Initialization/finalization of libxml2 in wrong place
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Key: AXIS2C-1539
URL: https://issues.apache.org/jira/browse/AXIS2C-1539
Project: Axis2-C
Issue Type: Bug
Components: core/clientapi, xml/parser
Affects Versions: 1.6.0
Environment: Windows XP SP2
Reporter: Halewijn Geerts
Initialization of libxml2 is done in axis2_op_client_create and finalization in
axis2_op_client_free. So if you have generated stub code, this initializing
will be done for each stub operation, and finalizes when stub is freed. If
another part of the application uses libxml2, then that code can crash, because
libxml2 is already freed by axis2/c
Documentation of libxml2 says that xmlInitParser should only be called once and
preferably from the main thread. xmlInitParser can not be called from 2 threads
at the same time. Also after calling xmlCleanupParser, no calls to libxml2 may
be done anymore, also not from a different thread.
To Reproduce crash on Windows:
Initialize libxml2 in main thread, create client stub in background thread and
call one of its operations, afterwards free the stub. If you now do a call to
libxml2 in the main thread, your application will crash.
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