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From "Rick Hillegas (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-1078) Be able to build Derby when JAVA_HOME is set 1.6
Date Mon, 06 Mar 2006 23:50:32 GMT
Be able to build Derby when JAVA_HOME is set 1.6
------------------------------------------------

         Key: DERBY-1078
         URL: http://issues.apache.org/jira/browse/DERBY-1078
     Project: Derby
        Type: Improvement
    Versions: 10.2.0.0    
    Reporter: Rick Hillegas
     Fix For: 10.3.0.0


Currently, the 1.4 compiler is used to build most of Derby. We use the 1.6 compiler to (optionally)
build the JDBC4 support. If you try to build Derby in a shell window with a 1.6 JAVA_HOME,
the 1.4 bits will fail to build. This is because those bits do not satisfy the JDBC4 contract.
In addition, even if you could build those bits under 1.6, the 1.6 class files would fail
to load on a 1.4 vm.

We need to be able to use 1.6 as our default build environment but still generate jar files
which run on 1.4 and 1.5. There may be compiler switches which allow this. If not, building
in a 1.6 environment could fault in the 1.4 compiler as necessary.

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