Unknown Bug 01: about quick-fix-scout HOT 3 CLOSED

Beginning of the stack trace:

!ENTRY org.eclipse.jdt.core 4 4 2011-12-08 15:25:01.577
!MESSAGE JavaBuilder handling CoreException
!STACK 1
org.eclipse.core.runtime.CoreException: Could not write file: 
C:\Users\Kivanc\Java-Projects\runtime-EclipseApplication\DO_NOT_DELETE_Speculati
on_Crystal_222882905\bin\GBP_MultipleInheritance$D.class.
    at org.eclipse.core.internal.filesystem.Policy.error(Policy.java:55)
    at org.eclipse.core.internal.filesystem.local.LocalFile.openOutputStream(LocalFile.java:391)
    at org.eclipse.core.internal.localstore.FileSystemResourceManager.write(FileSystemResourceManager.java:1101)
    at org.eclipse.core.internal.resources.File.internalSetContents(File.java:321)
    at org.eclipse.core.internal.resources.File.setContents(File.java:360)
    at org.eclipse.core.internal.resources.File.setContents(File.java:464)
    at org.eclipse.jdt.internal.core.builder.IncrementalImageBuilder.writeClassFileContents(IncrementalImageBuilder.java:830)
    at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.writeClassFile(AbstractImageBuilder.java:823)
    at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.acceptResult(AbstractImageBuilder.java:187)
    at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:508)
    at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:364)
    at org.eclipse.jdt.internal.core.builder.IncrementalImageBuilder.compile(IncrementalImageBuilder.java:329)
    at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:301)
    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:728)
    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.basicBuild(BuildManager.java:256)
    at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:394)
    at org.eclipse.core.internal.resources.Project$1.run(Project.java:618)
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
    at org.eclipse.core.internal.resources.Project.internalBuild(Project.java:597)
    at org.eclipse.core.internal.resources.Project.build(Project.java:114)
    at edu.washington.cs.util.eclipse.BuilderUtility.build(BuilderUtility.java:149)
    at edu.washington.cs.quickfix.speculation.calc.SpeculationCalculator.buildShadowProject(SpeculationCalculator.java:1057)
    at edu.washington.cs.quickfix.speculation.calc.SpeculationCalculator.applyUndo(SpeculationCalculator.java:734)
    at edu.washington.cs.quickfix.speculation.calc.SpeculationCalculator.processProposal(SpeculationCalculator.java:668)
    at edu.washington.cs.quickfix.speculation.calc.SpeculationCalculator.processCompilationError(SpeculationCalculator.java:595)
    at edu.washington.cs.quickfix.speculation.calc.SpeculationCalculator.processCompilationErrors(SpeculationCalculator.java:514)
    at edu.washington.cs.quickfix.speculation.calc.SpeculationCalculator.doSpeculativeAnalysis(SpeculationCalculator.java:458)
    at edu.washington.cs.quickfix.speculation.calc.SpeculationCalculator.doWork(SpeculationCalculator.java:354)
    at edu.washington.cs.threading.MortalThread.run(MortalThread.java:88)
Caused by: java.io.FileNotFoundException: 
C:\Users\Kivanc\Java-Projects\runtime-EclipseApplication\DO_NOT_DELETE_Speculati
on_Crystal_222882905\bin\GBP_MultipleInheritance$D.class (The requested 
operation cannot be performed on a file with a user-mapped section open)
    at java.io.FileOutputStream.open(Native Method)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at org.eclipse.core.internal.filesystem.local.LocalFile.openOutputStream(LocalFile.java:382)
    ... 36 more

Duplicate of issue 20