Hi I used slide api to implement the file upload, it works well in slide2.0, but exception occurs when I use 2.1M1 instead. I really appreciate if anyone can guide me anything I did not notice. My code for a new file upload looks like: token.begin(); structure.create(slideToken, subject, resourcePath); //null exception occurs ..... content.create(slideToken,resourcePath,revisionDescriptor,revisionContent); token.commit(); The cause of the null exception is that a new statement "namespace.getUri(token, parentObject.getUri()).getStore().exclusiveTransientLock(parentObject.getUri().toString());" is added in the structureimpl.java, which will ask for a Xid in the ExtendedStore. The Xid I received is null, when its method is called, the null exception occurs. Be honest, I really do not understand what Xid means, so I have no clue in handle that. Any help will be appreciated, thanks Li
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