https://issues.apache.org/bugzilla/show_bug.cgi?id=51744
Bug #: 51744
Summary: JNDI Lookup Error after a Context is closed
Product: Tomcat 7
Version: 7.0.14
Platform: PC
OS/Version: Linux
Status: NEW
Severity: critical
Priority: P2
Component: Catalina
AssignedTo: dev@tomcat.apache.org
ReportedBy: laferna...@gmail.com
Classification: Unclassified
I was integrating Atomikos into Tomcat to register the transaction manager, and
the lookup for the transaction manager works fine in JNDI, unless someone else,
looks up a JNDI context and closes it. And subsequent calls to lookup the
transaction manager also fails saying java:comp is not found. I went through
the code and found the problem at "org.apache.naming.SelectorContext". When
methods of that class is calls, those are delegated to a Context received
through "getBoundContext()", which returns a "org.apache.naming.NamingContext"
object. And these are stored in a map in ContextBindings class. So the
getBoundContext checks this cache, and if it's found it returns it or else,
create a new object and store it and returns it. So the problem happens, if
someone calls "close()" in the NamingContext object. Then it's implemented in
the following way,
public void close()
throws NamingException {
env.clear();
}
Which just clears the environment, but it doesn't in no way invalidate that
cache in the ContextBindings class to remove its entry. So in the next time
also when getBoundContext is called to get the same context, it will return the
earlier 'closed' context without creating a new one. And the environment it has
would be cleared and subsequent lookups done from that will fail.
So I guess the proper fix would be to remove that context from ContextBinding's
cache when its close method is closed.
Cheers,
Anjana.
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