buf.append("        process();\n"); buf.append("        super.hashCode();\n");
buf.append("        res= (super.hashCode() == 1);\n");
	public void testUnusedVariable() throws Exception {		Hashtable hashtable= JavaCore.getOptions();		hashtable.put(JavaCore.COMPILER_PB_UNUSED_LOCAL, JavaCore.ERROR);		hashtable.put(JavaCore.COMPILER_PB_UNUSED_PARAMETER, JavaCore.ERROR);		JavaCore.setOptions(hashtable);				IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);		StringBuffer buf= new StringBuffer();		buf.append("package test1;\n");		buf.append("public class E {\n");		buf.append("    public void foo() {\n");		buf.append("        boolean res= process();\n");		buf.append("        res= (super.hashCode() == 1);\n");		buf.append("    }\n");		buf.append("    public boolean process() {\n");		buf.append("        return true;\n");		buf.append("    }\n");		buf.append("}\n");		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);				CompilationUnit astRoot= AST.parseCompilationUnit(cu, true);		IProblem[] problems= astRoot.getProblems();		assertNumberOf("problems", problems.length, 1);		CorrectionContext context= getCorrectionContext(cu, problems[0]);		assertCorrectContext(context);		ArrayList proposals= new ArrayList();		JavaCorrectionProcessor.collectCorrections(context,  proposals);		assertNumberOf("proposals", proposals.size(), 1);		assertCorrectLabels(proposals);		CUCorrectionProposal proposal= (CUCorrectionProposal) proposals.get(0);		String preview= proposal.getCompilationUnitChange().getPreviewContent();		buf= new StringBuffer();		buf.append("package test1;\n");		buf.append("public class E {\n");		buf.append("    public void foo() {\n");		buf.append("        process();\n");		buf.append("        super.hashCode();\n");		buf.append("    }\n");		buf.append("    public boolean process() {\n");		buf.append("        return true;\n");		buf.append("    }\n");		buf.append("}\n");		assertEqualString(preview, buf.toString());	}