Description
While running AEM 6.3 which uses oak 1.6.1 the following exception was seen in the logs:
Stacktrace:
java.lang.NullPointerException: null
at org.apache.jackrabbit.oak.jcr.session.NodeImpl$37.checkPreconditions(NodeImpl.java:1449)
at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.prePerform(SessionDelegate.java:615)
at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.perform(SessionDelegate.java:205)
at org.apache.jackrabbit.oak.jcr.session.ItemImpl.perform(ItemImpl.java:112)
at org.apache.jackrabbit.oak.jcr.session.NodeImpl.internalRemoveProperty(NodeImpl.java:1444)
at org.apache.jackrabbit.oak.jcr.session.NodeImpl.setProperty(NodeImpl.java:354)
....... AEM Code
I have reproduced the NPE with the following code:
Node parent = session.getRootNode().addNode("parent", "nt:unstructured"); Node child = parent.addNode("child", "nt:unstructured"); child.addMixin("mix:versionable"); session.save(); session.getWorkspace().getVersionManager().checkin(child.getPath()); Node node = (Node) session.getItem("/parent/child"); node.setProperty("inexistent", (Value) null);