Jason Greene [
http://community.jboss.org/people/jason.greene] created the discussion
"Re: Using JAXB and see java.lang.ClassNotFoundException:
__redirected/__DatatypeFactory"
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http://community.jboss.org/message/622967#622967
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My above answer is not entirely accurate. The TCCL needs to point to any module
classloader (all of them can see __redirected). In some cases TCCL might be null, in which
case the boot classpath is used and __redirected is not seen. Before calling into any JAXP
factory (any newInstance()) just make sure you set TCCL to point to your module
classloader (and reset it back to the original in finally block)
One important clarification point though is that if this is an EE deployment executing in
an EE context (like say servlet init), then it has TCCL set to the deployment (which is
correct). If you are taking an action on behalf of the user (e.g. it is expected that
THEIR JAXP impls be used), then you can safely reuse this. If however it is an
implementation detail of your subsystem, then you want your versions to be used and not
theirs.
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