MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitVarInsn(Opcodes.ALOAD, 0);
mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "org/eclipse/persistence/internal/jaxb/many/MapValue", "<init>", "()V");
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
// Write: @XmlTransitent public void setItem(???)
String methodSig = "(L" + mapType.getInternalName() + "<L" + internalKeyName + ";L" + internalValueName + ";>;)V";
mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "setItem", "(L" + mapType.getInternalName() + ";)V", methodSig, null);