libbtm-java version 2.1.2-1ubuntu2 failed to build with openjdk-7 as default-jdk

During a rebuild test with default-jdk switched to openjdk-7 (as it is in quantal), a build failure was detected for libbtm-java version 2.1.2-1ubuntu2.

See attached log for full build failure details.

https://wiki.ubuntu.com/JavaTeam/Java7Default contains more details of how to diagnose and resolve these types of issues.

This log snippet might also be of interest:

Total time: 0 seconds
   debian/rules override_dh_clean
make[1]: Entering directory `/«PKGBUILDDIR»'
dh_clean
rm -rf /«PKGBUILDDIR»/debian/.mh
rm -rf target/*
rm -f TESTS-TestSuites.xml
rm -f src/bitronix/tm/Version.java
make[1]: Leaving directory `/«PKGBUILDDIR»'
 debian/rules build
dh build
   dh_testdir
   dh_auto_configure
   debian/rules override_dh_auto_build
make[1]: Entering directory `/«PKGBUILDDIR»'
CLASSPATH=/usr/share/java/slf4j-api.jar:/usr/share/java/geronimo-jms-1.1-spec-1.1.jar:/usr/share/java/geronimo-jta-1.0.1b-spec.jar:/usr/share/java/mockito-core.jar ant -Djar.version=2.1.2
Buildfile: /«PKGBUILDDIR»/build.xml

clean:

build:
    [mkdir] Created dir: /«PKGBUILDDIR»/dist/classes
    [javac] /«PKGBUILDDIR»/build.xml:45: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds
    [javac] Compiling 133 source files to /«PKGBUILDDIR»/dist/classes
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 1.5
    [javac] /«PKGBUILDDIR»/src/bitronix/tm/resource/jdbc/PoolingDataSource.java:48: error: PoolingDataSource is not abstract and does not override abstract method getParentLogger() in CommonDataSource
    [javac] public class PoolingDataSource extends ResourceBean implements DataSource, XAResourceProducer, PoolingDataSourceMBean {
    [javac] ^
    [javac] /«PKGBUILDDIR»/src/bitronix/tm/resource/jdbc/lrc/LrcXADataSource.java:37: error: LrcXADataSource is not abstract and does not override abstract method getParentLogger() in CommonDataSource
    [javac] public class LrcXADataSource implements XADataSource {
    [javac] ^
    [javac] Note: Some input files use unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 2 errors
    [javac] 1 warning

BUILD FAILED
/«PKGBUILDDIR»/build.xml:45: Compile failed; see the compiler error output for details.

Total time: 4 seconds
make[1]: *** [override_dh_auto_build] Error 1
make[1]: Leaving directory `/«PKGBUILDDIR»'
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
────────────────────────────────────────────────────────────────────────────────
Build finished at 20120606-1052

Finished
────────

E: Build failure (dpkg-buildpackage died)