org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/astrewrite/ASTRewritingMethodDeclTest.java

package org.eclipse.jdt.ui.tests.astrewrite;

import java.util.Hashtable;
import java.util.List;

import junit.framework.Test;
import junit.framework.TestSuite;

import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.dom.AST;
import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.Block;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.dom.FieldDeclaration;
import org.eclipse.jdt.core.dom.Initializer;
import org.eclipse.jdt.core.dom.MethodDeclaration;
import org.eclipse.jdt.core.dom.Modifier;
import org.eclipse.jdt.core.dom.Name;
import org.eclipse.jdt.core.dom.PrimitiveType;
import org.eclipse.jdt.core.dom.SimpleName;
import org.eclipse.jdt.core.dom.SingleVariableDeclaration;
import org.eclipse.jdt.core.dom.Type;
import org.eclipse.jdt.core.dom.TypeDeclaration;
import org.eclipse.jdt.core.dom.VariableDeclarationFragment;

import org.eclipse.jdt.testplugin.JavaProjectHelper;

import org.eclipse.jdt.internal.corext.dom.ASTRewrite;
import org.eclipse.jdt.internal.corext.refactoring.changes.CompilationUnitChange;
import org.eclipse.jdt.internal.ui.text.correction.ASTRewriteCorrectionProposal;

public class ASTRewritingMethodDeclTest extends ASTRewritingTest {
	
	private static final Class THIS= ASTRewritingMethodDeclTest.class;
	
	private IJavaProject fJProject1;
	private IPackageFragmentRoot fSourceFolder;

	public ASTRewritingMethodDeclTest(String name) {
		super(name);
	}

	public static Test suite() {
		if (true) {
			return new TestSuite(THIS);
		} else {
			TestSuite suite= new TestSuite();
			suite.addTest(new ASTRewritingMethodDeclTest("testMethodBody"));
			return suite;
		}
	}


	protected void setUp() throws Exception {
		Hashtable options= JavaCore.getOptions();
		options.put(JavaCore.FORMATTER_TAB_CHAR, JavaCore.SPACE);
		options.put(JavaCore.FORMATTER_TAB_SIZE, "4");
		JavaCore.setOptions(options);			
		
		fJProject1= JavaProjectHelper.createJavaProject("TestProject1", "bin");
		assertTrue("rt not found", JavaProjectHelper.addRTJar(fJProject1) != null);

		fSourceFolder= JavaProjectHelper.addSourceContainer(fJProject1, "src");
	}


	protected void tearDown() throws Exception {
		JavaProjectHelper.delete(fJProject1);
	}
	

	
	public void testMethodDeclChanges() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public E(int p1, int p2, int p3) {}\n");
		buf.append("    public void gee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public void hee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public void iee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public void jee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public abstract void kee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("    public abstract void lee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("}\n");	
		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);	
		
		CompilationUnit astRoot= AST.parseCompilationUnit(cu, false);
		ASTRewrite rewrite= new ASTRewrite(astRoot);
		AST ast= astRoot.getAST();
		TypeDeclaration type= findTypeDeclaration(astRoot, "E");
		
		{ // convert constructor to method: insert return type
			MethodDeclaration methodDecl= findMethodDeclaration(type, "E");
			
			Type newReturnType= astRoot.getAST().newPrimitiveType(PrimitiveType.FLOAT);
			methodDecl.setReturnType(newReturnType);
			
			rewrite.markAsInserted(newReturnType);
			
			// from constructor to method
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(false);
			modifiedNode.setModifiers(methodDecl.getModifiers()); // no change
			modifiedNode.setExtraDimensions(methodDecl.getExtraDimensions()); // no change
			rewrite.markAsModified(methodDecl, modifiedNode);
		}
		{ // change return type
			MethodDeclaration methodDecl= findMethodDeclaration(type, "gee");
			assertTrue("Has no return type: gee", methodDecl.getReturnType() != null);
			
			Type returnType= methodDecl.getReturnType();
			Type newReturnType= astRoot.getAST().newPrimitiveType(PrimitiveType.FLOAT);
			rewrite.markAsReplaced(returnType, newReturnType);
		}
		{ // remove return type
			MethodDeclaration methodDecl= findMethodDeclaration(type, "hee");
			assertTrue("Has no return type: hee", methodDecl.getReturnType() != null);
			
			Type returnType= methodDecl.getReturnType();
			rewrite.markAsRemoved(returnType);
			
			// from method to constructor
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(true);
			modifiedNode.setModifiers(methodDecl.getModifiers());
			modifiedNode.setExtraDimensions(methodDecl.getExtraDimensions()); // no change
			rewrite.markAsModified(methodDecl, modifiedNode);
		}
		{ // rename method name
			MethodDeclaration methodDecl= findMethodDeclaration(type, "iee");
			
			SimpleName name= methodDecl.getName();
			SimpleName newName= ast.newSimpleName("xii");
			
			rewrite.markAsReplaced(name, newName);
		}				
		{ // rename first param & last throw statement
			MethodDeclaration methodDecl= findMethodDeclaration(type, "jee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);
			SingleVariableDeclaration newParam= createNewParam(ast, "m");
			rewrite.markAsReplaced((ASTNode) parameters.get(0), newParam);
						
			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 2 thrown exceptions", thrownExceptions.size() == 2);
			Name newThrownException= ast.newSimpleName("ArrayStoreException");
			rewrite.markAsReplaced((ASTNode) thrownExceptions.get(1), newThrownException);			
		}
		{ // rename first and second param & rename first and last exception
			MethodDeclaration methodDecl= findMethodDeclaration(type, "kee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);
			SingleVariableDeclaration newParam1= createNewParam(ast, "m1");
			SingleVariableDeclaration newParam2= createNewParam(ast, "m2");
			rewrite.markAsReplaced((ASTNode) parameters.get(0), newParam1);
			rewrite.markAsReplaced((ASTNode) parameters.get(1), newParam2);
			
			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 3 thrown exceptions", thrownExceptions.size() == 3);
			Name newThrownException1= ast.newSimpleName("ArrayStoreException");
			Name newThrownException2= ast.newSimpleName("InterruptedException");
			rewrite.markAsReplaced((ASTNode) thrownExceptions.get(0), newThrownException1);
			rewrite.markAsReplaced((ASTNode) thrownExceptions.get(2), newThrownException2);
		}		
		{ // rename all params & rename second exception
			MethodDeclaration methodDecl= findMethodDeclaration(type, "lee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);
			SingleVariableDeclaration newParam1= createNewParam(ast, "m1");
			SingleVariableDeclaration newParam2= createNewParam(ast, "m2");			
			SingleVariableDeclaration newParam3= createNewParam(ast, "m3");	
			rewrite.markAsReplaced((ASTNode) parameters.get(0), newParam1);
			rewrite.markAsReplaced((ASTNode) parameters.get(1), newParam2);
			rewrite.markAsReplaced((ASTNode) parameters.get(2), newParam3);
			
			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 3 thrown exceptions", thrownExceptions.size() == 3);
			Name newThrownException= ast.newSimpleName("ArrayStoreException");
			rewrite.markAsReplaced((ASTNode) thrownExceptions.get(1), newThrownException);
		}				
		
					
		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal("", cu, rewrite, 10, null);
		proposal.getCompilationUnitChange().setSave(true);
		
		proposal.apply(null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public float E(int p1, int p2, int p3) {}\n");
		buf.append("    public float gee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public hee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public void xii(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public void jee(float m, int p2, int p3) throws IllegalArgumentException, ArrayStoreException {}\n");
		buf.append("    public abstract void kee(float m1, float m2, int p3) throws ArrayStoreException, IllegalAccessException, InterruptedException;\n");
		buf.append("    public abstract void lee(float m1, float m2, float m3) throws IllegalArgumentException, ArrayStoreException, SecurityException;\n");
		buf.append("}\n");	
			
		assertEqualString(cu.getSource(), buf.toString());
		clearRewrite(rewrite);
	}
	
	public void testListRemoves() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public E(int p1, int p2, int p3) {}\n");
		buf.append("    public void gee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public void hee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public void iee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public void jee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public abstract void kee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("    public abstract void lee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("}\n");	
		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);	
		
		CompilationUnit astRoot= AST.parseCompilationUnit(cu, false);
		ASTRewrite rewrite= new ASTRewrite(astRoot);
		AST ast= astRoot.getAST();
		TypeDeclaration type= findTypeDeclaration(astRoot, "E");
		
		{ // delete first param
			MethodDeclaration methodDecl= findMethodDeclaration(type, "E");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);
			rewrite.markAsRemoved((ASTNode) parameters.get(0));
		}
		{ // delete second param & remove exception & remove public
			MethodDeclaration methodDecl= findMethodDeclaration(type, "gee");
			
			// change flags
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(methodDecl.isConstructor()); // no change
			modifiedNode.setExtraDimensions(methodDecl.getExtraDimensions()); // no change
			modifiedNode.setModifiers(0);
			rewrite.markAsModified(methodDecl, modifiedNode);
			
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);
			rewrite.markAsRemoved((ASTNode) parameters.get(1));
			
			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 1 thrown exceptions", thrownExceptions.size() == 1);
			rewrite.markAsRemoved((ASTNode) thrownExceptions.get(0));
		}		
		{ // delete last param
			MethodDeclaration methodDecl= findMethodDeclaration(type, "hee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);
			rewrite.markAsRemoved((ASTNode) parameters.get(2));	
		}				
		{ // delete first and second param & remove first exception
			MethodDeclaration methodDecl= findMethodDeclaration(type, "iee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);
			rewrite.markAsRemoved((ASTNode) parameters.get(0));
			rewrite.markAsRemoved((ASTNode) parameters.get(1));
			
			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 2 thrown exceptions", thrownExceptions.size() == 2);
			rewrite.markAsRemoved((ASTNode) thrownExceptions.get(0));	
		}				
		{ // delete first and last param & remove second
			MethodDeclaration methodDecl= findMethodDeclaration(type, "jee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);
			rewrite.markAsRemoved((ASTNode) parameters.get(0));
			rewrite.markAsRemoved((ASTNode) parameters.get(2));
			
			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 2 thrown exceptions", thrownExceptions.size() == 2);
			rewrite.markAsRemoved((ASTNode) thrownExceptions.get(1));			
		}
		{ // delete second and last param & remove first exception
			MethodDeclaration methodDecl= findMethodDeclaration(type, "kee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);
			rewrite.markAsRemoved((ASTNode) parameters.get(1));
			rewrite.markAsRemoved((ASTNode) parameters.get(2));
			
			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 3 thrown exceptions", thrownExceptions.size() == 3);
			rewrite.markAsRemoved((ASTNode) thrownExceptions.get(1));
		}		
		{ // delete all params & remove first and last exception
			MethodDeclaration methodDecl= findMethodDeclaration(type, "lee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);
			rewrite.markAsRemoved((ASTNode) parameters.get(0));
			rewrite.markAsRemoved((ASTNode) parameters.get(1));
			rewrite.markAsRemoved((ASTNode) parameters.get(2));
			
			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 3 thrown exceptions", thrownExceptions.size() == 3);
			rewrite.markAsRemoved((ASTNode) thrownExceptions.get(0));
			rewrite.markAsRemoved((ASTNode) thrownExceptions.get(2));				
		}				


		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal("", cu, rewrite, 10, null);
		proposal.getCompilationUnitChange().setSave(true);
		
		proposal.apply(null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public E(int p2, int p3) {}\n");
		buf.append("    void gee(int p1, int p3) {}\n");
		buf.append("    public void hee(int p1, int p2) throws IllegalArgumentException {}\n");
		buf.append("    public void iee(int p3) throws IllegalAccessException {}\n");
		buf.append("    public void jee(int p2) throws IllegalArgumentException {}\n");
		buf.append("    public abstract void kee(int p1) throws IllegalArgumentException, SecurityException;\n");
		buf.append("    public abstract void lee() throws IllegalAccessException;\n");
		buf.append("}\n");	
			
		assertEqualString(cu.getSource(), buf.toString());
		clearRewrite(rewrite);
	}	
	
	public void testListInserts() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public E(int p1, int p2, int p3) {}\n");
		buf.append("    public void gee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public void hee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public void iee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public void jee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public abstract void kee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("    public abstract void lee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("}\n");	
		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);	
		
		CompilationUnit astRoot= AST.parseCompilationUnit(cu, false);
		ASTRewrite rewrite= new ASTRewrite(astRoot);
		AST ast= astRoot.getAST();
		TypeDeclaration type= findTypeDeclaration(astRoot, "E");
		
		{ // insert before first param & insert an exception
			MethodDeclaration methodDecl= findMethodDeclaration(type, "E");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);

			SingleVariableDeclaration newParam= createNewParam(ast, "m");
			parameters.add(0, newParam);
			rewrite.markAsInserted(newParam);

			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 0 thrown exceptions", thrownExceptions.size() == 0);
			
			Name newThrownException= ast.newSimpleName("InterruptedException");
			thrownExceptions.add(newThrownException);
			rewrite.markAsInserted(newThrownException);
		}
		{ // insert before second param & insert before first exception & add synchronized
			MethodDeclaration methodDecl= findMethodDeclaration(type, "gee");
			
			
			// change flags
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(methodDecl.isConstructor()); // no change
			modifiedNode.setExtraDimensions(methodDecl.getExtraDimensions()); // no change
			modifiedNode.setModifiers(Modifier.PUBLIC | Modifier.SYNCHRONIZED);
			rewrite.markAsModified(methodDecl, modifiedNode);			
			
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);

			SingleVariableDeclaration newParam= createNewParam(ast, "m");
			parameters.add(1, newParam);
			rewrite.markAsInserted(newParam);

			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 1 thrown exceptions", thrownExceptions.size() == 1);
			
			Name newThrownException= ast.newSimpleName("InterruptedException");
			thrownExceptions.add(0, newThrownException);
			rewrite.markAsInserted(newThrownException);
		}		
		{ // insert after last param & insert after first exception & add synchronized, static
			MethodDeclaration methodDecl= findMethodDeclaration(type, "hee");
			
			// change flags
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(methodDecl.isConstructor()); // no change
			modifiedNode.setExtraDimensions(methodDecl.getExtraDimensions()); // no change
			modifiedNode.setModifiers(Modifier.PUBLIC | Modifier.SYNCHRONIZED | Modifier.STATIC);
			rewrite.markAsModified(methodDecl, modifiedNode);					
			
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);

			SingleVariableDeclaration newParam= createNewParam(ast, "m");
			parameters.add(newParam);
			rewrite.markAsInserted(newParam);

			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 1 thrown exceptions", thrownExceptions.size() == 1);
			
			Name newThrownException= ast.newSimpleName("InterruptedException");
			thrownExceptions.add(newThrownException);
			rewrite.markAsInserted(newThrownException);
		}				
		{ // insert 2 params before first & insert between two exception
			MethodDeclaration methodDecl= findMethodDeclaration(type, "iee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);

			SingleVariableDeclaration newParam1= createNewParam(ast, "m1");
			SingleVariableDeclaration newParam2= createNewParam(ast, "m2");
			parameters.add(0, newParam1);
			parameters.add(1, newParam2);
			rewrite.markAsInserted(newParam1);
			rewrite.markAsInserted(newParam2);

			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 2 thrown exceptions", thrownExceptions.size() == 2);
			
			Name newThrownException= ast.newSimpleName("InterruptedException");
			thrownExceptions.add(1, newThrownException);
			rewrite.markAsInserted(newThrownException);
		}			
		{ // insert 2 params after first & replace the second exception and insert new after
			MethodDeclaration methodDecl= findMethodDeclaration(type, "jee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);

			SingleVariableDeclaration newParam1= createNewParam(ast, "m1");
			SingleVariableDeclaration newParam2= createNewParam(ast, "m2");
			parameters.add(1, newParam1);
			parameters.add(2, newParam2);
			rewrite.markAsInserted(newParam1);
			rewrite.markAsInserted(newParam2);

			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 2 thrown exceptions", thrownExceptions.size() == 2);
			
			Name newThrownException1= ast.newSimpleName("InterruptedException");
			thrownExceptions.add(newThrownException1);
			rewrite.markAsInserted(newThrownException1);
			
			Name newThrownException2= ast.newSimpleName("ArrayStoreException");
			rewrite.markAsReplaced((ASTNode) thrownExceptions.get(1), newThrownException2);
		}
		{ // insert 2 params after last & remove the last exception and insert new after
			MethodDeclaration methodDecl= findMethodDeclaration(type, "kee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);

			SingleVariableDeclaration newParam1= createNewParam(ast, "m1");
			SingleVariableDeclaration newParam2= createNewParam(ast, "m2");
			parameters.add(newParam1);
			parameters.add(newParam2);
			rewrite.markAsInserted(newParam1);
			rewrite.markAsInserted(newParam2);
			
			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 3 thrown exceptions", thrownExceptions.size() == 3);
			
			Name newThrownException= ast.newSimpleName("InterruptedException");
			thrownExceptions.add(newThrownException);
			rewrite.markAsInserted(newThrownException);
			
			rewrite.markAsRemoved((ASTNode) thrownExceptions.get(2));			
		}	
		{ // insert at first and last position & remove 2nd, add after 2nd, remove 3rd
			MethodDeclaration methodDecl= findMethodDeclaration(type, "lee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);

			SingleVariableDeclaration newParam1= createNewParam(ast, "m1");
			SingleVariableDeclaration newParam2= createNewParam(ast, "m2");
			parameters.add(0, newParam1);
			parameters.add(newParam2);
			rewrite.markAsInserted(newParam1);
			rewrite.markAsInserted(newParam2);
			
			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 3 thrown exceptions", thrownExceptions.size() == 3);
			
			rewrite.markAsRemoved((ASTNode) thrownExceptions.get(1));
			rewrite.markAsRemoved((ASTNode) thrownExceptions.get(2));
			
			Name newThrownException= ast.newSimpleName("InterruptedException");
			thrownExceptions.add(2, newThrownException);
			rewrite.markAsInserted(newThrownException);			
		}				


		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal("", cu, rewrite, 10, null);
		proposal.getCompilationUnitChange().setSave(true);
		
		proposal.apply(null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public E(float m, int p1, int p2, int p3) throws InterruptedException {}\n");
		buf.append("    public synchronized void gee(int p1, float m, int p2, int p3) throws InterruptedException, IllegalArgumentException {}\n");
		buf.append("    public static synchronized void hee(int p1, int p2, int p3, float m) throws IllegalArgumentException, InterruptedException {}\n");
		buf.append("    public void iee(float m1, float m2, int p1, int p2, int p3) throws IllegalArgumentException, InterruptedException, IllegalAccessException {}\n");
		buf.append("    public void jee(int p1, float m1, float m2, int p2, int p3) throws IllegalArgumentException, ArrayStoreException, InterruptedException {}\n");
		buf.append("    public abstract void kee(int p1, int p2, int p3, float m1, float m2) throws IllegalArgumentException, IllegalAccessException, InterruptedException;\n");
		buf.append("    public abstract void lee(float m1, int p1, int p2, int p3, float m2) throws IllegalArgumentException, InterruptedException;\n");
		buf.append("}\n");	
			
		assertEqualString(cu.getSource(), buf.toString());
		clearRewrite(rewrite);
	}
	
	public void testListCombinations() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public E(int p1, int p2, int p3) {}\n");
		buf.append("    public void gee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public void hee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public void iee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public void jee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public abstract void kee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("    public abstract void lee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("}\n");	
		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);	
		
		CompilationUnit astRoot= AST.parseCompilationUnit(cu, false);
		ASTRewrite rewrite= new ASTRewrite(astRoot);
		AST ast= astRoot.getAST();
		TypeDeclaration type= findTypeDeclaration(astRoot, "E");
		
		{ // delete all and insert after & insert 2 exceptions
			MethodDeclaration methodDecl= findMethodDeclaration(type, "E");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);
		
			rewrite.markAsRemoved((ASTNode) parameters.get(0));
			rewrite.markAsRemoved((ASTNode) parameters.get(1));
			rewrite.markAsRemoved((ASTNode) parameters.get(2));

			SingleVariableDeclaration newParam= createNewParam(ast, "m");
			parameters.add(newParam);
			rewrite.markAsInserted(newParam);

			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 0 thrown exceptions", thrownExceptions.size() == 0);
			
			Name newThrownException1= ast.newSimpleName("InterruptedException");
			thrownExceptions.add(newThrownException1);
			rewrite.markAsInserted(newThrownException1);
			
			Name newThrownException2= ast.newSimpleName("ArrayStoreException");
			thrownExceptions.add(newThrownException2);
			rewrite.markAsInserted(newThrownException2);
			
		}
		{ // delete first 2, replace last and insert after & replace first exception and insert before
			MethodDeclaration methodDecl= findMethodDeclaration(type, "gee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);

			rewrite.markAsRemoved((ASTNode) parameters.get(0));
			rewrite.markAsRemoved((ASTNode) parameters.get(1));
			
			SingleVariableDeclaration newParam1= createNewParam(ast, "m1");
			rewrite.markAsReplaced((ASTNode) parameters.get(2), newParam1);
						
			SingleVariableDeclaration newParam2= createNewParam(ast, "m2");
			parameters.add(newParam2);
			rewrite.markAsInserted(newParam2);

			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 1 thrown exceptions", thrownExceptions.size() == 1);
			
			Name modifiedThrownException= ast.newSimpleName("InterruptedException");
			rewrite.markAsReplaced((ASTNode) thrownExceptions.get(0), modifiedThrownException);
						
			Name newThrownException2= ast.newSimpleName("ArrayStoreException");
			thrownExceptions.add(newThrownException2);
			rewrite.markAsInserted(newThrownException2);
		}		
		{ // delete first 2, replace last and insert at first & remove first and insert before
			MethodDeclaration methodDecl= findMethodDeclaration(type, "hee");
			List parameters= methodDecl.parameters();
			assertTrue("must be 3 parameters", parameters.size() == 3);

			rewrite.markAsRemoved((ASTNode) parameters.get(0));
			rewrite.markAsRemoved((ASTNode) parameters.get(1));
			
			SingleVariableDeclaration newParam1= createNewParam(ast, "m1");
			rewrite.markAsReplaced((ASTNode) parameters.get(2), newParam1);
						
			SingleVariableDeclaration newParam2= createNewParam(ast, "m2");
			parameters.add(0, newParam2);
			rewrite.markAsInserted(newParam2);


			List thrownExceptions= methodDecl.thrownExceptions();
			assertTrue("must be 1 thrown exceptions", thrownExceptions.size() == 1);
			
			rewrite.markAsRemoved((ASTNode) thrownExceptions.get(0));
						
			Name newThrownException2= ast.newSimpleName("ArrayStoreException");
			thrownExceptions.add(newThrownException2);
			rewrite.markAsInserted(newThrownException2);
		}				


		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal("", cu, rewrite, 10, null);
		proposal.getCompilationUnitChange().setSave(true);
		
		proposal.apply(null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public E(float m) throws InterruptedException, ArrayStoreException {}\n");
		buf.append("    public void gee(float m1, float m2) throws InterruptedException, ArrayStoreException {}\n");
		buf.append("    public void hee(float m2, float m1) throws ArrayStoreException {}\n");
		buf.append("    public void iee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public void jee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public abstract void kee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("    public abstract void lee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("}\n");	
			
		assertEqualString(cu.getSource(), buf.toString());
		clearRewrite(rewrite);
	}
	
	public void testMethodBody() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public E(int p1, int p2, int p3) {}\n");
		buf.append("    public void gee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public void hee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public void iee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public void jee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public abstract void kee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("    public abstract void lee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("}\n");	
		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);	
		
		CompilationUnit astRoot= AST.parseCompilationUnit(cu, false);
		ASTRewrite rewrite= new ASTRewrite(astRoot);
		AST ast= astRoot.getAST();
		TypeDeclaration type= findTypeDeclaration(astRoot, "E");
		
		{ // replace block
			MethodDeclaration methodDecl= findMethodDeclaration(type, "E");
			
			Block body= methodDecl.getBody();
			assertTrue("No body: E", body != null);
			
			Block newBlock= ast.newBlock();

			rewrite.markAsReplaced(body, newBlock);
		}
		{ // delete block & set abstract
			MethodDeclaration methodDecl= findMethodDeclaration(type, "gee");
			
			// change flags
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(methodDecl.isConstructor()); // no change
			modifiedNode.setExtraDimensions(methodDecl.getExtraDimensions()); // no change
			modifiedNode.setModifiers(Modifier.PUBLIC | Modifier.ABSTRACT);
			rewrite.markAsModified(methodDecl, modifiedNode);					
			
			Block body= methodDecl.getBody();
			assertTrue("No body: gee", body != null);

			rewrite.markAsRemoved(body);
		}
		{ // insert block & set to private
			MethodDeclaration methodDecl= findMethodDeclaration(type, "kee");
			
			// change flags
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(methodDecl.isConstructor()); // no change
			modifiedNode.setExtraDimensions(methodDecl.getExtraDimensions()); // no change
			modifiedNode.setModifiers(Modifier.PRIVATE);
			rewrite.markAsModified(methodDecl, modifiedNode);				
			
			Block body= methodDecl.getBody();
			assertTrue("Has body", body == null);
			
			Block newBlock= ast.newBlock();
			methodDecl.setBody(newBlock);

			rewrite.markAsInserted(newBlock);
		}		

		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal("", cu, rewrite, 10, null);
		proposal.getCompilationUnitChange().setSave(true);
		
		proposal.apply(null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public E(int p1, int p2, int p3) {\n");
		buf.append("    }\n");
		buf.append("    public abstract void gee(int p1, int p2, int p3) throws IllegalArgumentException;\n");
		buf.append("    public void hee(int p1, int p2, int p3) throws IllegalArgumentException {}\n");
		buf.append("    public void iee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    public void jee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException {}\n");
		buf.append("    private void kee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException {\n");
		buf.append("    }\n");
		buf.append("    public abstract void lee(int p1, int p2, int p3) throws IllegalArgumentException, IllegalAccessException, SecurityException;\n");
		buf.append("}\n");	
		assertEqualString(cu.getSource(), buf.toString());
		clearRewrite(rewrite);
	}
	
	public void testMethodDeclarationExtraDimensions() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public Object foo1() { return null; }\n");
		buf.append("    public Object foo2() throws IllegalArgumentException { return null; }\n");
		buf.append("    public Object foo3()[][] { return null; }\n");
		buf.append("    public Object foo4()[][] throws IllegalArgumentException { return null; }\n");
		buf.append("    public Object foo5()[][] { return null; }\n");
		buf.append("    public Object foo6(int i)[][] throws IllegalArgumentException { return null; }\n");
		buf.append("    public Object foo7(int i)[][] { return null; }\n");
		buf.append("}\n");	
		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);	
		
		CompilationUnit astRoot= AST.parseCompilationUnit(cu, false);
		ASTRewrite rewrite= new ASTRewrite(astRoot);
		AST ast= astRoot.getAST();
		TypeDeclaration type= findTypeDeclaration(astRoot, "E");
		
		{ // add extra dim, add throws
			MethodDeclaration methodDecl= findMethodDeclaration(type, "foo1");
			
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(methodDecl.isConstructor()); // no change
			modifiedNode.setModifiers(methodDecl.getModifiers()); // no change
			modifiedNode.setExtraDimensions(1); 
			rewrite.markAsModified(methodDecl, modifiedNode);
			
			Name newThrownException2= ast.newSimpleName("ArrayStoreException");
			methodDecl.thrownExceptions().add(newThrownException2);
			rewrite.markAsInserted(newThrownException2);			
		}
		{ // add extra dim, remove throws
			MethodDeclaration methodDecl= findMethodDeclaration(type, "foo2");
			
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(methodDecl.isConstructor()); // no change
			modifiedNode.setModifiers(methodDecl.getModifiers()); // no change			
			modifiedNode.setExtraDimensions(1); 
			rewrite.markAsModified(methodDecl, modifiedNode);
			
			rewrite.markAsRemoved((ASTNode) methodDecl.thrownExceptions().get(0));			
		}		
		{ // remove extra dim, add throws
			MethodDeclaration methodDecl= findMethodDeclaration(type, "foo3");
			
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(methodDecl.isConstructor()); // no change
			modifiedNode.setModifiers(methodDecl.getModifiers()); // no change
			modifiedNode.setExtraDimensions(1); 
			rewrite.markAsModified(methodDecl, modifiedNode);
			
			Name newThrownException2= ast.newSimpleName("ArrayStoreException");
			methodDecl.thrownExceptions().add(newThrownException2);
			rewrite.markAsInserted(newThrownException2);			
		}
		{ // add extra dim, remove throws
			MethodDeclaration methodDecl= findMethodDeclaration(type, "foo4");
			
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(methodDecl.isConstructor()); // no change
			modifiedNode.setModifiers(methodDecl.getModifiers()); // no change			
			modifiedNode.setExtraDimensions(1); 
			rewrite.markAsModified(methodDecl, modifiedNode);
			
			rewrite.markAsRemoved((ASTNode) methodDecl.thrownExceptions().get(0));			
		}
		{ // add params, add extra dim, add throws
			MethodDeclaration methodDecl= findMethodDeclaration(type, "foo5");
			
			SingleVariableDeclaration newParam1= createNewParam(ast, "m1");
			methodDecl.parameters().add(newParam1);
			rewrite.markAsInserted(newParam1);						
			
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(methodDecl.isConstructor()); // no change
			modifiedNode.setModifiers(methodDecl.getModifiers()); // no change
			modifiedNode.setExtraDimensions(4); 
			rewrite.markAsModified(methodDecl, modifiedNode);
			
			Name newThrownException2= ast.newSimpleName("ArrayStoreException");
			methodDecl.thrownExceptions().add(newThrownException2);
			rewrite.markAsInserted(newThrownException2);			
		}
		{ // remove params, add extra dim, remove throws
			MethodDeclaration methodDecl= findMethodDeclaration(type, "foo6");
			
			rewrite.markAsRemoved((ASTNode) methodDecl.parameters().get(0));		
			
			MethodDeclaration modifiedNode= ast.newMethodDeclaration();
			modifiedNode.setConstructor(methodDecl.isConstructor()); // no change
			modifiedNode.setModifiers(methodDecl.getModifiers()); // no change			
			modifiedNode.setExtraDimensions(4); 
			rewrite.markAsModified(methodDecl, modifiedNode);
			
			rewrite.markAsRemoved((ASTNode) methodDecl.thrownExceptions().get(0));			
		}
		{ // remove block
			MethodDeclaration methodDecl= findMethodDeclaration(type, "foo7");
			rewrite.markAsRemoved(methodDecl.getBody());			
		}					
		
		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal("", cu, rewrite, 10, null);
		proposal.getCompilationUnitChange().setSave(true);
		
		proposal.apply(null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public Object foo1()[] throws ArrayStoreException { return null; }\n");
		buf.append("    public Object foo2()[] { return null; }\n");
		buf.append("    public Object foo3()[] throws ArrayStoreException { return null; }\n");
		buf.append("    public Object foo4()[] { return null; }\n");
		buf.append("    public Object foo5(float m1)[][][][] throws ArrayStoreException { return null; }\n");
		buf.append("    public Object foo6()[][][][] { return null; }\n");
		buf.append("    public Object foo7(int i)[][];\n");		
		buf.append("}\n");	
		assertEqualString(cu.getSource(), buf.toString());
		clearRewrite(rewrite);
	}
	
	
	
	public void testFieldDeclaration() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class A {\n");
		buf.append("    int i1= 1;\n");
		buf.append("    int i2= 1, k2= 2, n2= 3;\n");
		buf.append("    static final int i3= 1, k3= 2, n3= 3;\n");
		buf.append("}\n");	
		ICompilationUnit cu= pack1.createCompilationUnit("A.java", buf.toString(), false, null);
		
		CompilationUnit astRoot= AST.parseCompilationUnit(cu, false);
		ASTRewrite rewrite= new ASTRewrite(astRoot);
		
		AST ast= astRoot.getAST();
		
		assertTrue("Parse errors", (astRoot.getFlags() & ASTNode.MALFORMED) == 0);
		TypeDeclaration type= findTypeDeclaration(astRoot, "A");
		
		FieldDeclaration[] fieldDeclarations= type.getFields();
		assertTrue("Number of fieldDeclarations not 3", fieldDeclarations.length == 3);
		{	// add modifier, change type, add fragment
			FieldDeclaration decl= fieldDeclarations[0];
			
			// add modifier
			FieldDeclaration modifiedNode= ast.newFieldDeclaration(ast.newVariableDeclarationFragment());
			modifiedNode.setModifiers(Modifier.FINAL);
			
			rewrite.markAsModified(decl, modifiedNode);
			
			PrimitiveType newType= ast.newPrimitiveType(PrimitiveType.BOOLEAN);
			rewrite.markAsReplaced(decl.getType(), newType);
			
			List fragments= decl.fragments();
			
			VariableDeclarationFragment frag=	ast.newVariableDeclarationFragment();
			frag.setName(ast.newSimpleName("k1"));
			frag.setInitializer(null);
			
			rewrite.markAsInserted(frag);
			
			fragments.add(frag);
		}
		{	// add modifiers, remove first two fragments, replace last
			FieldDeclaration decl= fieldDeclarations[1];
			
			// add modifier
			FieldDeclaration modifiedNode= ast.newFieldDeclaration(ast.newVariableDeclarationFragment());
			modifiedNode.setModifiers(Modifier.FINAL | Modifier.STATIC | Modifier.TRANSIENT);
			
			rewrite.markAsModified(decl, modifiedNode);
			
			List fragments= decl.fragments();
			assertTrue("Number of fragments not 3", fragments.size() == 3);
			
			rewrite.markAsRemoved((ASTNode) fragments.get(0));
			rewrite.markAsRemoved((ASTNode) fragments.get(1));
			
			VariableDeclarationFragment frag=	ast.newVariableDeclarationFragment();
			frag.setName(ast.newSimpleName("k2"));
			frag.setInitializer(null);
			
			rewrite.markAsReplaced((ASTNode) fragments.get(2), frag);
		}
		{	// remove modifiers
			FieldDeclaration decl= fieldDeclarations[2];
			
			// add modifier
			FieldDeclaration modifiedNode= ast.newFieldDeclaration(ast.newVariableDeclarationFragment());
			modifiedNode.setModifiers(0);
			
			rewrite.markAsModified(decl, modifiedNode);
		}
				
		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal("", cu, rewrite, 10, null);
		proposal.getCompilationUnitChange().setSave(true);
		
		proposal.apply(null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class A {\n");
		buf.append("    final boolean i1= 1, k1;\n");
		buf.append("    static final transient int k2;\n");
		buf.append("    int i3= 1, k3= 2, n3= 3;\n");
		buf.append("}\n");	
		
		assertEqualString(cu.getSource(), buf.toString());
		clearRewrite(rewrite);
	}
	
	public void testInitializer() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class A {\n");
		buf.append("    {\n");
		buf.append("        foo();\n");
		buf.append("    }\n");
		buf.append("    static {\n");
		buf.append("    }\n");
		buf.append("}\n");	
		ICompilationUnit cu= pack1.createCompilationUnit("A.java", buf.toString(), false, null);
		
		CompilationUnit astRoot= AST.parseCompilationUnit(cu, false);
		ASTRewrite rewrite= new ASTRewrite(astRoot);
		
		AST ast= astRoot.getAST();
		
		assertTrue("Parse errors", (astRoot.getFlags() & ASTNode.MALFORMED) == 0);
		TypeDeclaration type= findTypeDeclaration(astRoot, "A");
		
		List declarations= type.bodyDeclarations();
		assertTrue("Number of fieldDeclarations not 2", declarations.size() == 2);
		{	// change modifier, replace body
			Initializer initializer= (Initializer) declarations.get(0);
			
			// add modifier
			Initializer modifiedNode= ast.newInitializer();
			modifiedNode.setModifiers(Modifier.STATIC);
			
			rewrite.markAsModified(initializer, modifiedNode);
			
			
			Block block= ast.newBlock();
			block.statements().add(ast.newReturnStatement());
			
			rewrite.markAsReplaced(initializer.getBody(), block);
		}
		{	// change modifier
			Initializer initializer= (Initializer) declarations.get(1);
			
			// remove modifier
			Initializer modifiedNode= ast.newInitializer();
			modifiedNode.setModifiers(0);
			
			rewrite.markAsModified(initializer, modifiedNode);
		}
				
		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal("", cu, rewrite, 10, null);
		proposal.getCompilationUnitChange().setSave(true);
		
		proposal.apply(null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class A {\n");
		buf.append("    static {\n");
		buf.append("        return;\n");
		buf.append("    }\n");
		buf.append("    {\n");
		buf.append("    }\n");
		buf.append("}\n");	
		
		assertEqualString(cu.getSource(), buf.toString());
		clearRewrite(rewrite);
	}
	
	
	public void testMethodDeclarationParamShuffel() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public Object foo1(int i, boolean b) { return null; }\n");
		buf.append("}\n");	
		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);	
		
		CompilationUnit astRoot= AST.parseCompilationUnit(cu, false);
		ASTRewrite rewrite= new ASTRewrite(astRoot);
		AST ast= astRoot.getAST();
		TypeDeclaration type= findTypeDeclaration(astRoot, "E");
		
		{ // add extra dim, add throws
			MethodDeclaration methodDecl= findMethodDeclaration(type, "foo1");
			
			List params= methodDecl.parameters();
			
			SingleVariableDeclaration first= (SingleVariableDeclaration) params.get(0);
			SingleVariableDeclaration second= (SingleVariableDeclaration) params.get(1);
			rewrite.markAsReplaced(first.getName(), ast.newSimpleName("x"));
			rewrite.markAsReplaced(second.getName(), ast.newSimpleName("y"));
				
			ASTNode copy1= rewrite.createCopy(first);
			ASTNode copy2= rewrite.createCopy(second);
			
			rewrite.markAsReplaced(first, copy2);
			rewrite.markAsReplaced(second, copy1);
			
		}
	
		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal("", cu, rewrite, 10, null);
		proposal.getCompilationUnitChange().setSave(true);
		
		proposal.apply(null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public Object foo1(boolean y, int x) { return null; }\n");
		buf.append("}\n");	
		assertEqualString(cu.getSource(), buf.toString());
		clearRewrite(rewrite);
	}	
	

	public void testMethodDeclarationParamShuffel1() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public Object foo1(int i, boolean b) { return null; }\n");
		buf.append("}\n");	
		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);	
		
		CompilationUnit astRoot= AST.parseCompilationUnit(cu, false);
		ASTRewrite rewrite= new ASTRewrite(astRoot);
		TypeDeclaration type= findTypeDeclaration(astRoot, "E");
		
		{ 
			MethodDeclaration methodDecl= findMethodDeclaration(type, "foo1");
			
			List params= methodDecl.parameters();
			
			SingleVariableDeclaration first= (SingleVariableDeclaration) params.get(0);
			SingleVariableDeclaration second= (SingleVariableDeclaration) params.get(1);
				
			ASTNode copy2= rewrite.createCopy(second);

			rewrite.markAsReplaced(first, copy2);
			rewrite.markAsRemoved(second);
		}
	
		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal("", cu, rewrite, 10, null);
		CompilationUnitChange compilationUnitChange= proposal.getCompilationUnitChange();
		compilationUnitChange.getPreviewContent();
		compilationUnitChange.setSave(true);
		
		proposal.apply(null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class E {\n");
		buf.append("    public Object foo1(boolean b) { return null; }\n");
		buf.append("}\n");	
		assertEqualString(cu.getSource(), buf.toString());
		clearRewrite(rewrite);
	}	
	
}