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Java versions

  • Trunk (i.e. OpenJPA 2.0.0 currently) requires JDK 1.6 or 1.5. Note that some functionality that requires JDK 1.6 will not be available if you choose to build with JDK 1.5.
  • Building javadoc from Trunk requires JDK 1.6.
  • OpenJPA 1.3.x, 1.2.x and 1.1.x branches requires JDK 1.5.
  • OpenJPA 1.0.x branch requires JDK 1.5 or 1.4.

Maven versions

  • Trunk, 1.3.x, 1.2.x, 1.1.x and 1.0.x all require Maven 2.0.5 or later (2.0.9 is recommended)

Runtime Dependencies

The binary release download of OpenJPA includes all of the code needed to run in a stand-alone Java SE JVM or within a Java EE application server.
For example, the OpenJPA 1.2.1 release download apache-openjpa-1.2.1-binary.zip includes the following required OpenJPA artifact under apache-openjpa-1.2.1/: \

  • openjpa-1.2.1.jar

and the following required runtime dependencies under apache-openjpa-1.2.1/lib/:

  • commons-collections-3.2.jar
  • commons-lang-2.1.jar
  • commons-pool-1.3.jar
  • serp-1.13.1.jar

The following artifacts under lib/ are only needed for Java SE environments, as a Java EE application server should provide an implementation:

  • geronimo-jpa_3.0_spec-1.0.jar
  • geronimo-jta_1.1_spec-1.1.jar

The following is optional, as you should include the JDBC driver artifacts required by your database provider and supported by OpenJPA:

  • derby-10.2.2.0.jar


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