ArrayIndexOutOfBoundsException in ASTConverter.isPrimitiveType

Migrated from http://lampsvn.epfl.ch/trac/scala/ticket/2785
Reporter boia01
I get the following stacktrace in the Error Log window (even after doing Project -> Clean All)

org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.ArrayIndexOutOfBoundsException: 0)
	at org.eclipse.swt.SWT.error(SWT.java:3884)
	at org.eclipse.swt.SWT.error(SWT.java:3799)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:137)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3468)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3115)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1287)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
	at org.eclipse.jdt.core.dom.ASTConverter.isPrimitiveType(ASTConverter.java:3540)
	at org.eclipse.jdt.core.dom.ASTConverter.convertType(ASTConverter.java:3117)
	at org.eclipse.jdt.core.dom.ASTConverter.convert(ASTConverter.java:2663)
	at org.eclipse.jdt.core.dom.ASTConverter.convert(ASTConverter.java:1264)
	at scala.tools.eclipse.contribution.weaving.jdt.core.DOMAspect.ajc$around$scala_tools_eclipse_contribution_weaving_jdt_core_DOMAspect$1$3b9eae81(DOMAspect.aj:138)
	at org.eclipse.jdt.core.dom.ASTParser.internalCreateAST(ASTParser.java:801)
	at org.eclipse.jdt.core.dom.ASTParser.createAST(ASTParser.java:657)
	at org.eclipse.jdt.internal.ui.text.correction.ASTResolving.createQuickFixAST(ASTResolving.java:1126)
	at org.eclipse.jdt.internal.ui.text.correction.AssistContext.getASTRoot(AssistContext.java:115)
	at org.eclipse.jdt.internal.ui.text.java.hover.ProblemHover$ProblemInfo.getJavaAnnotationFixes(ProblemHover.java:212)
	at org.eclipse.jdt.internal.ui.text.java.hover.ProblemHover$ProblemInfo.getCompletionProposals(ProblemHover.java:192)
	at org.eclipse.jdt.internal.ui.text.java.hover.AbstractAnnotationHover$AnnotationInformationControl.deferredCreateContent(AbstractAnnotationHover.java:275)
	at org.eclipse.jdt.internal.ui.text.java.hover.AbstractAnnotationHover$AnnotationInformationControl.setInput(AbstractAnnotationHover.java:181)
	at org.eclipse.jface.text.AbstractInformationControlManager.internalShowInformationControl(AbstractInformationControlManager.java:1170)
	at org.eclipse.jface.text.AbstractInformationControlManager.presentInformation(AbstractInformationControlManager.java:1139)
	at org.eclipse.jface.text.AbstractHoverInformationControlManager.presentInformation(AbstractHoverInformationControlManager.java:902)
	at org.eclipse.jface.text.TextViewerHoverManager.doPresentInformation(TextViewerHoverManager.java:243)
	at org.eclipse.jface.text.TextViewerHoverManager$5.run(TextViewerHoverManager.java:233)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
	... 23 more

Configuration information:
Scala Eclipse Plugin 2.8.0.r20062-b20091209043719

eclipse.buildId=M20090917-0800
java.version=1.6.0_17
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Framework arguments:  -product org.eclipse.epp.package.java.product
Command-line arguments:  -os linux -ws gtk -arch x86 -product org.eclipse.epp.package.java.product

Leave a comment

on 2009-12-10 01:15 *

This will be caused by a specific Scala construct in one of your sources. If you're able to narrow the issue down to a simple reproducible example that would be very helpful.

on 2009-12-10 02:01 *

By tracImporter

Status changed from New to Invalid

Trac author: boia01

on 2009-12-10 02:02 *

By tracImporter

Trac author: boia01
Can't reproduce anymore. I'll reopen if I can reproduce. I didn't know if the stacktrace would be useful on its own right without a reproducible example.

on 2009-12-10 02:02 *

By tracImporter

Closed As: worksforme

on 2010-06-20 00:33 *

By Anonymous

To reproduce:

Make use of a java class from a jar file in your class path.

in the .scala file make sure that the class is used in the code but not imported. (no import statement for the used java class.)
Perform ctrl+space at the end of the java class. (mouse click directly after the java class name and press ctrl+space)
Example:

package org.app.control
//note no imports.
class Activator extends AbstractUIPlugin<- ctrl+space here{
override def start(context : BundleContext) {
super.start(context)
ConsultantActivator.plugin = this
}
}

See the error in the problems view in eclipse IDE.

on 2010-06-20 00:41 *

By chewetson

Version set to Scala 2.8.0

Status changed from Invalid to New

I get this error and can reproduce (see my previous, "not so anonymous anymore" comment) therefore reopening it ..

on 2010-06-20 00:44 *

Status changed from New to Accepted

on 2010-06-20 00:44 *

By chewetson

in fact when i hover the cursor over a java class that has not been imported i get this exception (not UI error message just a stactrace in log file)

on 2010-11-02 22:48 *

By Matthew Farwell

This is reproducible. Using the following scala file:

package uk.co.farwell

object Main {
def main(args: Array[String]) = {
println("Hello world")
}
}

class Activator extends AbstractUIPlugin{
override def start(context : BundleContext) {
super.start(context)
ConsultantActivator.plugin = this
}
}

Hovering over the AbstractUIPlugin (line 10) causes the ArrayOutOfBoundsException (see ArrayOutOfBoundsException.stacktrace.txt). This looks like a similar problem to #1885, the offending method is:

protected boolean isPrimitiveType(char[] name) {
switch(name[0]) {
case 'i' :
if (name.length == 3 && name[1] == 'n' && name[2] == 't') {
return true;
}
return false;

and name is an empty string, therefore ArrayOutOfBoundsException

If, however, the auto-completion is attempted after the AbstractUIPlugin, then we get an java.lang.UnsupportedOperationException, (See UnsupportedOperationException.stacktrace.txt).

This is due to ScalaCompletionEngine.acceptSymbol

def acceptSymbol(sym : compiler.Symbol, tpe0 : compiler.Type, accessible : Boolean, inherited : Boolean, viaView : compiler.Symbol) {
// some lines ...
val sig0 = encodedJavaType(tpe).getSignature.replace('/', '.')
val sig = if (sig0.startsWith("(")) sig0 else "()"+sig0

val jtOwner = encodedJavaType(sym.owner.tpe)
if (jtOwner != JType.UNKNOWN)
proposal.setDeclarationSignature(jtOwner.getSignature.replace('/', '.').toArray)

encodedJavaType(tpe) returns JType.UNKNOWN, therefore we get an UnsupportedOperationException from JType.getSIgnature(). The call needs to be protected.

Using:

eclipse.buildId=M20100211-1343
java.version=1.6.0_11
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=fr_CH
Framework arguments: -product org.eclipse.sdk.ide
Command-line arguments: -product org.eclipse.sdk.ide -data C:\Developpement\scala-ide\workspace/../runtime-scala-ide -dev file:C:/Developpement/scala-ide/workspace/.metadata/.plugins/org.eclipse.pde.core/Scala-IDE/dev.properties -os win32 -ws win32 -arch x86 -clean -console

on 2010-11-02 22:49 *

By Matthew Farwell

Attachment ArrayOutOfBoundsException.stacktrace.txt added

file:dbg1xu5Sir36VMeJe5cbCb: ArrayOutOfBoundsException.stacktrace.txt

on 2010-11-02 22:49 *

By Matthew Farwell

Attachment UnsupportedOperationException.stacktrace.txt added

file:dbn7J65Sir36VMeJe5cbCb: UnsupportedOperationException.stacktrace.txt

on 2010-11-03 23:34 *

By Matthew Farwell

Attachment 0001-re-2785-ArrayIndexOutOfBoundsException-in-ASTConvert.patch added

file:aNX05I55ir34PjeJe5cbLA: Patch for UnsupportedOperationException

on 2010-11-08 00:26 *

By Matthew Farwell

Attachment 0002-re-2785-ArrayIndexOutOfBoundsException-in-ASTConvert.patch added

file:aziVGY6R4r37gWeJe5cbLA: second patch

on 2010-11-08 00:26 *

By Matthew Farwell

Attachment 0003-re-2785-ArrayIndexOutOfBoundsException-in-ASTConvert.patch added

file:azBAtG6R4r37gWeJe5cbLA: third patch

on 2010-11-08 00:28 *

By Matthew Farwell

Status changed from Accepted to Test

Ready to test.

on 2010-11-09 15:31 *

By David Bernard

Assigned to changed from milessabin to david.bernard.31

I'll check, and apply your (Matthew) path.

Thanks

on 2010-11-09 16:58 *

Actually, I'm just waiting on a signed Scala CLA from Matthew before applying ...

on 2010-11-09 17:22 *

By David Bernard

Status changed from Test to Fixed

(In revision:015cf198263f2a48f5453efb80c11fb09651ffd2) adapt patch from Matthew Farwell
Fix #2785 ArrayIndexOutOfBoundsException in ASTConverter.isPrimitiveType

Branch:master

on 2010-11-09 17:46 *

By David Bernard

Sorry Miles,

I didn't saw your message before push. The patch was apply by copy/paste adaptation as it can't be "git am/apply" as is (mismatch on line position). I also clean import for ASTConverterAspect. And test before/after.

on 2010-11-09 17:52 *

Not a big problem, but we do need to make sure that all the paperwork gets done.

on 2010-11-26 23:14 *

By David Bernard

(In revision:8cab00e000139f84bf1efb2d29ce139f08414fdb) adapt patch from Matthew Farwell
Fix #2785 ArrayIndexOutOfBoundsException in ASTConverter.isPrimitiveType

Branch:wip_exp_backport

on 2010-11-27 12:11 *

By David Bernard

(In revision:52ec63eb992e6f8008fee47946810036fc463b91) adapt patch from Matthew Farwell
Fix #2785 ArrayIndexOutOfBoundsException in ASTConverter.isPrimitiveType

Branch:wip_experiment

on 2010-12-01 03:31 *

By David Bernard

(In revision:c8a5f49f3725baa6a3ecc25c77a43536ef331490) try to fix (at least log via Defensive) definition of invalid source range start/end (may be some bugs could be introducted instead of fixing, Can someone review (especially comments and application of -1) ?
see #2785, see #1000158

Branch:wip_exp_backport

on 2010-12-01 03:37 *

By David Bernard

I also rewrite the patch in branch wip_exp_backport and remove the ASTConverterAspect.aj
http://www.assembla.com/code/scala-ide/git/changesets/82e6b9fd5aa1596c675d82484bea191466e68390

Name	Size
ArrayOutOfBoundsException.stacktrace.txt	4.07 KB	Added by Matthew Farwell on 2010-11-02 - Upload new version

UnsupportedOperationException.stacktrace.txt	8.69 KB	Added by Matthew Farwell on 2010-11-02 - Upload new version

0001-re-2785-ArrayIndexOutOfBoundsException-in-ASTConvert.patch	1.23 KB	Added by Matthew Farwell on 2010-11-03 - Upload new version

0003-re-2785-ArrayIndexOutOfBoundsException-in-ASTConvert.patch	1.9 KB	Added by Matthew Farwell on 2010-11-08 - Upload new version

0002-re-2785-ArrayIndexOutOfBoundsException-in-ASTConvert.patch	5.66 KB	Added by Matthew Farwell on 2010-11-08 - Upload new version

Drop the files anywhere in this page to upload them as attachments.

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