[ http://issues.apache.org/jira/browse/DERBY-1078?page=comments#action_12375458 ]
Andrew McIntyre commented on DERBY-1078: ---------------------------------------- Committed another patch with revision 395749 to get client and demo working with 1.3 when compiled with 1.5 or higher. Unlike the engine, 1.3- and 1.4-dependent code are not well separated. So, fixed by asking the compiler to generate 1.3-compatible classes, but linked against the 1.4 runtime classes. Client now passes the jdbcapi suite. Also fixed demo just by switching entirely over to 1.3. It was not dependent on any 1.4-specific methods. This just leaves scouring the java/testing hierarchy for the remaining classes which should be built as 1.3, but are currently compiled by a 1.4 dependent target. This is quite a few tests, but they are easily identifiable because they error out immediately with UnsupportedClassVersionError. > 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 > Components: Build tools > Versions: 10.2.0.0 > Reporter: Rick Hillegas > Fix For: 10.3.0.0 > Attachments: derby-1078.diff, derby-1078_part2.diff > > 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. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
