Bug 38892 ASTRewrite should support copying nodes more than once.
M1 Try is result currently in an exception: org.eclipse.jdt.internal.corext.Assert$AssertionFailedException: assertion failed; Node used as more than one copy source at java.lang.Throwable.<init>(Throwable.java) at java.lang.Throwable.<init>(Throwable.java) at org.eclipse.jdt.internal.corext.Assert$AssertionFailedException.<init> (Assert.java:55) at org.eclipse.jdt.internal.corext.Assert.isTrue(Assert.java:136) at org.eclipse.jdt.internal.corext.dom.ASTRewrite.createCopy (ASTRewrite.java:289)
org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/astrewrite/ASTRewritingMoveCodeTest.java
buf.append("        }\n");
		buf.append("    }\n");
		buf.append("    public void goo() {\n");
		buf.append("    }\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);
		assertTrue("Code has errors", (astRoot.getFlags() & ASTNode.MALFORMED) == 0);
		
		TypeDeclaration type= findTypeDeclaration(astRoot, "E");
		
		{ 
			MethodDeclaration methodDecl= findMethodDeclaration(type, "foo");
			assertTrue("Cannot find foo", methodDecl != null);
			
			rewrite.markAsRemoved(methodDecl);
			
			Block body= methodDecl.getBody();
			List statements= body.statements();
			assertTrue("Cannot find if statement", statements.size() == 1);
			
			ASTNode placeHolder= rewrite.createCopy((ASTNode) statements.get(0));
			
			
			MethodDeclaration methodGoo= findMethodDeclaration(type, "goo");
			assertTrue("Cannot find goo", methodGoo != null);
			
			rewrite.markAsInserted(placeHolder);