IllegalArgumentException while indexing

[dimo414]

I'm seeing "IDE Fatal Errors" reports from IntelliJ, with the following stack trace:

Error indexing:file://E:/Workspace/OpenSCAD/lib/MCAD/fonts.scad

java.lang.IllegalArgumentException: Argument for @NotNull parameter 'value' of com/intellij/psi/stubs/ObjectStubTree$StubIndexSink.occurrence must not be null
	at com.intellij.psi.stubs.ObjectStubTree$StubIndexSink.$$$reportNull$$$0(ObjectStubTree.java)
	at com.intellij.psi.stubs.ObjectStubTree$StubIndexSink.occurrence(ObjectStubTree.java)
	at com.javampire.openscad.psi.stub.OpenSCADFunctionStubElementType.indexStub(OpenSCADFunctionStubElementType.java:54)
	at com.javampire.openscad.psi.stub.OpenSCADFunctionStubElementType.indexStub(OpenSCADFunctionStubElementType.java:15)
	at com.intellij.psi.stubs.ObjectStubTree.indexStubTree(ObjectStubTree.java:65)
	at com.intellij.psi.stubs.SerializedStubTree.indexTree(SerializedStubTree.java:192)
	at com.intellij.psi.stubs.SerializedStubTree.serializeStub(SerializedStubTree.java:61)
	at com.intellij.psi.stubs.StubUpdatingIndex$1.computeValue(StubUpdatingIndex.java:179)
	at com.intellij.psi.stubs.StubUpdatingIndex$1.computeValue(StubUpdatingIndex.java:150)
	at com.intellij.psi.stubs.StubUpdatingIndex$1.computeValue(StubUpdatingIndex.java:117)
	at com.intellij.util.indexing.SingleEntryIndexer.map(SingleEntryIndexer.java:30)
	at com.intellij.util.indexing.SingleEntryIndexer.map(SingleEntryIndexer.java:19)
	at com.intellij.util.indexing.impl.MapReduceIndex.mapByIndexer(MapReduceIndex.java:291)
	at com.intellij.util.indexing.impl.MapReduceIndex.mapInput(MapReduceIndex.java:283)
	at com.intellij.util.indexing.impl.storage.VfsAwareMapReduceIndex.mapInput(VfsAwareMapReduceIndex.java:168)
	at com.intellij.util.indexing.impl.storage.VfsAwareMapReduceIndex.mapInput(VfsAwareMapReduceIndex.java:46)
	at com.intellij.util.indexing.impl.MapReduceIndex.mapInputAndPrepareUpdate(MapReduceIndex.java:226)
	at com.intellij.psi.stubs.StubUpdatingIndex$MyIndex.mapInputAndPrepareUpdate(StubUpdatingIndex.java:448)
	at com.intellij.psi.stubs.StubUpdatingIndex$MyIndex.mapInputAndPrepareUpdate(StubUpdatingIndex.java:408)
	at com.intellij.util.indexing.FileBasedIndexImpl.updateSingleIndex(FileBasedIndexImpl.java:1476)
	at com.intellij.util.indexing.FileBasedIndexImpl.lambda$doIndexFileContent$23(FileBasedIndexImpl.java:1358)
	at com.intellij.openapi.fileTypes.impl.FileTypeManagerImpl.freezeFileTypeTemporarilyIn(FileTypeManagerImpl.java:555)
	at com.intellij.util.indexing.FileBasedIndexImpl.doIndexFileContent(FileBasedIndexImpl.java:1328)
	at com.intellij.util.indexing.FileBasedIndexImpl.indexFileContent(FileBasedIndexImpl.java:1255)
	at com.intellij.util.indexing.contentQueue.IndexUpdateRunner.lambda$indexOneFileOfJob$2(IndexUpdateRunner.java:251)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.insideReadAction(NonBlockingReadActionImpl.java:521)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.lambda$attemptComputation$3(NonBlockingReadActionImpl.java:468)
	at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1137)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.lambda$runInReadActionWithWriteActionPriority$0(ProgressIndicatorUtils.java:76)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runActionAndCancelBeforeWrite(ProgressIndicatorUtils.java:152)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.lambda$runWithWriteActionPriority$1(ProgressIndicatorUtils.java:113)
	at com.intellij.openapi.progress.ProgressManager.lambda$runProcess$0(ProgressManager.java:59)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:178)
	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:658)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:610)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:65)
	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:165)
	at com.intellij.openapi.progress.ProgressManager.runProcess(ProgressManager.java:59)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runWithWriteActionPriority(ProgressIndicatorUtils.java:110)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runInReadActionWithWriteActionPriority(ProgressIndicatorUtils.java:76)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.attemptComputation(NonBlockingReadActionImpl.java:486)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.executeSynchronously(NonBlockingReadActionImpl.java:422)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl.executeSynchronously(NonBlockingReadActionImpl.java:186)
	at com.intellij.util.indexing.contentQueue.IndexUpdateRunner.indexOneFileOfJob(IndexUpdateRunner.java:254)
	at com.intellij.util.indexing.contentQueue.IndexUpdateRunner.lambda$indexJobsFairly$1(IndexUpdateRunner.java:196)
	at com.intellij.openapi.progress.impl.ProgressSuspender.executeNonSuspendableSection(ProgressSuspender.java:83)
	at com.intellij.util.indexing.contentQueue.IndexUpdateRunner.indexJobsFairly(IndexUpdateRunner.java:199)
	at com.intellij.util.indexing.contentQueue.IndexUpdateRunner.lambda$doIndexFiles$0(IndexUpdateRunner.java:133)
	at com.intellij.util.concurrency.BoundedTaskExecutor.doRun(BoundedTaskExecutor.java:216)
	at com.intellij.util.concurrency.BoundedTaskExecutor.access$200(BoundedTaskExecutor.java:27)
	at com.intellij.util.concurrency.BoundedTaskExecutor$1.execute(BoundedTaskExecutor.java:195)
	at com.intellij.util.ConcurrencyUtil.runUnderThreadName(ConcurrencyUtil.java:208)
	at com.intellij.util.concurrency.BoundedTaskExecutor$1.run(BoundedTaskExecutor.java:184)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665)
	at java.base/java.lang.Thread.run(Thread.java:834)

The file in question is https://github.com/openscad/MCAD/blob/bd761409f7644faf7c41237aef1777b079ddac4b/fonts.scad

Please let me know if I can provide more details.

[ldenisey]

Thanks for your feedback. It seems to be linked to #80. Some modules have names starting with numbers, indexing is failing because of those.

[ldenisey]

Fixed, will be released in version 2.2.0 coming soon.