IAE when trying to open ICompilationUnit.java

[mickaelistria]

Open BindingResolver.java and try hovering in Javadoc getBindingResolver token.
Expected: everything is fine
Got: exception

java.lang.RuntimeException: java.lang.IllegalArgumentException
	at org.eclipse.jdt.core.dom.JavacCompilationUnitResolver.parse(JavacCompilationUnitResolver.java:844)
	at org.eclipse.jdt.core.dom.JavacCompilationUnitResolver.toCompilationUnit(JavacCompilationUnitResolver.java:545)
	at org.eclipse.jdt.core.dom.ASTParser.internalCreateASTCached(ASTParser.java:1299)
	at org.eclipse.jdt.core.dom.ASTParser.lambda$1(ASTParser.java:1178)
	at org.eclipse.jdt.internal.core.JavaModelManager.cacheZipFiles(JavaModelManager.java:5694)
	at org.eclipse.jdt.core.dom.ASTParser.internalCreateAST(ASTParser.java:1178)
	at org.eclipse.jdt.core.dom.ASTParser.createAST(ASTParser.java:918)
	at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure(CompilationUnit.java:174)
	at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:246)
	at org.eclipse.jdt.internal.core.SourceRefElement.generateInfos(SourceRefElement.java:127)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:569)
	at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:292)
	at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:278)
	at org.eclipse.jdt.internal.core.SearchableEnvironment.find(SearchableEnvironment.java:206)
	at org.eclipse.jdt.internal.core.SearchableEnvironment.findType(SearchableEnvironment.java:566)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.fromSplitPackageOrOracle(LookupEnvironment.java:473)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.lambda$1(LookupEnvironment.java:346)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForTypeFromModules(LookupEnvironment.java:440)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:345)
	at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:275)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.findImport(CompilationUnitScope.java:643)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.findSingleImport(CompilationUnitScope.java:715)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInImports(CompilationUnitScope.java:542)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInTypes(CompilationUnitScope.java:617)
	at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.resolve(HierarchyResolver.java:869)
	at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.resolve(HierarchyResolver.java:670)
	at org.eclipse.jdt.internal.core.hierarchy.HierarchyBuilder.buildSupertypes(HierarchyBuilder.java:131)
	at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.build(IndexBasedHierarchyBuilder.java:156)
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.compute(TypeHierarchy.java:305)
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.refresh(TypeHierarchy.java:1263)
	at org.eclipse.jdt.internal.core.CreateTypeHierarchyOperation.executeOperation(CreateTypeHierarchyOperation.java:94)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:751)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:816)
	at org.eclipse.jdt.internal.core.SourceType.newSupertypeHierarchy(SourceType.java:860)
	at org.eclipse.jdt.internal.core.SourceType.newSupertypeHierarchy(SourceType.java:811)
	at org.eclipse.jdt.internal.corext.util.SuperTypeHierarchyCache.getTypeHierarchy(SuperTypeHierarchyCache.java:144)
	at org.eclipse.jdt.internal.corext.util.SuperTypeHierarchyCache.getTypeHierarchy(SuperTypeHierarchyCache.java:96)
	at org.eclipse.jdt.core.manipulation.internal.javadoc.CoreJavadocAccess.getSuperclassReferenceMethodData(CoreJavadocAccess.java:272)
	at org.eclipse.jdt.core.manipulation.internal.javadoc.CoreJavadocAccessImpl.createSuperMethodReferences(CoreJavadocAccessImpl.java:455)
	at org.eclipse.jdt.core.manipulation.internal.javadoc.CoreJavadocAccessImpl.handleSuperMethodReferences(CoreJavadocAccessImpl.java:445)
	at org.eclipse.jdt.core.manipulation.internal.javadoc.CoreJavadocAccessImpl.elementToHTML(CoreJavadocAccessImpl.java:384)
	at org.eclipse.jdt.core.manipulation.internal.javadoc.CoreJavadocAccessImpl.toHTML(CoreJavadocAccessImpl.java:164)
	at org.eclipse.jdt.core.manipulation.internal.javadoc.CoreJavadocAccess.javadoc2HTML(CoreJavadocAccess.java:433)
	at org.eclipse.jdt.core.manipulation.internal.javadoc.CoreJavadocAccess.getHTMLContentFromSource(CoreJavadocAccess.java:368)
	at org.eclipse.jdt.core.manipulation.internal.javadoc.CoreJavadocAccess.getHTMLContent(CoreJavadocAccess.java:229)
	at org.eclipse.jdt.internal.ui.text.javadoc.JavadocContentAccess2.getHTMLContent(JavadocContentAccess2.java:49)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.getHoverInfo(JavadocHover.java:799)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.internalGetHoverInfo(JavadocHover.java:717)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.getHoverInfo2(JavadocHover.java:709)
	at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:163)
	at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo2(BestMatchHover.java:130)
	at org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy.getHoverInfo2(JavaEditorTextHoverProxy.java:89)
	at org.eclipse.jface.text.TextViewerHoverManager$1.run(TextViewerHoverManager.java:155)
Caused by: java.lang.IllegalArgumentException
	at org.eclipse.jdt.core.dom.CompilationUnit.setCommentTable(CompilationUnit.java:1016)
	at org.eclipse.jdt.core.dom.JavacCompilationUnitResolver.addCommentsToUnit(JavacCompilationUnitResolver.java:971)
	at org.eclipse.jdt.core.dom.JavacCompilationUnitResolver.parse(JavacCompilationUnitResolver.java:789)
	... 52 more

[mickaelistria]

A simpler way to reproduce: just try opening ICompilationUnit.java , and you get a failure to open editor