Bug 123946 [quick assist] "Add keyword 'final' to all unchanged variables and properties"
This function can be provide with the "Format" function
org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/quickfix/AssistQuickFixTest.java
buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E {\n");
		buf.append("    public void foo() {\n");
		buf.append("        StringBuffer buf= new StringBuffer();\n");
		buf.append("        buf.append(1);\n");
		buf.append("        buf.append(2);\n");
		buf.append("        buf.append(3);\n");
		buf.append("    }\n");
		buf.append("}\n");
		assertEqualString(preview, buf.toString());	
	}
	
	public void testUnwrapAnonymous() throws Exception {
	
		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("        Runnable run= new Runnable() {\n");
		buf.append("            public void run() { \n");
		buf.append("                throw new NullPointerException();\n");
		buf.append("            }\n");
		buf.append("        };\n");
		buf.append("    }\n");
		buf.append("}\n");
		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);
		
		String str= "};";