java.lang.Throwable

java.lang.Throwable
 at com.intellij.openapi.diagnostic.Logger.assertTrue(Logger.java:89)
 at com.intellij.openapi.diagnostic.Logger.assertTrue(Logger.java:96)
 at com.intellij.psi.impl.file.impl.FileManagerImpl.a(FileManagerImpl.java:34)
 at com.intellij.psi.impl.file.impl.FileManagerImpl.findClass(FileManagerImpl.java:157)
 at com.intellij.psi.impl.PsiManagerImpl$PsiElementFinderImpl.findClass(PsiManagerImpl.java:27)
 at com.intellij.psi.impl.PsiManagerImpl.findClass(PsiManagerImpl.java:389)

 at com.intellij.psi.impl.source.xml.XmlTagImpl.accept(XmlTagImpl.java:132)

 at com.intellij.psi.impl.source.xml.XmlTagImpl.accept(XmlTagImpl.java:132)
 at com.intellij.psi.impl.source.tree.CompositePsiElement.acceptChildren(CompositePsiElement.java:96)
 at com.intellij.psi.PsiRecursiveElementVisitor.visitElement(PsiRecursiveElementVisitor.java:37)
 at com.intellij.psi.XmlElementVisitor.visitXmlElement(XmlElementVisitor.java:22)
 at com.intellij.psi.XmlElementVisitor.visitXmlTag(XmlElementVisitor.java:54)

 at com.intellij.psi.impl.source.xml.XmlTagImpl.accept(XmlTagImpl.java:132)

 at com.intellij.psi.impl.source.xml.XmlTagImpl.accept(XmlTagImpl.java:132)
 at com.intellij.psi.impl.source.tree.CompositePsiElement.acceptChildren(CompositePsiElement.java:96)
 at com.intellij.psi.PsiRecursiveElementVisitor.visitElement(PsiRecursiveElementVisitor.java:37)
 at com.intellij.psi.XmlElementVisitor.visitXmlElement(XmlElementVisitor.java:22)
 at com.intellij.psi.XmlElementVisitor.visitXmlDocument(XmlElementVisitor.java:42)
 at com.intellij.psi.impl.source.xml.XmlDocumentImpl.accept(XmlDocumentImpl.java:16)
 at com.intellij.psi.impl.source.TreeWrapperPsiElement.acceptChildren(TreeWrapperPsiElement.java:70)
 at com.intellij.psi.PsiRecursiveElementVisitor.visitElement(PsiRecursiveElementVisitor.java:37)
 at com.intellij.psi.JavaElementVisitor.visitFile(JavaElementVisitor.java:140)
 at com.intellij.psi.XmlElementVisitor.visitXmlFile(XmlElementVisitor.java:26)
 at com.intellij.psi.impl.source.xml.XmlFileImpl.accept(XmlFileImpl.java:37)

 at com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.a(LocalInspectionsPass.java:242)

 at com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.a(LocalInspectionsPass.java:242)
 at com.intellij.codeInsight.daemon.impl.LocalInspectionsPass.doCollectInformation(LocalInspectionsPass.java:140)
 at com.intellij.codeHighlighting.TextEditorHighlightingPass.collectInformation(TextEditorHighlightingPass.java:59)
 at com.intellij.codeInsight.daemon.impl.UpdateThread$2.run(UpdateThread.java:1)
 at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:308)
 at com.intellij.codeInsight.daemon.impl.UpdateThread.a(UpdateThread.java:29)
 at com.intellij.codeInsight.daemon.impl.UpdateThread.access$100(UpdateThread.java:23)
 at com.intellij.codeInsight.daemon.impl.UpdateThread$1.run(UpdateThread.java:3)
 at com.intellij.openapi.progress.impl.ProgressManagerImpl.runProcess(ProgressManagerImpl.java:38)
 at com.intellij.codeInsight.daemon.impl.UpdateThread.run(UpdateThread.java:35)