Bug 120585 [clean up] needs two invocations until all clean ups are performed
org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/quickfix/CleanUpTest.java
previews[i - offset]= change.getPreviewContent(null);
		}
		assertEqualStringsIgnoreOrder(previews, new String[] { expected1, expected2, expected3});	
	}
	
	public void testUnusedCode04() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E1 {\n");
		buf.append("    private int i;\n");
		buf.append("}\n");
		ICompilationUnit cu1= pack1.createCompilationUnit("E1.java", buf.toString(), false, null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E2 {\n");
		buf.append("    private int i= 10;\n");
		buf.append("    private int j= 10;\n");
		buf.append("}\n");
		ICompilationUnit cu2= pack1.createCompilationUnit("E2.java", buf.toString(), false, null);
		
		IPackageFragment pack2= fSourceFolder.createPackageFragment("test2", false, null);
		buf= new StringBuffer();
		buf.append("package test2;\n");
		buf.append("public class E3 {\n");
		buf.append("    private int i;\n");
		buf.append("    private int j;\n");
		buf.append("    private void foo() {\n");
		buf.append("        i= 10;\n");