IntelliJad : exceptions using IDEA X

Seems like IntelliJad is not compatible with the new indexing in IDEA

net.stevechaloner.intellijad.vfs.MemoryVirtualFile cannot be cast to com.intellij.openapi.vfs.newvfs.NewVirtualFile: net.stevechaloner.intellijad.vfs.MemoryVirtualFile cannot be cast to com.intellij.openapi.vfs.newvfs.NewVirtualFile
java.lang.ClassCastException: net.stevechaloner.intellijad.vfs.MemoryVirtualFile cannot be cast to com.intellij.openapi.vfs.newvfs.NewVirtualFile
 at com.intellij.history.integration.LocalHistoryEventDispatcher.a(LocalHistoryEventDispatcher.java:95)
 at com.intellij.history.integration.LocalHistoryEventDispatcher.fileCreated(LocalHistoryEventDispatcher.java:86)
 at sun.reflect.GeneratedMethodAccessor337.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at com.intellij.util.EventDispatcher.dispatch(EventDispatcher.java:87)
 at com.intellij.util.EventDispatcher.access$100(EventDispatcher.java:33)
 at com.intellij.util.EventDispatcher$1.invoke(EventDispatcher.java:64)
 at $Proxy13.fileCreated(Unknown Source)
 at net.stevechaloner.intellijad.vfs.MemoryVirtualFileSystem.fireFileCreated(MemoryVirtualFileSystem.java:104)
 at net.stevechaloner.intellijad.vfs.MemoryVirtualFileSystem.addFile(MemoryVirtualFileSystem.java:88)
 at net.stevechaloner.intellijad.vfs.MemoryVirtualFileSystem.createChildDirectory(MemoryVirtualFileSystem.java:219)
 at net.stevechaloner.intellijad.vfs.MemoryVirtualFileSystem.getFileForPackage(MemoryVirtualFileSystem.java:284)
 at net.stevechaloner.intellijad.vfs.MemoryVirtualFileSystem.getFileForPackage(MemoryVirtualFileSystem.java:260)
 at net.stevechaloner.intellijad.decompilers.MemoryDecompiler.insertIntoFileSystem(MemoryDecompiler.java:168)
 at net.stevechaloner.intellijad.decompilers.MemoryDecompiler.processOutput(MemoryDecompiler.java:111)
 at net.stevechaloner.intellijad.decompilers.MemoryDecompiler$1.execute(MemoryDecompiler.java:76)
 at net.stevechaloner.intellijad.decompilers.AbstractDecompiler$1$1.execute(AbstractDecompiler.java:67)
 at net.stevechaloner.intellijad.decompilers.AbstractDecompiler.decompile(AbstractDecompiler.java:258)
 at net.stevechaloner.intellijad.IntelliJad.decompile(IntelliJad.java:275)
 at net.stevechaloner.intellijad.actions.NavigationListener$1$2.execute(NavigationListener.java:101)
 at net.stevechaloner.intellijad.actions.NavigationListener.fileOpened(NavigationListener.java:154)
 at sun.reflect.GeneratedMethodAccessor49.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at com.intellij.util.messages.impl.MessageBusConnectionImpl.deliverMessage(MessageBusConnectionImpl.java:101)
 at com.intellij.util.messages.impl.MessageBusImpl.doPumpMessages(MessageBusImpl.java:183)
 at com.intellij.util.messages.impl.MessageBusImpl.doPumpMessages(MessageBusImpl.java:188)
 at com.intellij.util.messages.impl.MessageBusImpl.pumpMessages(MessageBusImpl.java:175)
 at com.intellij.util.messages.impl.MessageBusImpl.pumpMessages(MessageBusImpl.java:172)
 at com.intellij.util.messages.impl.MessageBusImpl.sendMessage(MessageBusImpl.java:167)
 at com.intellij.util.messages.impl.MessageBusImpl.access$000(MessageBusImpl.java:40)
 at com.intellij.util.messages.impl.MessageBusImpl$2.invoke(MessageBusImpl.java:106)
 at $Proxy78.fileOpened(Unknown Source)
 at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl3(FileEditorManagerImpl.java:610)
 at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl$5.run(FileEditorManagerImpl.java:475)
 at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:103)
 at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:86)
 at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:78)
 at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl2(FileEditorManagerImpl.java:473)
 at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileWithProviders(FileEditorManagerImpl.java:467)
 at com.intellij.openapi.fileEditor.ex.FileEditorManagerEx.openFile(FileEditorManagerEx.java:109)
 at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl$7.run(FileEditorManagerImpl.java:716)
 at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:103)
 at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:86)
 at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:78)
 at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openEditor(FileEditorManagerImpl.java:713)
 at com.intellij.openapi.fileEditor.OpenFileDescriptor.navigateInAnyFileEditor(OpenFileDescriptor.java:133)
 at com.intellij.openapi.fileEditor.OpenFileDescriptor.navigateInEditor(OpenFileDescriptor.java:118)
 at com.intellij.openapi.fileEditor.OpenFileDescriptor.navigate(OpenFileDescriptor.java:105)
 at com.intellij.psi.impl.PsiElementBase.navigate(PsiElementBase.java:125)
 at com.intellij.codeInsight.navigation.actions.GotoDeclarationAction.invoke(GotoDeclarationAction.java:85)
 at com.intellij.codeInsight.actions.CodeInsightAction$1$1.run(CodeInsightAction.java:60)
 at com.intellij.codeInsight.actions.CodeInsightAction$1.run(CodeInsightAction.java:67)
 at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:110)
 at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:86)
 at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:78)
 at com.intellij.codeInsight.actions.CodeInsightAction.actionPerformedImpl(CodeInsightAction.java:54)
 at com.intellij.codeInsight.actions.CodeInsightAction.actionPerformed(CodeInsightAction.java:40)
 at com.intellij.openapi.keymap.impl.IdeMouseEventDispatcher.dispatchMouseEvent(IdeMouseEventDispatcher.java:180)
 at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:504)
 at com.intellij.ide.IdeEventQueue.b(IdeEventQueue.java:406)
 at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:370)
 at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
 at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
 at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
 at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
 at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
 at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)