// setImplData(sm.getImplData());
impl = addBeanField(bc, "implData", Object.class);
code.aload().setParam(0);
code.invokeinterface().setMethod(OpenJPAStateManager.class,
"isImplDataCacheable", boolean.class, null);
JumpInstruction ifins = code.ifeq();
code.aload().setThis();
code.aload().setParam(0);
code.invokeinterface().setMethod(OpenJPAStateManager.class,
"getImplData", Object.class, null);
code.invokevirtual().setMethod("setImplData", void.class,