... Just forgot to provide the patch.
https://dl.dropboxusercontent.com/u/11808666/felix-openjpa.patch Kind regards, Dirk Von: Rudolph, Dirk Gesendet: Montag, 24. März 2014 11:29 An: users@felix.apache.org Cc: Schlag, Rene; Koenig, Thomas Betreff: OpenJPA Support in Apache Felix Hi all, in our current project, we intensively use database access to store information and share it between different (not clustered) instances. As for the persistence layer, we use Apache OpenJPA in an Apache Felix container (CQ5.5) with Apache Aries bundles installed. The setting up faced out some problems related to the special ClassLoader scenario in the OSGI environment. For a detailed related previous discussion have a look at [1] and [2]. To sum up, the most frustrating problem was that the Classes loaded by a special ModuleClassLoader could not be collected by the GC. So, the static PCRegistry of OpenJPA referenced Classes, whose ClassLoader has been closed/invalidated by Felix before and on any further access on these Classes, caused NoClassDefFoundErrors. To solve this issue we implemented a framework extension that registers a BundleListener, cleaning up the PCRegistry every time a Bundle is updated. This code we would like to contribute and any comments are appreciated. [1] http://mail-archives.apache.org/mod_mbox/openjpa-dev/200707.mbox/%3cfbb27544-a571-4c30-af39-e0822f81d...@gmail.com%3E [2] https://issues.apache.org/jira/browse/OPENJPA-285 Kind regards, Dirk Rudolph T-Systems Multimedia Solutions GmbH Organisationseinheit CCS Dirk Rudolph Software-Entwicklung, OCJP Hausanschrift: Riesaer Straße 5, 01129 Dresden Postanschrift: Postfach 10 02 24, 01072 Dresden +49 351 2820-5363 (Tel) E-Mail: dirk.rudo...@t-systems.com <mailto:mdirk.rudo...@t-systems-mms.com> Internet: http://www.t-systems-mms.com <http://www.t-systems-mms.de/> T-Systems Multimedia Solutions GmbH Aufsichtsrat: Thilo Kusch (Vorsitzender) Geschäftsführung: Peter Klingenburg, Susanne Heger, Dr. Rolf Werner Handelsregister: Amtsgericht Dresden HRB 11433 Sitz der Gesellschaft: Dresden Ust-IdNr.: DE 811 807 949
