Organize imports broken in NB: "AST must not be null"

If I try to organize imports on the following class I get the exception "AST must not be null".
Issue happens on all scala files, not only the one shown below.

Issue appeared in one of the nightly builds of last week (can't recall which one). Still exists in the latest nightly build.

package com.nezasa.model

class DeadSimpleClass(
  val foo: String,
  val bar: Int
) {

}

Version: Nightly Build
Scala plugin version: 4.0.0.nightly-2_10-201405060521-df6e7d5

Scala compiler version: 2.10.4.v20140209-180020-b66a39653b
Scala library version: 2.10.4.v20140209-180020-b66a39653b
Eclipse version: 4.2.2.v201302041200

.log file attached. scala-ide.log empty (cleaned before I restarted Eclipse and reproduced the issue).

Leave a comment

on 2014-05-06 07:25 *

By afu279489

Attachment screenshot_organize_import.png added

on 2014-05-06 07:29 *

By afu279489

Attachment eclipse.log added

file:azpzOO1par44kJacwqjQWU

on 2014-05-06 12:29 *

By Simon Schäfer

Your log output doesn't show anything specific to the Scala IDE. I think the error is produced by the JDT save action feature. Does the error goes away when you disable the save actions (or at least its organize imports feature)?

on 2014-05-06 12:51 *

By afu279489

Sorry, didn't check the content of the logs. Here is what I get from the event details in the error view:

eclipse.buildId=M20130204-1200
java.version=1.7.0_51
java.vendor=Oracle Corporation
BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_US
Framework arguments:  -product org.eclipse.epp.package.jee.product -keyring /Users/andreas/.eclipse_keyring -showlocation
Command-line arguments:  -os macosx -ws cocoa -arch x86_64 -product org.eclipse.epp.package.jee.product -keyring /Users/andreas/.eclipse_keyring -showlocation

Error
Tue May 06 14:49:05 CEST 2014
Internal Error

java.lang.reflect.InvocationTargetException
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:477)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
	at org.eclipse.ui.internal.WorkbenchWindow$13.run(WorkbenchWindow.java:1679)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:1676)
	at org.eclipse.ui.internal.progress.ProgressManager$RunnableWithStatus.run(ProgressManager.java:1346)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.progress.ProgressManager$5.run(ProgressManager.java:1184)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:180)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4607)
	at org.eclipse.ui.internal.progress.ProgressManager.runInUI(ProgressManager.java:1182)
	at org.eclipse.jdt.ui.actions.OrganizeImportsAction.run(OrganizeImportsAction.java:291)
	at org.eclipse.jdt.ui.actions.OrganizeImportsAction.run(OrganizeImportsAction.java:204)
	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:279)
	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:251)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
	at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:119)
	at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:76)
	at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:231)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:212)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:131)
	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:171)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:277)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:496)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:547)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:368)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.access$0(KeyBindingDispatcher.java:314)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:83)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1074)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4135)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1458)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1481)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1466)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1495)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1491)
	at org.eclipse.swt.widgets.Canvas.sendKeyEvent(Canvas.java:497)
	at org.eclipse.swt.widgets.Control.doCommandBySelector(Control.java:1060)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5587)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
	at org.eclipse.swt.internal.cocoa.NSResponder.interpretKeyEvents(NSResponder.java:68)
	at org.eclipse.swt.widgets.Composite.keyDown(Composite.java:587)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5497)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
	at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:221)
	at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2102)
	at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2299)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5559)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
	at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:5004)
	at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5153)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
	at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3618)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1053)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:942)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
Caused by: java.lang.IllegalArgumentException: AST must not be null
	at org.eclipse.jdt.core.dom.rewrite.ImportRewrite.create(ImportRewrite.java:191)
	at org.eclipse.jdt.ui.CodeStyleConfiguration.createImportRewrite(CodeStyleConfiguration.java:70)
	at org.eclipse.jdt.internal.corext.codemanipulation.StubUtility.createImportRewrite(StubUtility.java:1479)
	at org.eclipse.jdt.internal.corext.codemanipulation.OrganizeImportsOperation.createTextEdit(OrganizeImportsOperation.java:427)
	at org.eclipse.jdt.internal.corext.codemanipulation.OrganizeImportsOperation.run(OrganizeImportsOperation.java:398)
	at org.eclipse.jdt.internal.core.BatchOperation.executeOperation(BatchOperation.java:39)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:728)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
	at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:5204)
	at org.eclipse.jdt.internal.ui.actions.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:106)
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
	... 79 more

on 2014-05-06 12:54 *

By Simon Schäfer

I edited my previous post. Can you please check the JDT save action feature?

on 2014-05-06 13:18 *

By afu279489

hey simon,

I disabled the save actions (Project > Properties > Java Editor > Save Actions) first in the project settings. Same issue exists. Then I disabled the project specific settings and disabled save actions on the workspace (Eclipse > Preferences > Java > Editor > Save Actions). I still have the exception.

on 2014-05-09 07:07 *

By afu279489

Note: I switched now to Eclipse Kepler and the latest NB. With this setup I don't have the issue described above.

Following setup works:
Scala plugin version: 4.0.0.nightly-2_10-201405090509-b9b0607
Scala compiler version: 2.10.4.v20140209-180020-b66a39653b
Scala library version: 2.10.4.v20140209-180020-b66a39653b
Eclipse version: 4.3.2.v20140221-1700

on 2014-05-09 09:55 *

By Simon Schäfer

Status changed from New to Invalid

In this case I'm closing this ticket. Feel free to reopen if the problem comes back

Name	Size
screenshot_organize_import.png	20.7 KB	Added by afu279489 on 2014-05-06 - Upload new version

eclipse.log	15.6 KB	Added by afu279489 on 2014-05-06 - Upload new version

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