NPE in GAE Eclipse toolkit related to a JDO Annotation in Scala
Migrated from http://lampsvn.epfl.ch/trac/scala/ticket/2614
Reporter gwatkins
This was the class that was on the screen at the time.
I was using GAE SDK 1.2.6, SCALA-2.8.0-LATEST, and eclipse 3.5 MAC OS/X on Snow Leopard
package com.dynafocus.test
import com.google.appengine.api.datastore._
import java.util._
import javax.jdo.annotations._
import scala.reflect._
@PersistenceCapable(identityType = IdentityType.APPLICATION)
class TWO {
@PrimaryKey @Persistent( valueStrategy = IdGeneratorStrategy.IDENTITY )
@BeanProperty var id:java.lang.Long = _
}
============ Stack Trace =============
java.lang.NullPointerException at com.google.appengine.eclipse.core.validators.java.JavaCompilationParticipant.validateCompilationUnit(JavaCompilationParticipant.java:73)
at com.google.appengine.eclipse.core.validators.java.JavaCompilationParticipant.reconcile(JavaCompilationParticipant.java:176)
at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation$1.run(ReconcileWorkingCopyOperation.java:257)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.notifyParticipants(ReconcileWorkingCopyOperation.java:244)
at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:94)
at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:728)
at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:788)
at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1242)
at scala.tools.eclipse.javaelements.ScalaSourceFile.reconcile(ScalaSourceFile.scala:49)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:126)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.access$0(JavaReconcilingStrategy.java:108)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:89)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:87)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.initialReconcile(JavaReconcilingStrategy.java:178)
at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.initialReconcile(CompositeReconcilingStrategy.java:114)
at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.initialReconcile(JavaCompositeReconcilingStrategy.java:133)
at org.eclipse.jface.text.reconciler.MonoReconciler.initialProcess(MonoReconciler.java:105)
at org.eclipse.jdt.internal.ui.text.JavaReconciler.initialProcess(JavaReconciler.java:398)
at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:173)
Reporter gwatkins
This was the class that was on the screen at the time.
I was using GAE SDK 1.2.6, SCALA-2.8.0-LATEST, and eclipse 3.5 MAC OS/X on Snow Leopard
package com.dynafocus.test
import com.google.appengine.api.datastore._
import java.util._
import javax.jdo.annotations._
import scala.reflect._
@PersistenceCapable(identityType = IdentityType.APPLICATION)
class TWO {
@PrimaryKey @Persistent( valueStrategy = IdGeneratorStrategy.IDENTITY )
@BeanProperty var id:java.lang.Long = _
}
============ Stack Trace =============
java.lang.NullPointerException at com.google.appengine.eclipse.core.validators.java.JavaCompilationParticipant.validateCompilationUnit(JavaCompilationParticipant.java:73)
at com.google.appengine.eclipse.core.validators.java.JavaCompilationParticipant.reconcile(JavaCompilationParticipant.java:176)
at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation$1.run(ReconcileWorkingCopyOperation.java:257)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.notifyParticipants(ReconcileWorkingCopyOperation.java:244)
at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:94)
at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:728)
at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:788)
at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1242)
at scala.tools.eclipse.javaelements.ScalaSourceFile.reconcile(ScalaSourceFile.scala:49)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:126)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.access$0(JavaReconcilingStrategy.java:108)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:89)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:87)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.initialReconcile(JavaReconcilingStrategy.java:178)
at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.initialReconcile(CompositeReconcilingStrategy.java:114)
at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.initialReconcile(JavaCompositeReconcilingStrategy.java:133)
at org.eclipse.jface.text.reconciler.MonoReconciler.initialProcess(MonoReconciler.java:105)
at org.eclipse.jdt.internal.ui.text.JavaReconciler.initialProcess(JavaReconciler.java:398)
at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:173)
Leave a comment
on 2009-11-11 22:50 *
By
I'll need some help from GAE users on this one.
The GAE tooling is making assumptions about compilation units which are true for Java but not for Scala ... it would be enormously helpful if someone could investigate and discover exactly what that is and then hopefully I'll be able to accommodate it.
The GAE tooling is making assumptions about compilation units which are true for Java but not for Scala ... it would be enormously helpful if someone could investigate and discover exactly what that is and then hopefully I'll be able to accommodate it.
Updating tickets (#1000069, #1000195, #1000213, #1000223, #1000006, #1000021, #1000038, #1000048, #1000051, #1000052, #1000075, #1000103, #1000109, #1000115, #1000119, #1000156, #1000186, #1000207, #1000238, #1000262, #1000263, #380, #389, #683, #1238, #1331, #1635, #1645, #1715, #1729, #1744, #1783, #1839, #1869, #1885, #1890, #1902, #1918, #1919, #1924, #1925, #1946, #1964, #1991, #2131, #2233, #2342, #2348, #2408, #2459, #2499, #2523, #2572, #2582, #2602, #2614, #2615, #2675, #2710, #2745, #2763, #2816, #2830, #2834, #2878, #2879, #2887, #2888, #2901, #2911, #2912, #2922, #2937, #2938, #2942, #2951, #2955, #2957, #2961, #2964, #2965, #2974, #2975, #2989, #2990, #3002, #3055, #3070, #3087, #3135, #3139, #3173, #3182, #3184, #3200, #3213, #3214, #3221, #3243, #3251)
