Bug 102142 [quick fix] Change method signature quick fix renames parameter
In 3.1. Code: public class Foo { Foo(String string) { System.out.println("" + string); } private void bar() { new Foo(3); } } The compile error on new Foo(3) offers a quick fix: "Change constructor Foo(String) to Foo(int)". Selecting it changes not only the type, but the name of the parameter: String string becomes int i. Accepting this default leads to a compile error.
org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/quickfix/UnresolvedMethodsQuickFixTest.java
ArrayList proposals= collectCorrections(cu, astRoot, 2);
		assertNumberOfProposals(proposals, 1);
		assertCorrectLabels(proposals);
		CUCorrectionProposal proposal= (CUCorrectionProposal) proposals.get(0);
		String preview= getPreviewContent(proposal);
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E {\n");
		buf.append("    private boolean foo() {\n");
		buf.append("        return f(1) == f(2);\n");
		buf.append("    }\n");
		buf.append("\n");
		buf.append("    private Object f(int i) {\n");
		buf.append("        return null;\n");
		buf.append("    }\n");		
		buf.append("}\n");
		assertEqualString(preview, buf.toString());
	}		
	public void testMethodSpacing0EmptyLines() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("import java.util.Vector;\n");
		buf.append("public class E {\n");
		buf.append("\n");
		buf.append("    void fred() {\n");
		buf.append("    }\n");
		buf.append("    void foo(Vector vec) {\n");
		buf.append("        int i= goo(vec, true);\n");
		buf.append("    }\n");