Description Tomasz Zarna 2010-09-17 06:51:46 EDT

I20100915-2024

What steps will reproduce the problem?
1. Checkout the following project into your workspace: 
* org.eclipse.compare 
* org.eclipse.compare.core
* org.eclipse.core.runtime
* org.eclipse.equinox.common
* org.eclipse.jface
* org.eclipse.jface.text
* org.eclipse.text
2. Import project from the attached zip
3. Open CompareMainRoutine
4. Try to fix the errors

You should get this:

-- Error Details --
Date: Fri Sep 17 12:20:06 CEST 2010
Message: Exception occurred during problem detection:----------------------------------- SOURCE BEGIN -------------------------------------


import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

import org.eclipse.compare.CompareConfiguration;
import org.eclipse.compare.contentmergeviewer.ITokenComparator;
import org.eclipse.compare.contentmergeviewer.TextMergeViewer;
import org.eclipse.compare.contentmergeviewer.TokenComparator;
import org.eclipse.compare.internal.MergeViewerContentProvider;
import org.eclipse.compare.internal.Utilities;
import org.eclipse.compare.internal.merge.DocumentMerger;
import org.eclipse.compare.internal.merge.DocumentMerger.IDocumentMergerInput;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.IDocument;

public class CompareMainRoutine {

public static void main(String[] args) {
CompareMainRoutine routine = new CompareMainRoutine();

routine.findDiff(".classpath", ".project");
}

public CompareMainRoutine() {
}

public class DiffDataStructure {

/** Delete type of difference - a portion of a file was removed in the other */
public static final int DELETE = 0;

/** Add type of difference - a portion of a file was added in the other */
public static final int ADD = 1;

/** Change type of difference - a portion of a file was changed in the other */
public static final int CHANGE = 2;

public int type = 0;
public int firstStart = 0; // start line number of subsequence in oldVersion
public int firstEnd = 0; // end line number of subsequence in newVersion
public int secondStart = 0; // start line number of subsequence in newVersion
public int secondEnd = 0; // end line number of subsequence in newVersion
}

public static void findDiff(String oldVersion, String newVersion) {
// The following are needed
// 1. Read in the two before and after strings
final String before;
final String after;
try {
before = Utilities.readString(new FileInputStream(new File(oldVersion)), "cp1250");
after = Utilities.readString(new FileInputStream(new File(newVersion)), "cp1250");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

// 2. Run the appropriate string comparison procedure from eclipse compare

DocumentMerger merger = new DocumentMerger(new IDocumentMergerInput() {
@Override
public ITokenComparator createTokenComparator(String line) {
return new TokenComparator(line);
}
@Override
public CompareConfiguration getCompareConfiguration() {
return null;
}
@Override
public IDocument getDocument(char contributor) {
switch (contributor) {
case MergeViewerContentProvider.LEFT_CONTRIBUTOR:
return new Document(before);
case MergeViewerContentProvider.RIGHT_CONTRIBUTOR:
return new Document(after);
}
return null;
}
@Override
public int getHunkStart() {
return 0;
}
@Override
public Position getRegion(char contributor) {
switch (contributor) {
case MergeViewerContentProvider.LEFT_CONTRIBUTOR:
return fLeft.getRegion();
case MergeViewerContentProvider.RIGHT_CONTRIBUTOR:
return fRight.getRegion();
}
return null;
}
@Override
public boolean isHunkOnLeft() {
return false;
}
@Override
public boolean isIgnoreAncestor() {
return true;
}
@Override
public boolean isPatchHunk() {
return false;
}
@Override
public boolean isShowPseudoConflicts() {
return false;
}
@Override
public boolean isThreeWay() {
return false;
}
@Override
public boolean isPatchHunkOk() {
return true;
}
});

try {
merger.doDiff();
} catch (CoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}


// 3. Output the results in a format compatible with the above data structure, i.e., DiffDataStructure
}
}

----------------------------------- SOURCE END -------------------------------------
Severity: Error
Product: Eclipse SDK 3.7.0.v201009152024 (org.eclipse.sdk.ide)
Plugin: org.eclipse.jdt.core
Session Data:
eclipse.buildId=I20100915-2024
java.version=1.6.0_17
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_CA
Framework arguments:  -XX:+HeapDumpOnOutOfMemoryError -Xmx1024m -XX:MaxPermSize=256m
Command-line arguments:  -os win32 -ws win32 -arch x86 -data c:\workspace\eclipse\team\dev.eclipse.org_HEAD_extssh -XX:+HeapDumpOnOutOfMemoryError -Xmx1024m -XX:MaxPermSize=256m


Exception Stack Trace:
java.lang.IllegalArgumentException: info cannot be null
at org.eclipse.jdt.internal.compiler.codegen.StackMapFrame.addStackItem(StackMapFrame.java:81)
at org.eclipse.jdt.internal.compiler.ClassFile.traverse(ClassFile.java:4489)
at org.eclipse.jdt.internal.compiler.ClassFile.generateStackMapTableAttribute(ClassFile.java:3336)
at org.eclipse.jdt.internal.compiler.ClassFile.completeCodeAttribute(ClassFile.java:1161)
at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.generateCode(AbstractMethodDeclaration.java:245)
at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.generateCode(AbstractMethodDeclaration.java:179)
at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.generateCode(TypeDeclaration.java:542)
at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.generateCode(TypeDeclaration.java:611)
at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.generateCode(CompilationUnitDeclaration.java:361)
at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:889)
at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:928)
at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:202)
at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:268)
at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.makeConsistent(ReconcileWorkingCopyOperation.java:190)
at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:89)
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:1244)
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)

Followed by bunch of "Problems occurred when invoking code from plug-in: "org.eclipse.jdt.ui".", "Error in JDT Core during reconcile" and "Error in JDT Core during AST creation" errors.