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Unexpected error while validating "MyTaskBean.java" #197

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago 
What steps will reproduce the problem?
1. While running GPE

MyTaskBean.java is a java source file in a GWT project.

What version of the product are you using? On what operating system?

Eclipse 4.2.2, GEP 3.2.0

Please provide any additional information below.

I got this stack trace:

!ENTRY com.google.gdt.eclipse.appengine.rpc 4 0 2013-05-06 10:17:16.880
!MESSAGE Unexpected error while validating MyTaskBean.java
!STACK 0
java.lang.NullPointerException
    at com.google.gdt.eclipse.appengine.rpc.validators.JavaCompilationParticipant.buildStarting(JavaCompilationParticipant.java:83)
    at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.notifyParticipants(AbstractImageBuilder.java:566)
    at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:288)
    at org.eclipse.jdt.internal.core.builder.IncrementalImageBuilder.build(IncrementalImageBuilder.java:134)
    at org.eclipse.jdt.internal.core.builder.JavaBuilder.buildDeltas(JavaBuilder.java:265)
    at org.eclipse.jdt.internal.core.builder.JavaBuilder.build(JavaBuilder.java:193)
    at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:726)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239)
    at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295)
    at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:351)
    at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:374)
    at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143)
    at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)

Original issue reported on code.google.com by udo.wal...@abas.de on 7 May 2013 at 9:23

GoogleCodeExporter commented 8 years ago 
I'm seeing a lot of these errors in my project too.  I don't even have the 
AppEngine SDK installed - is this perhaps why it happens?

Original comment by carch...@gmail.com on 11 Jul 2013 at 7:51

GoogleCodeExporter commented 8 years ago 
Hi,
I also see a lot of these using Eclipse 3.8 or Eclipse 4.3.1.

For instance, just got this one:

eclipse.buildId=M20130131-0800
java.version=1.6.0_20
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=fr_FR
Framework arguments:  -Xms384m -Xmx1024m -XX:MaxPermSize=256m -showlocation
Command-line arguments:  -os win32 -ws win32 -arch x86 -Xms384m -Xmx1024m 
-XX:MaxPermSize=256m -showlocation

Error
Wed Dec 11 18:41:01 CET 2013
Unexpected error while validating CloseAction.java

java.lang.NullPointerException
    at com.google.gdt.eclipse.appengine.rpc.validators.JavaCompilationParticipant.buildStarting(JavaCompilationParticipant.java:83)
    at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.notifyParticipants(AbstractImageBuilder.java:566)
    at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:288)
    at org.eclipse.jdt.internal.core.builder.BatchImageBuilder.build(BatchImageBuilder.java:60)
    at org.eclipse.jdt.internal.core.builder.JavaBuilder.buildAll(JavaBuilder.java:254)
    at org.eclipse.jdt.internal.core.builder.JavaBuilder.build(JavaBuilder.java:173)
    at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:726)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239)
    at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295)
    at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:351)
    at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:374)
    at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143)
    at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

Is anybody looking into this issue ????

There are currently 163 open issues, of which 47 including this one are 
unaccounted yet. Seeing this one is 6 months old, I would think someone would 
have looked into it already, or given some advice as to the possible cause of 
this kind of error ?

Original comment by ldena...@gmail.com on 11 Dec 2013 at 5:52

GoogleCodeExporter commented 8 years ago 
Also seeing a lot of these while building the same, multi-module Maven GWT 
project:

eclipse.buildId=M20130131-0800
java.version=1.6.0_20
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=fr_FR
Framework arguments:  -Xms384m -Xmx1024m -XX:MaxPermSize=256m -showlocation
Command-line arguments:  -os win32 -ws win32 -arch x86 -Xms384m -Xmx1024m 
-XX:MaxPermSize=256m -showlocation

Error
Wed Dec 11 18:44:06 CET 2013
Unexpected error while validating package-info.java

java.lang.NullPointerException
    at com.google.gdt.eclipse.appengine.rpc.validators.JavaCompilationParticipant.buildStarting(JavaCompilationParticipant.java:83)
    at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.notifyParticipants(AbstractImageBuilder.java:566)
    at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:288)
    at org.eclipse.jdt.internal.core.builder.BatchImageBuilder.build(BatchImageBuilder.java:60)
    at org.eclipse.jdt.internal.core.builder.JavaBuilder.buildAll(JavaBuilder.java:254)
    at org.eclipse.jdt.internal.core.builder.JavaBuilder.build(JavaBuilder.java:173)
    at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:726)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239)
    at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295)
    at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:351)
    at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:374)
    at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143)
    at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

Using Eclipse 3.8.2 with GPE 3.2.3.v201304260926-rel-r42
(I believe this is the latest release f GPE available for the Juno Eclipse 
branch)

Original comment by ldena...@gmail.com on 11 Dec 2013 at 6:03

GoogleCodeExporter commented 8 years ago 
Could you guys update to the latest version of GPE? The current version is 
3.4.2. We no longer ship the appengine.rpc plugin at all, so this error should 
go away. Could you try updating?

Original comment by rdayal@google.com on 11 Dec 2013 at 6:36

GoogleCodeExporter commented 8 years ago 
Hi and many thanks for the quick reply.

I confirm that upgrading to version 3.4.2 of the GPE solved these issues.

Many thanks for your help!

Original comment by ldena...@gmail.com on 20 Dec 2013 at 12:14

GoogleCodeExporter commented 8 years ago

Original comment by rdayal@google.com on 20 Dec 2013 at 9:05