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Bug 325116

Summary:

Cannot open the "EPackage Registry" view

Product:

[Modeling] MoDisco

Reporter:

Gregoire Dupe <gdupe>

Component:

Infrastructure

Assignee:

Nicolas Bros <nicolas.bros>

Status:

CLOSED FIXED

QA Contact:

Severity:

normal

Priority:

CC:

Ed.Merks, fabien.giquel, hugo.bruneliere, Kenn.Hussey, modisco.web-inbox, nicolas.bros

Version:

0.8.0

Flags:

nicolas.bros: helios+
Kenn.Hussey: pmc_approved+
Ed.Merks: pmc_approved+
gdupe: review+
fabien.giquel: review+

Target Milestone:

0.8.1

Hardware:

OS:

Windows XP

Whiteboard:

Attachments:

Description	Flags
patch	none

Description Gregoire Dupe

2010-09-13 10:17:51 EDT

Hi,

I’m not able to open the "EPackage Registry" view: I get the following error:

eclipse.buildId=I20100608-0911
java.version=1.6.0_20
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=fr_FR
Command-line arguments:  -os win32 -ws win32 -arch x86


Error
Mon Sep 13 16:08:08 CEST 2010
An internal error occurred during: "Refreshing EPackage Registry View".

java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.gmt.modisco.infra.query.jxpath.JxpathPackage
	at sun.misc.Unsafe.ensureClassInitialized(Native Method)
	at sun.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(Unknown Source)
	at sun.reflect.ReflectionFactory.newFieldAccessor(Unknown Source)
	at java.lang.reflect.Field.acquireFieldAccessor(Unknown Source)
	at java.lang.reflect.Field.getFieldAccessor(Unknown Source)
	at java.lang.reflect.Field.get(Unknown Source)
	at org.eclipse.emf.ecore.plugin.RegistryReader$EPackageDescriptor.getEPackage(RegistryReader.java:274)
	at org.eclipse.emf.ecore.impl.EPackageImpl$1.getEPackage(EPackageImpl.java:168)
	at org.eclipse.emf.ecore.impl.EPackageRegistryImpl.getEPackage(EPackageRegistryImpl.java:133)
	at org.eclipse.gmt.modisco.infra.common.ui.internal.views.PackageRegistryView.preloadRegistry(PackageRegistryView.java:168)
	at org.eclipse.gmt.modisco.infra.common.ui.internal.views.PackageRegistryView.doRefresh(PackageRegistryView.java:299)
	at org.eclipse.gmt.modisco.infra.common.ui.internal.views.AbstractCatalogView$5.run(AbstractCatalogView.java:182)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

Regards,
Grégoire

Comment 1 Nicolas Bros

2010-09-13 10:41:31 EDT

I got almost the same exception, but with "UnsupportedClassVersionError", because I had compiled with Java 6 and run with Java 5.

Comment 2 Nicolas Bros

2010-09-13 10:57:36 EDT

Created attachment 178747 [details]
patch

Here is a patch that catches the exceptions and logs them, so that one single EPackage failing to load doesn't crash the whole view.

Comment 3 Nicolas Bros

2010-09-13 10:59:46 EDT

I committed this on trunk (revision 3024). Should this be applied to branch 0.8 as well?

Comment 4 Gregoire Dupe

2010-09-13 11:53:40 EDT

Hi,

I think that this patch should be applied to branch 0.8.

Regards,
Grégoire

Comment 5 Kenn Hussey

2010-09-14 08:59:08 EDT

Note that, technically, PMC approval is not required to fix issues in a service release (although, depending on the nature of the issue/fix, it's not necessarily a bad idea)...

Comment 6 Nicolas Bros

2010-09-14 09:15:28 EDT

Thank you.

I have committed the patch on branch 0.8 (revision 3044).

Comment 7 Hugo Bruneliere

2010-10-05 05:07:51 EDT

The patch has been successfully applied.