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/ASTRewritingTypeDeclTest.java
type.superInterfaces().add(newInterface);
			
			rewrite.markAsInserted(newInterface);
			
			List members= type.bodyDeclarations();
			
			MethodDeclaration newMethodDecl= createNewMethod(ast, "newMethod", true);
			members.add(newMethodDecl);
			
			rewrite.markAsInserted(newMethodDecl);
		}			
		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 final class E extends Exception implements Cloneable, Runnable, Serializable {\n");
		buf.append("    public static class EInner {\n");
		buf.append("        private double fCount;\n");
		buf.append("\n");				
		buf.append("        public void xee() {\n");
		buf.append("        }\n");
		buf.append("    }\n");		
		buf.append("    private int i;\n");	
		buf.append("    private int k;\n");	
		buf.append("    public E() {\n");
		buf.append("    }\n");
		buf.append("    private void newMethod(String str) {\n");