeSupport.java:75)                                               |
| 1600327508531 | SP 00007ffc8628ebb0 IP 00005647b72796bf  [image code] com.oracle.svm.core.JavaMainWrapper.runCore(JavaMainWrapper.java:141)                                                            |
| 1600327508531 | SP 00007ffc8628ebb0 IP 00005647b72796bf  [image code] com.oracle.svm.core.JavaMainWrapper.run(JavaMainWrapper.java:184)                                                                |
| 1600327508531 | SP 00007ffc8628ebb0 IP 00005647b72796bf  [image code] com.oracle.svm.core.code.IsolateEnterStub.JavaMainWrapper_run_5087f5482cc9a6abc971913ece43acb471d2631b(IsolateEnterStub.java:0)  |
| 1600327508531 | [Native image heap boundaries:                                                                                                                                                         |
| 1600327508531 | ReadOnly Primitives: 0x5647b8d97008 .. 0x5647b9b797e8                                                                                                                                  |
| 1600327508531 | ReadOnly References: 0x5647b9b79820 .. 0x5647b9f322e0                                                                                                                                  |
| 1600327508531 | ReadOnly Relocatables: 0x5647b9f81000 .. 0x5647ba39fe80                                                                                                                                |
| 1600327508531 | Writable Primitives: 0x5647ba3a0000 .. 0x5647ba4b55d0                                                                                                                                  |
| 1600327508531 | Writable References: 0x5647ba4b55e8 .. 0x5647bac1e7b8                                                                                                                                  |
| 1600327508531 | Writable Huge: 0x0 .. 0x0                                                                                                                                                              |
| 1600327508531 | ReadOnly Huge: 0x0 .. 0x0]                                                                                                                                                             |
| 1600327508531 | [Heap:                                                                                                                                                                                 |
| 1600327508531 | [Young generation:                                                                                                                                                                     |
| 1600327508531 | [Eden:                                                                                                                                                                                 |
| 1600327508531 | [edenSpace:                                                                                                                                                                            |
| 1600327508531 | aligned: 0/0 unaligned: 0/0]]                                                                                                                                                          |
| 1600327508531 | [Survivors:                                                                                                                                                                            |
| 1600327508531 | ]]                                                                                                                                                                                     |
| 1600327508531 | [Old generation:                                                                                                                                                                       |
| 1600327508531 | [oldFromSpace:                                                                                                                                                                         |
| 1600327508531 | aligned: 0/0 unaligned: 0/0]                                                                                                                                                           |
| 1600327508531 | [oldToSpace:                                                                                                                                                                           |
| 1600327508531 | aligned: 0/0 unaligned: 0/0]                                                                                                                                                           |
| 1600327508531 | ]                                                                                                                                                                                      |
| 1600327508531 | [Unused:                                                                                                                                                                               |
| 1600327508531 | aligned: 0/0]]                                                                                                                                                                         |
| 1600327508531 | Fatal error: Util_sun_misc_Signal.ensureInitialized: CSunMiscSignal.open() failed.                                                                                                     |
| 1600327508601 | START RequestId: 2920ad08-0136-470b-ac5b-df4a07886bce Version: $LATEST                                                                                                                 |
| 1600327508683 | Util_sun_misc_Signal.ensureInitialized: CSunMiscSignal.create() failed.  errno: 38  Function not implemented                                                                           |
| 1600327508683 | Fatal error: Util_sun_misc_Signal.ensureInitialized: CSunMiscSignal.open() failed.                                                                                                     |
| 1600327508683 | JavaFrameAnchor dump:                                                                                                                                                                  |
| 1600327508683 | No anchors                                                                                                                                                                             |
| 1600327508683 | TopFrame info:                                                                                                                                                                         |
| 1600327508683 | TotalFrameSize in CodeInfoTable 32                                                                                                                                                     |
| 1600327508683 | VMThreads info:                                                                                                                                                                        |
| 1600327508683 | VMThread 0000563233dfd270  STATUS_IN_JAVA (safepoints disabled)  java.lang.Thread@0x56323191f9b0                                                                                       |
| 1600327508683 | VM Thread State for current thread 0000563233dfd270:                                                                                                                                   |
| 1600327508683 | 0 (8 bytes): com.oracle.svm.jni.JNIThreadLocalEnvironment.jniFunctions = (bytes)                                                                                                       |
| 1600327508683 | 0000563233dfd270: 000056323171e3d8                                                                                                                                                     |
| 1600327508683 | 8 (32 bytes): com.oracle.svm.core.genscavenge.ThreadLocalAllocation.regularTLAB = (bytes)                                                                                              |
| 1600327508683 | 0000563233dfd278: 00007f76e0b00000 00007f76e0c00000                                                                                                                                    |
| 1600327508683 | 0000563233dfd288: 00007f76e0b020c0 0000000000000000                                                                                                                                    |
| 1600327508683 | 40 (8 bytes): com.oracle.svm.core.heap.NoAllocationVerifier.openVerifiers = (Object) null                                                                                              |
| 1600327508683 | 48 (8 bytes): com.oracle.svm.core.jdk.IdentityHashCodeSupport.hashCodeGeneratorTL = (Object) null                                                                                      |
| 1600327508683 | 56 (8 bytes): com.oracle.svm.core.snippets.ExceptionUnwind.currentException = (Object) null                                                                                            |
| 1600327508683 | 64 (8 bytes): com.oracle.svm.core.thread.JavaThreads.currentThread = (Object) java.lang.Thread  000056323191f9b0                                                                       |
| 1600327508683 | 72 (8 bytes): com.oracle.svm.core.thread.ThreadingSupportImpl.activeTimer = (Object) null                                                                                              |
| 1600327508683 | 80 (8 bytes): com.oracle.svm.jni.JNIObjectHandles.handles = (Object) com.oracle.svm.core.handles.ThreadLocalHandles  00007f76e0b010c0                                                  |
| 1600327508683 | 88 (8 bytes): com.oracle.svm.jni.JNIThreadLocalPendingException.pendingException = (Object) null                                                                                       |
| 1600327508683 | 96 (8 bytes): com.oracle.svm.jni.JNIThreadLocalPinnedObjects.pinnedObjectsListHead = (Object) null                                                                                     |
| 1600327508683 | 104 (8 bytes): com.oracle.svm.jni.JNIThreadOwnedMonitors.ownedMonitors = (Object) null                                                                                                 |
| 1600327508683 | 112 (8 bytes): com.oracle.svm.core.genscavenge.ThreadLocalAllocation.freeList = (Word) 0  0000000000000000                                                                             |
| 1600327508683 | 120 (8 bytes): com.oracle.svm.core.graal.snippets.StackOverflowCheckImpl.stackBoundaryTL = (Word) 1  0000000000000001                                                                  |
| 1600327508683 | 128 (8 bytes): com.oracle.svm.core.stack.JavaFrameAnchors.lastAnchor = (Word) 0  0000000000000000                                                                                      |
| 1600327508683 | 136 (8 bytes): com.oracle.svm.core.thread.VMThreads.IsolateTL = (Word) 94773555695616  00005632301f1000                                                                                |
| 1600327508683 | 144 (8 bytes): com.oracle.svm.core.thread.VMThreads.OSThreadHandleTL = (Word) 140148566223744  00007f76e1816b80                                                                        |
| 1600327508683 | 152 (8 bytes): com.oracle.svm.core.thread.VMThreads.OSThreadIdTL = (Word) 140148566223744  00007f76e1816b80                                                                            |
| 1600327508683 | 160 (8 bytes): com.oracle.svm.core.thread.VMThreads.nextTL = (Word) 0  0000000000000000                                                                                                |
| 1600327508683 | 168 (4 bytes): com.oracle.svm.core.graal.snippets.StackOverflowCheckImpl.yellowZoneStateTL = (int) -16843010  fefefefe                                                                 |
| 1600327508683 | 172 (4 bytes): com.oracle.svm.core.snippets.ImplicitExceptions.implicitExceptionsAreFatal = (int) 0  00000000                                                                          |
| 1600327508683 | 176 (4 bytes): com.oracle.svm.core.thread.Safepoint.safepointRequested = (int) 2147473685  7fffd915                                                                                    |
| 1600327508683 | 180 (4 bytes): com.oracle.svm.core.thread.ThreadingSupportImpl.currentPauseDepth = (int) 0  00000000                                                                                   |
| 1600327508683 | 184 (4 bytes): com.oracle.svm.core.thread.VMThreads$ActionOnTransitionToJavaSupport.actionTL = (int) 0  00000000                                                                       |
| 1600327508683 | 188 (4 bytes): com.oracle.svm.core.thread.VMThreads$StatusSupport.safepointsDisabledTL = (int) 1  00000001                                                                             |
| 1600327508683 | 192 (4 bytes): com.oracle.svm.core.thread.VMThreads$StatusSupport.statusTL = (int) 1  00000001                                                                                         |
| 1600327508683 | VMOperation dump:                                                                                                                                                                      |
| 1600327508683 | No VMOperation in progress                                                                                                                                                             |
| 1600327508683 | Dump Counters:                                                                                                                                                                         |
| 1600327508683 | Raw Stacktrace:                                                                                                                                                                        |
| 1600327508683 | 00007ffc18bcad20: 00007ffc18bcac08 0000563230fed798                                                                                                                                    |
| 1600327508683 | 00007ffc18bcad30: 00005632301f1000 000056322e70bc4a                                                                                                                                    |
| 1600327508683 | 00007ffc18bcad40: 3020303030303030 2020302030303a30                                                                                                                                    |
| 1600327508683 | 00007ffc18bcad50: 0000563231920660 00005632319205f8                                                                                                                                    |
| 1600327508683 | 00007ffc18bcad60: 00000000000000ff 0000002600000000                                                                                                                                    |
| 1600327508683 | 00007ffc18bcad70: 000056322e70bbc3 00007ffc18bcad40                                                                                                                                    |
| 1600327508683 | 00007ffc18bcad80: 0000000000000000 000056322e70c85e                                                                                                                                    |
| 1600327508683 | 00007ffc18bcad90: 2c2c2c2c2c2c2c2c 2c2c2c2c2c2c2c2c                                                                                                                                    |
| 1600327508683 | Stacktrace Stage 0:                                                                                                                                                                    |
| 1600327508683 | SP 00007ffc18bcad20 IP 000056322e723526  FrameSize 32                                                                                                                                  |
| 1600327508683 | SP 00007ffc18bcad40 IP 000056322e70bc4a  FrameSize 80                                                                                                                                  |
| 1600327508683 | SP 00007ffc18bcad90 IP 000056322e70c85e  FrameSize 32                                                                                                                                  |
| 1600327508683 | SP 00007ffc18bcadb0 IP 000056322f55805c  FrameSize 64                                                                                                                                  |
| 1600327508683 | SP 00007ffc18bcadf0 IP 000056322f0e5c0c  FrameSize 48                                                                                                                                  |
| 1600327508683 | SP 00007ffc18bcae20 IP 000056322e6ba2c5  FrameSize 16                                                                                                                                  |
| 1600327508683 | SP 00007ffc18bcae30 IP 000056322e6f4915  FrameSize 32                                                                                                                                  |
| 1600327508683 | SP 00007ffc18bcae50 IP 000056322e6d36bf  FrameSize 112                                                                                                                                 |
| 1600327508683 | Stacktrace Stage 1:                                                                                                                                                                    |
| 1600327508720 | SP 00007ffc18bcad20 IP 000056322e723526  com.oracle.svm.core.code.CodeInfo@0x5632318f9bd8 name = image code                                                                            |
| 1600327508720 | SP 00007ffc18bcad40 IP 000056322e70bc4a  com.oracle.svm.core.code.CodeInfo@0x5632318f9bd8 name = image code                                                                            |
| 1600327508720 | SP 00007ffc18bcad90 IP 000056322e70c85e  com.oracle.svm.core.code.CodeInfo@0x5632318f9bd8 name = image code                                                                            |
| 1600327508720 | SP 00007ffc18bcadb0 IP 000056322f55805c  com.oracle.svm.core.code.CodeInfo@0x5632318f9bd8 name = image code                                                                            |
| 1600327508720 | SP 00007ffc18bcadf0 IP 000056322f0e5c0c  com.oracle.svm.core.code.CodeInfo@0x5632318f9bd8 name = image code                                                                            |
| 1600327508720 | SP 00007ffc18bcae20 IP 000056322e6ba2c5  com.oracle.svm.core.code.CodeInfo@0x5632318f9bd8 name = image code                                                                            |
| 1600327508720 | SP 00007ffc18bcae30 IP 000056322e6f4915  com.oracle.svm.core.code.CodeInfo@0x5632318f9bd8 name = image code                                                                            |
| 1600327508720 | SP 00007ffc18bcae50 IP 000056322e6d36bf  com.oracle.svm.core.code.CodeInfo@0x5632318f9bd8 name = image code                                                                            |
| 1600327508720 | Stacktrace Stage 2:                                                                                                                                                                    |
| 1600327508721 | SP 00007ffc18bcad20 IP 000056322e723526  [image code] com.oracle.svm.core.jdk.VMErrorSubstitutions.shutdown(VMErrorSubstitutions.java:96)                                              |
| 1600327508721 | SP 00007ffc18bcad20 IP 000056322e723526  [image code] com.oracle.svm.core.util.VMError.shouldNotReachHere(VMError.java:75)                                                             |
| 1600327508721 | SP 00007ffc18bcad40 IP 000056322e70bc4a  [image code] com.oracle.svm.core.util.VMError.shouldNotReachHere(VMError.java:59)                                                             |
| 1600327508721 | SP 00007ffc18bcad40 IP 000056322e70bc4a  [image code] com.oracle.svm.core.posix.Util_jdk_internal_misc_Signal.ensureInitialized(SunMiscSubstitutions.java:177)                         |
| 1600327508721 | SP 00007ffc18bcad90 IP 000056322e70c85e  [image code] com.oracle.svm.core.posix.Util_jdk_internal_misc_Signal.numberFromName(SunMiscSubstitutions.java:225)                            |
| 1600327508721 | SP 00007ffc18bcadb0 IP 000056322f55805c  [image code] jdk.internal.misc.Signal.findSignal0(Signal.java:83)                                                                             |
| 1600327508721 | SP 00007ffc18bcadb0 IP 000056322f55805c  [image code] jdk.internal.misc.Signal.<init>(Signal.java:146)                                                                                 |
| 1600327508721 | SP 00007ffc18bcadf0 IP 000056322f0e5c0c  [image code] java.lang.Terminator.setup(Terminator.java:59)                                                                                   |
| 1600327508721 | SP 00007ffc18bcae20 IP 000056322e6ba2c5  [image code] com.oracle.svm.core.SubstrateExitHandlerFeature$$Lambda$6ac97f0688283293e0c2a0c25ff26531a4f1c7a1.run(Unknown Source)             |
| 1600327508721 | SP 00007ffc18bcae30 IP 000056322e6f4915  [image code] com.oracle.svm.core.jdk.RuntimeSupport.executeHooks(RuntimeSupport.java:125)                                                     |
| 1600327508721 | SP 00007ffc18bcae50 IP 000056322e6d36bf  [image code] com.oracle.svm.core.jdk.RuntimeSupport.executeStartupHooks(RuntimeSupport.java:75)                                               |
| 1600327508721 | SP 00007ffc18bcae50 IP 000056322e6d36bf  [image code] com.oracle.svm.core.JavaMainWrapper.runCore(JavaMainWrapper.java:141)                                                            |
| 1600327508721 | SP 00007ffc18bcae50 IP 000056322e6d36bf  [image code] com.oracle.svm.core.JavaMainWrapper.run(JavaMainWrapper.java:184)                                                                |
| 1600327508721 | SP 00007ffc18bcae50 IP 000056322e6d36bf  [image code] com.oracle.svm.core.code.IsolateEnterStub.JavaMainWrapper_run_5087f5482cc9a6abc971913ece43acb471d2631b(IsolateEnterStub.java:0)  |
| 1600327508721 | [Native image heap boundaries:                                                                                                                                                         |
| 1600327508721 | ReadOnly Primitives: 0x5632301f1008 .. 0x563230fd37e8                                                                                                                                  |
| 1600327508721 | ReadOnly References: 0x563230fd3820 .. 0x56323138c2e0                                                                                                                                  |
| 1600327508721 | ReadOnly Relocatables: 0x5632313db000 .. 0x5632317f9e80                                                                                                                                |
| 1600327508721 | Writable Primitives: 0x5632317fa000 .. 0x56323190f5d0                                                                                                                                  |
| 1600327508721 | Writable References: 0x56323190f5e8 .. 0x5632320787b8                                                                                                                                  |
| 1600327508721 | Writable Huge: 0x0 .. 0x0                                                                                                                                                              |
| 1600327508721 | ReadOnly Huge: 0x0 .. 0x0]                                                                                                                                                             |
| 1600327508721 | [Heap:                                                                                                                                                                                 |
| 1600327508721 | [Young generation:                                                                                                                                                                     |
| 1600327508721 | [Eden:                                                                                                                                                                                 |
| 1600327508721 | [edenSpace:                                                                                                                                                                            |
| 1600327508721 | aligned: 0/0 unaligned: 0/0]]                                                                                                                                                          |
| 1600327508721 | [Survivors:                                                                                                                                                                            |
| 1600327508721 | ]]                                                                                                                                                                                     |
| 1600327508721 | [Old generation:                                                                                                                                                                       |
| 1600327508721 | [oldFromSpace:                                                                                                                                                                         |
| 1600327508721 | aligned: 0/0 unaligned: 0/0]                                                                                                                                                           |
| 1600327508721 | [oldToSpace:                                                                                                                                                                           |
| 1600327508721 | aligned: 0/0 unaligned: 0/0]                                                                                                                                                           |
| 1600327508721 | ]                                                                                                                                                                                      |
| 1600327508721 | [Unused:                                                                                                                                                                               |
| 1600327508721 | aligned: 0/0]]                                                                                                                                                                         |
| 1600327508721 | Fatal error: Util_sun_misc_Signal.ensureInitialized: CSunMiscSignal.open() failed.                                                                                                     |
| 1600327508785 | END RequestId: 2920ad08-0136-470b-ac5b-df4a07886bce                                                                                                                                    |
| 1600327508785 | REPORT RequestId: 2920ad08-0136-470b-ac5b-df4a07886bce Duration: 183.17 ms Billed Duration: 200 ms Memory Size: 128 MB Max Memory Used: 11 MB                                          |
| 1600327508785 | RequestId: 2920ad08-0136-470b-ac5b-df4a07886bce Error: Runtime exited with error: exit status 99 Runtime.ExitError                                                                     |
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

It looks like the native code doesn't even get executed. Any ideas about whats wrong here ?

There's a fix in Spring Cloud Function now. The string->string function should be working again.

We found the bug in Spring Cloud Function: https://github.com/spring-cloud/spring-cloud-function/issues/588

This section in SimpleFunctionRegistry seems to be subtly wrong:

					if (messageNeedsConversion(rawType, (Message<?>) value)) {
						convertedValue = FunctionTypeUtils.isTypeCollection(type)
							? messageConverter.fromMessage((Message<?>) value, (Class<?>) rawType, FunctionTypeUtils.getGenericType(type))
							: messageConverter.fromMessage((Message<?>) value, (Class<?>) rawType);
						if (logger.isDebugEnabled()) {
							logger.debug("Converted from Message: " + convertedValue);
						}

						if (FunctionTypeUtils.isMessage(type) || ((Message<?>) value).getHeaders().containsKey("scf-func-name")) {
							convertedValue = MessageBuilder.withPayload(convertedValue)
									.copyHeaders(((Message<?>) value).getHeaders()).build();
						}
					}
					else if (!FunctionTypeUtils.isMessage(type)) {
						if (this.payloadIsSpecialType(((Message<?>) value).getPayload())) {
							return null;
						}
						convertedValue = ((Message<?>) convertedValue).getPayload();
					}
				}

The first branch is followed if the incoming value is a Message with a POJO payload, and in that case we check for containsKey("scf-func-name") and copy the headers over into the converted object. The second branch skips that logic, so the convertedValue is only the payload, and headers are dropped.

Here's what you get with debug logging:

2020-09-18 13:13:07.091 DEBUG 14 --- [ctor-http-nio-2] o.s.c.f.c.c.SimpleFunctionRegistry       : Converted input value "foo"
HI: "foo"
2020-09-18 13:13:07.091 DEBUG 14 --- [ctor-http-nio-2] o.s.c.f.c.c.SimpleFunctionRegistry       : Result of invocation of "foobar" function is 'hi "foo"!'
2020-09-18 13:13:07.091 DEBUG 14 --- [ctor-http-nio-2] o.s.c.f.c.c.SimpleFunctionRegistry       : Applying type conversion on output value
2020-09-18 13:13:07.091 DEBUG 14 --- [ctor-http-nio-2] o.s.c.f.a.aws.LambdaDestinationResolver  : Lambda invoming value: GenericMessage [payload=byte[13], headers={contentType=application/json, id=7bfcf1c9-15ee-b7df-7cd5-981e9fb9fd7d, timestamp=1600434787091}]
2020-09-18 13:13:07.091 DEBUG 14 --- [ctor-http-nio-2] o.s.c.f.a.aws.LambdaDestinationResolver  : Lambda destination resolved to: unknown
2020-09-18 13:13:07.091 DEBUG 14 --- [ctor-http-nio-2] o.s.w.r.f.client.ExchangeFunctions       : [52f9b41c] HTTP POST http://127.0.0.1:9001/2018-06-01/runtime/invocation/unknown/response
2020-09-18 13:13:07.091 DEBUG 14 --- [ctor-http-nio-2] o.s.w.r.f.client.ExchangeFunctions       : [14afb7fa] HTTP GET http://127.0.0.1:9001/2018-06-01/runtime/invocation/next
2020-09-18 13:13:07.092 DEBUG 14 --- [ctor-http-nio-2] o.s.core.codec.ByteArrayEncoder          : [52f9b41c] Writing 13 bytes
2020-09-18 13:13:07.092 DEBUG 14 --- [ctor-http-nio-2] o.s.w.r.f.client.ExchangeFunctions       : [52f9b41c] Response 400 BAD_REQUEST

So probably we need to fix that in Spring Cloud Function.

That's the same as me (I posted the logs in a comment above, omitting the long list of Hi: "foo"). Not sure why this is the case, since it works locally, and the tests are green. I'm going to look at it with @olegz.

The Spring Boot app started without any problems.

I see the same. So that tends to suggest that amazonlinux is not the same container image used in Lambda custom runtime.

I'll check that if I can put a hand on a GraalVM 20.3 build somewhere.

docker pull springci/spring-graalvm-native:master-java8

Looks like it might be fixed in GraalVM 20.3: https://github.com/oracle/graal/issues/2742. I'll see if I can verify.

That's what I tried. It fails in AWS because Lambda needs to terminate the app and cannot.

foo"
HI: "foo"
...
HI: "foo"
END RequestId: e99042ae-0e73-4ea5-8356-13436fcb6890
REPORT RequestId: e99042ae-0e73-4ea5-8356-13436fcb6890	Duration: 3000.22 ms	Billed Duration: 3500 ms	Memory Size: 1024 MB	Max Memory Used: 199 MB	Init Duration: 490.26 ms	
2020-09-18T11:25:03.160Z e99042ae-0e73-4ea5-8356-13436fcb6890 Task timed out after 3.00 seconds

I don't know. It looks like the same issue to me though. If you take the terminator out (by manually removing it from spring-graalvm-feature) the function fails in a different way in AWS because it cannot be terminated. Where did you find the "Amzonlinux container" you mentioned above?

Something changed in AWS/GraalVM. This looks relevant: https://github.com/oracle/graal/issues/841. From what I can tell AWS needs a terminator (to handle SIGTERM), but it doesn't provide the system call in its kernel that GraalVM native image is expecting when you build on Ubuntu. We might have to ask the GraalVM team to look into this.

It's a mystery (to me) why it isn't needed in reflection mode, but we need LogLevel to be reflectable so that users can set logging.level.* configuration and have it behave compatibly. I added a LogLevelHints but there's no way currently to make it only work in functional mode.

I thought this was working (something changed to do with build time initialization in native-image?), but currently no native image works with closedWorld=false because the InitializerLocator always returns null for all initializers.

I thought this was working (something changed to do with build time initialization in native-image?), but currently no native image works with closedWorld=false because the InitializerLocator always returns null for all initializers.

I see test failures in the "auto" sample to do with actuator properties binding when I try to switch to functional. Not sure why yet.

False alarm. I was trying to use @EnableAutoConfiguration and @ImportAutoConfiguration at the same time.

I tried it with this reflect-config.json and it worked

[
    {
        "name": "org.springframework.web.servlet.view.InternalResourceView",
        "allDeclaredConstructors": true
    }
]

so I guess a hint will be easy to craft.

petclinic-jdbc_1  | SEVERE: Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.view.InternalResourceView]: No default constructor found; nested exception is java.lang.NoSuchMethodException: org.springframework.web.servlet.view.InternalResourceView.<init>()] with root cause
petclinic-jdbc_1  | java.lang.NoSuchMethodException: org.springframework.web.servlet.view.InternalResourceView.<init>()
petclinic-jdbc_1  | 	at java.lang.Class.getConstructor0(DynamicHub.java:3082)
petclinic-jdbc_1  | 	at java.lang.Class.getDeclaredConstructor(DynamicHub.java:2178)
petclinic-jdbc_1  | 	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:140)
petclinic-jdbc_1  | 	at org.springframework.web.servlet.view.UrlBasedViewResolver.buildView(UrlBasedViewResolver.java:553)
petclinic-jdbc_1  | 	at org.springframework.web.servlet.view.InternalResourceViewResolver.buildView(InternalResourceViewResolver.java:106)
...

It's strange because Petclinic has always needed to use InternalResourceView so I don't know how it ever worked.

I see test failures in the "auto" sample to do with actuator properties binding when I try to switch to functional. Not sure why yet.

As observed in #272 it seems like we cannot yet support serializing Map<String,Object> to JSON, even if the values are simple primitiveish types (like String). It would be useful to work out what the barrier is. Probably just some reflection configuration on HashMap or similar.

Might need some changes in Spring Cloud? First we need some reflection hints for org.springframework.cloud.client.actuator.FeaturesEndpoint and all the nested classes that are used in the endpoint method (Features and Feature).

Here's the result from a native image when you do that:

$ curl localhost:8080/actuator/features
{"enabled":[{"type":"org.springframework.cloud.client.discovery.composite.CompositeDiscoveryClient","name":"DiscoveryClient","version":null,"vendor":null}],"disabled":["LoadBalancerClient"]}

same app in a regular JVM:

$ curl localhost:8080/actuator/features
{"enabled":[{"type":"org.springframework.cloud.client.discovery.composite.CompositeDiscoveryClient","name":"DiscoveryClient","version":"3.0.0-SNAPSHOT","vendor":"Pivotal Software, Inc."},{"type":"org.springframework.cloud.client.discovery.composite.reactive.ReactiveCompositeDiscoveryClient","name":"ReactiveDiscoveryClient","version":"3.0.0-SNAPSHOT","vendor":"Pivotal Software, Inc."}],"disabled":["LoadBalancerClient","ReactiveLoadBalancer"]}

LGTM. The "details" field is a Map<String,Object>, so we probably don't support serializing that in general (via Jackson) yet. Should probably be a separate issue.

See spring-projects-experimental/spring-graalvm-native#248 for more details. We could probably start by doing such transformation only on configuration classes without @Bean to handle the default @SpringBootApplication case. Step 2 could be to do this transformation only if there is no cross @Bean method invocation. cc @aclement

Latest snapshots now support proxyBeanMethods=true by generating subclass implementations at build time and using those in the initializer.

Found a typo in the test method name while going through docs. Fixed it.

Some of the @ManagementContextConfiguration classes are explicitly marked as proxyBeanMethods = false and some are not (e.g. WebMvcEndpointChildContextConfiguration). It seems like Spring doesn't recognize this in a meta-annotation, so it's probably a bug not to declare it explicitly:

		Class<WebMvcEndpointChildContextConfiguration> type = WebMvcEndpointChildContextConfiguration.class;
		String name = Configuration.class.getName();
		System.err.println(new SimpleMetadataReaderFactory().getMetadataReader(type.getName()).getAnnotationMetadata()
				.getAllAnnotationAttributes(name).get("proxyBeanMethods"));
		System.err.println(new SimpleMetadataReaderFactory().getMetadataReader(type.getName()).getAnnotationMetadata()
				.getAnnotationAttributes(name).get("proxyBeanMethods"));
		System.err.println(
				AnnotatedElementUtils.getMergedAnnotationAttributes(type, name, true, true).get("proxyBeanMethods"));
		System.err.println(
				AnnotatedElementUtils.findMergedAnnotationAttributes(type, name, true, true).get("proxyBeanMethods"));

prints

[false]
true
true
true

The code path in Spring is the second one (I think), via ConfigurationClassUtils.

SpringBootRedisHttpSessionConfiguration (and same for other data stores) is a subclass of RedisHttpSessionConfiguration. The base class has proxyBeanMethods=false and the subclass does not. Seems like a bug.

		System.err.println(new SimpleMetadataReaderFactory()
				.getMetadataReader(SpringBootRedisHttpSessionConfiguration.class.getName()).getAnnotationMetadata()
				.getAnnotationAttributes(Configuration.class.getName()).get("proxyBeanMethods"));
		System.err.println(new SimpleMetadataReaderFactory()
				.getMetadataReader(RedisHttpSessionConfiguration.class.getName()).getAnnotationMetadata()
				.getAnnotationAttributes(Configuration.class.getName()).get("proxyBeanMethods"));

prints

true
false

Duplicates #23380

SpringBootRedisHttpSessionConfiguration (and same for other data stores) is a subclass of RedisHttpSessionConfiguration. The base class has proxyBeanMethods=false and the subclass does not. Seems like a bug.

		System.err.println(new SimpleMetadataReaderFactory()
				.getMetadataReader(SpringBootRedisHttpSessionConfiguration.class.getName()).getAnnotationMetadata()
				.getAnnotationAttributes(Configuration.class.getName()).get("proxyBeanMethods"));
		System.err.println(new SimpleMetadataReaderFactory()
				.getMetadataReader(RedisHttpSessionConfiguration.class.getName()).getAnnotationMetadata()
				.getAnnotationAttributes(Configuration.class.getName()).get("proxyBeanMethods"));

prints

true
false

After a dedicated discussion with Spring Framework team about enabling or not functional only web configuration, it seems it is not going to happen in Spring Framework 5.3 timeframe, it raises too much open questions and seems a better fit for Spring Framework 6.

So my proposal is to perform a build-time analysis of the application and ignore beans like RequestMappingHandlerMapping and other annotation based ones when no @Controller and @RequestMapping are found, and when actuators are not used. Notice the actuator efficiency will be explored and discussed as part of https://github.com/spring-projects-experimental/spring-graalvm-native/issues/259. I think there is also a point related to Boot error handling potentially.

It should allow removal of explicit configurations without a footprint regression in our GraalVM native support. This would also remove our last blocking point on https://github.com/spring-projects-experimental/spring-fu/issues/273.

This is implemented (for now) as a flag spring.native.remove-request-mapping-support (see c9225a155). The func and tunc samples still have selected autoconfigs, but none of them is customized now, and they would work with @SpringBootApplication if anyone needed that.

Hello, spring-guides.

While studying hateos, I wrote an example with jpa, but it was a little different from the previous one. Can I PR my new example?

If you don't mind, please tell me what I need to make up for.

Thank you.

There's a template for new guides here: https://github.com/spring-guides/getting-started-guides. You would need to provide a README.adoc as well as just the complete sample code. There is already a HATEOAS guide though (https://github.com/spring-guides/gs-rest-hateoas) so I'm not sure we need another one.

Three small typos, one sentence updated for better readability at the same time.

• sha -> SHA
• lline -> line
• *Ad mentioned above already, this will also save a bit of space in the image, taken up [...] * -> As already mentioned above, this also saves some space in the image which would be occupied by tools that are not needed at runtime.
• neeed -> need

Signed-off-by: Martin Röbke [email protected]

The snippet accidentally uses builder instead of imageName.

You can modify the image name ... in Gradle using bootBuildImage.imageName. (Was bootBuildImage.builder)

bootBuildImage {
	imageName = "myorg/demo"
}

I think someone else already fixed this.

I like the working dir change. The "cache busting" seems less useful (META-INF is likely to change at least as frequently as libraries).

ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile (default-compile) on project gs-spring-boot: Compilation failure: Compilation failure: 
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[54,11] cannot find symbol
[ERROR]   symbol:   class JwtAccessTokenConverter
[ERROR]   location: class SecurityConfig
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[61,11] cannot find symbol
[ERROR]   symbol:   class TokenStore
[ERROR]   location: class SecurityConfig
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[67,11] cannot find symbol
[ERROR]   symbol:   class DefaultTokenServices
[ERROR]   location: class SecurityConfig
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[28,4] method does not override or implement a method from a supertype
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[30,19] cannot find symbol
[ERROR]   symbol: method authenticationManager()
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[33,4] method does not override or implement a method from a supertype
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[36,36] cannot find symbol
[ERROR]   symbol:   class ShaPasswordEncoder
[ERROR]   location: class SecurityConfig
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[35,31] cannot find symbol
[ERROR]   symbol:   variable userDetailsService
[ERROR]   location: class SecurityConfig
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[39,4] method does not override or implement a method from a supertype
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[55,7] cannot find symbol
[ERROR]   symbol:   class JwtAccessTokenConverter
[ERROR]   location: class SecurityConfig
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[55,47] cannot find symbol
[ERROR]   symbol:   class JwtAccessTokenConverter
[ERROR]   location: class SecurityConfig
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[62,18] cannot find symbol
[ERROR]   symbol:   class JwtTokenStore
[ERROR]   location: class SecurityConfig
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[68,7] cannot find symbol
[ERROR]   symbol:   class DefaultTokenServices
[ERROR]   location: class SecurityConfig
[ERROR] /workspace/gs-spring-boot/complete/src/main/java/config/SecurityConfig.java:[68,55] cannot find symbol
[ERROR]   symbol:   class DefaultTokenServices
[ERROR]   location: class SecurityConfig
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
gitpod /workspace/gs-spring-boot/complete $ 

I use intelliJ to create springboot project，the created project run with no problems when i choose build with maven. If i choose build with gradle, the created project can run , but the following problems occur:

1. application.properties where i change the http port seems doesn't work (\spring\boot\src\main\resources\application.properties)
2. properties file does work when i move it to the root （\spring\boot\application.properties）
3. the build directory only has classes but no resources，and the application doesn't work with static resources.

I compare the maven project and the gradle project which both are generated originally by the intelliJ, the gradle project has a submodule where the problems may be, something relaed to the resource folder setting. I can't figure it out now。

Thanks for the patch. The sample apps are still using 2.3.2 though. Did you forget to update them?

Removed bullet point errors, the api does not expose such a endpoint

+1 for a doc link. And the same for rabbit and Kafka guides.

LGTM

Many (most) hub users alias it to "git". I guess we could mention that instead?

I think you have to call a method on the bean to be sure that it has initialized (otherwise it could be a lazy proxy).

The webflux-netty sample has this code:

@SpringBootApplication(proxyBeanMethods = false)
public class WebfluxApplication {

	public static void main(String[] args) {
		SpringApplication.run(WebfluxApplication.class, args);
	}

	@RestController
	class Foo {

		@GetMapping("/")
		public String greet() {
			return "hi!";
		}
	}

}

It's unusual to have a non-static nested class that works as a @Component, and I think it is working, but by accident. If you delete the Foobar class from this sample it fails at runtime:

Caused by: org.springframework.core.annotation.AnnotationConfigurationException: Attribute 'value' in annotation [org.springframework.web.bind.annotation.RestController] is declared as an @AliasFor nonexistent attribute 'value' in annotation [org.springframework.stereotype.Controller].

because the reflection and resource configurations are not added for @Controller. So even though there is a @RestController (in the nested class), it is not causing the Webflux annotation hints to be applied.

Looks like the error is in org.apache.cxf (not org.springframework). Maybe you need to ask the CXF community to help out?

http://localhost:8888 works, 'http://172.17.0.1:8888 barfs. Probably a GraalVM issue?

I couldn't reproduce this.

Also the /health endpoint is different. It fails to pick up the Spring Cloud health indicators (which are present as beans) for discovery client, I think for the same reason - there's an @ConditionalOnBean that is not matching where it should for discovery clients.

http://localhost:8888 works, 'http://172.17.0.1:8888 barfs. Probably a GraalVM issue?

$ docker run -e MANAGEMENT_ENDPOINTS_WEB_EXPOSURE_INCLUDE='*' -p 8080:8080 actuator-webflux:0.0.1-SNAPSHOT
$ curl localhost:8080/actuator/configprops
{"timestamp":"2020-09-08T13:58:12.280+00:00","path":"/actuator/configprops","status":404,"error":"Not Found","message":null,"requestId":"b2c968ed-1"}

The /conditions report says that the bean was created:

"ConfigurationPropertiesReportEndpointAutoConfiguration#configurationPropertiesReportEndpoint": [
{
"condition": "OnBeanCondition",
"message": "@ConditionalOnMissingBean (types: org.springframework.boot.actuate.context.properties.ConfigurationPropertiesReportEndpoint; SearchStrategy: all) did not find any beans"
}
],

I noticed a new feature in Spring Boot 2.4 - there's a BootstrapRegistry (kind of like a little DI framework) in the EnvironmentPostProcessors. Maybe that can be used to set up the decrypted properties? Could maybe even use a "legacy" Bootstrap application context to back the suppliers registered with the BootstrapRegistry.

There is a public constructor EnvironmentPostProcessorApplicationListener(EnvironmentPostProcessorsFactory) but currently no way to use it except with byte code tricks or monkey patches - the current implementation is to use SpringFactoriesLoader to instantiate using the default constructor and take it from there.

What we might need is an abstraction that can be created via SpringFactoriesLoader but which will back off if it finds one is already present. At a granular level this could be something simple like a composite version of EnvironmentPostProcessorApplicationListener that picks the first thing that is non-null (or some other tie breaker). Or it could be a new factory abstraction that is more generic and can be applied to other things in spring.factories, and behaves similarly - backs off if another instance is provided with higher priority by some definition.

EnvironmentPostProcessorApplicationListener also contains this new abstractions of BootstrapRegisty and Instantiator with no option to override. Maybe those could be the focus of the new abstraction (being able to replace or override some or all calls to the DefaultBootstrapRegistry, for example)?

See also #15704 and #16880

Are we assuming that you can't use environment or system variables to override properties?

That's not going to be true in general, but I think for building native images and containers people are willing to accept that kind of compromise. We just have to be explicit that they will only get the souped up performance in a "strict closed world" (no changes to class path and environment at runtime).

I guess this will require a judgement call. The problem is that FeaturesEndpoint relies on this snippet:

	private void addFeature(Features features, NamedFeature feature) {
		Class<?> type = feature.getType();
		features.getEnabled()
				.add(new Feature(feature.getName(), type.getCanonicalName(),
						type.getPackage().getImplementationVersion(),
						type.getPackage().getImplementationVendor()));
	}

and the package information from the manifest is not available in general (in particular not in a GraalVM native image). It would be ideal to provide a fallback. Or just omit it if not known?

Might need some changes in Spring Cloud? First we need some reflection hints for org.springframework.cloud.client.actuator.FeaturesEndpoint and all the nested classes that are used in the endpoint method (Features and Feature).

Here's the result from a native image when you do that:

$ curl localhost:8080/actuator/features
{"enabled":[{"type":"org.springframework.cloud.client.discovery.composite.CompositeDiscoveryClient","name":"DiscoveryClient","version":null,"vendor":null}],"disabled":["LoadBalancerClient"]}commons$ 

same app in a regular JVM:

$ curl localhost:8080/actuator/features
{"enabled":[{"type":"org.springframework.cloud.client.discovery.composite.CompositeDiscoveryClient","name":"DiscoveryClient","version":"3.0.0-SNAPSHOT","vendor":"Pivotal Software, Inc."},{"type":"org.springframework.cloud.client.discovery.composite.reactive.ReactiveCompositeDiscoveryClient","name":"ReactiveDiscoveryClient","version":"3.0.0-SNAPSHOT","vendor":"Pivotal Software, Inc."}],"disabled":["LoadBalancerClient","ReactiveLoadBalancer"]}

I think ConfigurationPropertiesReportEndpoint needs to be added to the hints in ConfigurationPropertiesReportEndpointAutoConfigurationHints.

$ docker run -e MANAGEMENT_ENDPOINTS_WEB_EXPOSURE_INCLUDE='*' -p 8080:8080 actuator-webflux:0.0.1-SNAPSHOT
$ curl localhost:8080/actuator/configprops
{"timestamp":"2020-09-08T13:58:12.280+00:00","path":"/actuator/configprops","status":404,"error":"Not Found","message":null,"requestId":"b2c968ed-1"}

The /conditions report says that the bean was created:

"ConfigurationPropertiesReportEndpointAutoConfiguration#configurationPropertiesReportEndpoint": [
{
"condition": "OnBeanCondition",
"message": "@ConditionalOnMissingBean (types: org.springframework.boot.actuate.context.properties.ConfigurationPropertiesReportEndpoint; SearchStrategy: all) did not find any beans"
}
],

Also FWIW here's an interface in Spring Init for bypassing Binder in @ConfigurationProperties:

public interface PropertiesBinder<T> {

	T bind(T bean, Environment environment);

}

Then there's a global utility PropertiesBinders that you can use to register instances of PropertiesBinder. Something like that would work here - a hook to replace the default Binder based Environment bindings.

Here's another idea: Spring Boot can trace back all Binder results to a config property name and value, I believe. Maybe we could use that information to short cut the process - bind once and index the result and re-use it. I'd be happy to look into doing that at build time (fits with the general agenda and constraints of spring-init). We would need to be able to override the existing factories more easily probably - at runtime you would want to consult the record of what is known about at build time so you can avoid doing it again.

There is no bean of type ContextRefresher in 3.0.0 snapshots, so the RefreshEndpoint is never created.

There's a legacy condition on ConfigClientAutoConfiguration.ConfigServerHealthIndicatorConfiguration which only applies if there is a bootstrap context. So the health indicator is disabled by default.

I hope there are many places we can improve this. Let's start with a simple one.

ConfigDataProperties is a value object, and is constructed reflectively via Binder.bind() which is wasteful. As far as I can tell it is only ever used to look up the value of spring.config.import (the env var upper case version is never used because it would be bound already to the "initial" imports). And "import" doesn't have any kebab case variants, so you don't need a Binder. I think we can simply look in the Environment and if the property is there construct a ConfigDataProperties instance directly by calling the constructor or a factor method.

It also uses an annotation @Name to rename the property bound to its constructor, which also seems unnecessarily indirect (we control both the property name and the constructor source code). We probably can't get rid of the annotation processing if we need to use Binder.bind(), but if we can skip that then even better.