PhpStorm 2020.3 exception - XML include processing is disabled during indexing, please fix callers who insists on enabling it

Describe the bug (*)

PhpStorm Error Notification

java.lang.Throwable: XML include processing is disabled during indexing, please fix callers who insists on enabling it
	at com.intellij.openapi.diagnostic.Logger.error(Logger.java:159)
	at com.intellij.xml.util.InclusionProvider.getIncludedTags(InclusionProvider.java:35)
	at com.intellij.xml.util.XmlPsiUtil$XmlElementProcessor.processXmlElements(XmlPsiUtil.java:118)
	at com.intellij.xml.util.XmlPsiUtil.processXmlElements(XmlPsiUtil.java:52)
	at com.intellij.xml.util.XmlPsiUtil.processXmlElements(XmlPsiUtil.java:43)
	at com.intellij.xml.util.XmlPsiUtil.processXmlElements(XmlPsiUtil.java:35)
	at com.intellij.xml.util.XmlPsiUtil.processXmlElements(XmlPsiUtil.java:29)
	at com.intellij.psi.impl.source.xml.XmlElementImpl.processElements(XmlElementImpl.java:47)
	at com.intellij.psi.impl.source.xml.XmlTagValueImpl.createXmlTagValue(XmlTagValueImpl.java:167)
	at com.intellij.psi.impl.source.xml.XmlTagImpl.createXmlTagValue(XmlTagImpl.java:279)
	at com.intellij.psi.impl.source.xml.XmlTagImpl.getValue(XmlTagImpl.java:292)
	at com.magento.idea.magento2plugin.stubs.indexes.xml.PhpClassNameIndex.fillMap(PhpClassNameIndex.java:70)
	at com.magento.idea.magento2plugin.stubs.indexes.xml.PhpClassNameIndex.lambda$getIndexer$0(PhpClassNameIndex.java:52)
	at com.intellij.util.indexing.impl.MapReduceIndex.mapByIndexer(MapReduceIndex.java:291)
	at com.intellij.util.indexing.impl.MapReduceIndex.mapInput(MapReduceIndex.java:283)
	at com.intellij.util.indexing.impl.storage.VfsAwareMapReduceIndex.mapInput(VfsAwareMapReduceIndex.java:168)
	at com.intellij.util.indexing.impl.storage.VfsAwareMapReduceIndex.mapInput(VfsAwareMapReduceIndex.java:46)
	at com.intellij.util.indexing.impl.MapReduceIndex.mapInputAndPrepareUpdate(MapReduceIndex.java:226)
	at com.intellij.indexing.shared.platform.impl.MergedInvertedIndex.updateBaseIndex(MergedInvertedIndex.java:324)
	at com.intellij.indexing.shared.platform.impl.MergedInvertedIndex.mapInputAndPrepareUpdate(MergedInvertedIndex.java:112)
	at com.intellij.indexing.shared.platform.impl.MergedInvertedIndex.mapInputAndPrepareUpdate(MergedInvertedIndex.java:38)
	at com.intellij.util.indexing.FileBasedIndexImpl.updateSingleIndex(FileBasedIndexImpl.java:1474)
	at com.intellij.util.indexing.FileBasedIndexImpl.lambda$doIndexFileContent$23(FileBasedIndexImpl.java:1356)
	at com.intellij.openapi.fileTypes.impl.FileTypeManagerImpl.freezeFileTypeTemporarilyIn(FileTypeManagerImpl.java:555)
	at com.intellij.util.indexing.FileBasedIndexImpl.doIndexFileContent(FileBasedIndexImpl.java:1326)
	at com.intellij.util.indexing.FileBasedIndexImpl.indexFileContent(FileBasedIndexImpl.java:1253)
	at com.intellij.util.indexing.contentQueue.IndexUpdateRunner.lambda$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)

To Reproduce (*)

1. There is not specific conditions for reproduce this issue.

Expected behavior (*)

Works without any errors.

Screenshots

Please complete the following information: (*)

• OS: MacOS 10.15.7
• PhpStorm version: PhpStorm 2020.3 Build #PS-203.5981.175, built on December 2, 2020
• Plugin Version: 2.0.2

[VitaliyBoyko]

Already fixed it. To be published soon.

[VitaliyBoyko]

Caused by platform update to Java 11. Working on fixes. Keep you posted.