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java.lang.NullPointerException: 	at org.eclipse.jdt.internal.core.dom.rewrite.ASTRewriteFlattener.visit(ASTRewriteFlattener.java:917)	at org.eclipse.jdt.core.dom.SingleVariableDeclaration.accept0(SingleVariableDeclaration.java:416)	at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2711)	at org.eclipse.jdt.internal.core.dom.rewrite.ASTRewriteFlattener.visitList(ASTRewriteFlattener.java:181)	at org.eclipse.jdt.internal.core.dom.rewrite.ASTRewriteFlattener.visit(ASTRewriteFlattener.java:757)	at org.eclipse.jdt.core.dom.MethodDeclaration.accept0(MethodDeclaration.java:611)	at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2711)	at org.eclipse.jdt.internal.core.dom.rewrite.ASTRewriteFlattener.visitList(ASTRewriteFlattener.java:181)	at org.eclipse.jdt.internal.core.dom.rewrite.ASTRewriteFlattener.visit(ASTRewriteFlattener.java:1116)	at org.eclipse.jdt.core.dom.TypeDeclaration.accept0(TypeDeclaration.java:453)	at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2711)	at org.eclipse.jdt.internal.core.dom.rewrite.ASTRewriteFormatter.getFormattedResult(ASTRewriteFormatter.java:179)	at org.eclipse.jdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.doTextInsert(ASTRewriteAnalyzer.java:1357)	at org.eclipse.jdt.internal.core.dom.rewrite.ASTRewriteAnalyzer$ListRewriter.rewriteList(ASTRewriteAnalyzer.java:647)	at org.eclipse.jdt.internal.core.dom.rewrite.ASTRewriteAnalyzer$ListRewriter.rewriteList(ASTRewriteAnalyzer.java:802)	at org.eclipse.jdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.rewriteParagraphList(ASTRewriteAnalyzer.java:1175)	at org.eclipse.jdt.internal.core.dom.rewrite.ASTRewriteAnalyzer.visit(ASTRewriteAnalyzer.java:1692)	at org.eclipse.jdt.core.dom.CompilationUnit.accept0(CompilationUnit.java:207)	at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2711)	at org.eclipse.jdt.core.dom.rewrite.ASTRewrite.internalRewriteAST(ASTRewrite.java:302)	at org.eclipse.jdt.core.dom.rewrite.ASTRewrite.rewriteAST(ASTRewrite.java:233)	at gr.uom.java.jdeodorant.refactoring.manipulators.ExtractCloneRefactoring.finalizeCloneExtraction(ExtractCloneRefactoring.java:2312)	at gr.uom.java.jdeodorant.refactoring.manipulators.ExtractCloneRefactoring.apply(ExtractCloneRefactoring.java:341)	at gr.uom.java.jdeodorant.refactoring.manipulators.ExtractCloneRefactoring.checkFinalConditions(ExtractCloneRefactoring.java:4500)	at ca.concordia.jdeodorant.eclipse.commandline.Application.testRefactoring(Application.java:626)	at ca.concordia.jdeodorant.eclipse.commandline.Application.start(Application.java:180)	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:498)	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:610)	at org.eclipse.equinox.launcher.Main.run(Main.java:1519)	at org.eclipse.equinox.launcher.Main.main(Main.java:1492)