Errors in JUnit5TestSearcher

java.lang.NullPointerException: Cannot read the array length because "this.fields" is null
	at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.getField(BinaryTypeBinding.java:1426)
	at org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding.buildTargetAnnotation(AnnotationBinding.java:179)
	at org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding.addStandardAnnotations(AnnotationBinding.java:83)
	at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.retrieveAnnotations(BinaryTypeBinding.java:1855)
	at org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding.getAnnotations(ReferenceBinding.java:1067)
	at org.eclipse.jdt.core.dom.TypeBinding.getAnnotations(TypeBinding.java:122)
	at com.microsoft.java.test.plugin.searcher.JUnit5TestSearcher.matchesNameInAnnotationHierarchy(JUnit5TestSearcher.java:110)
	at com.microsoft.java.test.plugin.searcher.JUnit5TestSearcher.findAnnotation(JUnit5TestSearcher.java:85)
	at com.microsoft.java.test.plugin.searcher.JUnit5TestSearcher.isTestMethod(JUnit5TestSearcher.java:69)
	at com.microsoft.java.test.plugin.util.TestSearchUtils.findTestItemsInTypeBinding(TestSearchUtils.java:382)
	at com.microsoft.java.test.plugin.util.TestSearchUtils.findTestTypesAndMethods(TestSearchUtils.java:360)
	at com.microsoft.java.test.plugin.handler.TestDelegateCommandHandler.executeCommand(TestDelegateCommandHandler.java:60)
	at org.eclipse.jdt.ls.core.internal.handlers.WorkspaceExecuteCommandHandler$1.run(WorkspaceExecuteCommandHandler.java:215)

java.lang.NullPointerException: Cannot assign field "mayTolerateMissingType" because "this.env" is null
	at org.eclipse.jdt.internal.compiler.lookup.UnresolvedAnnotationBinding.resolve(UnresolvedAnnotationBinding.java:34)
	at org.eclipse.jdt.internal.compiler.lookup.UnresolvedAnnotationBinding.getAnnotationType(UnresolvedAnnotationBinding.java:41)
	at org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding.addStandardAnnotations(AnnotationBinding.java:47)
	at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.retrieveAnnotations(BinaryTypeBinding.java:1855)
	at org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding.getAnnotations(ReferenceBinding.java:1067)
	at org.eclipse.jdt.core.dom.TypeBinding.getAnnotations(TypeBinding.java:122)
	at com.microsoft.java.test.plugin.searcher.JUnit5TestSearcher.matchesNameInAnnotationHierarchy(JUnit5TestSearcher.java:110)
	at com.microsoft.java.test.plugin.searcher.JUnit5TestSearcher.findAnnotation(JUnit5TestSearcher.java:85)
	at com.microsoft.java.test.plugin.searcher.JUnit5TestSearcher.isTestMethod(JUnit5TestSearcher.java:69)
	at com.microsoft.java.test.plugin.util.TestSearchUtils.findTestItemsInTypeBinding(TestSearchUtils.java:382)
	at com.microsoft.java.test.plugin.util.TestSearchUtils.findTestTypesAndMethods(TestSearchUtils.java:360)
	at com.microsoft.java.test.plugin.handler.TestDelegateCommandHandler.executeCommand(TestDelegateCommandHandler.java:60)

まず JUnit5TestSearcher.java の 69、85、110 行目から始め、続いて TestSearchUtils.findTestItemsInTypeBinding を通してスタックトレースを追跡します。影響を受けたプロジェクトでテスト検出を再現し、どのアノテーション階層パスが報告された NullPointerExceptions を引き起こすのかを特定します。JUnit 5 のテスト検索がこれらのエラーなしで完了すれば完了です。