tomcat7 version 7.0.22-1 failed to build with openjdk-7

During a rebuild test on precise with default-jdk switched to openjdk-7, a build failure was detected for tomcat7 version 7.0.22-1.

See attached log for full build failure details.

This log snippet might also be of interest:

 [txt2html] Converted 4 files to /«PKGBUILDDIR»/output/build/webapps/examples/jsp/jsp2/jspattribute
 [txt2html] Converted 4 files to /«PKGBUILDDIR»/output/build/webapps/examples/jsp/cal
 [txt2html] Converted 1 file to /«PKGBUILDDIR»/output/build/webapps/examples/jsp/jsptoserv
 [txt2html] Converted 1 file to /«PKGBUILDDIR»/output/build/webapps/examples/jsp/jsp2/el
 [txt2html] Converted 2 files to /«PKGBUILDDIR»/output/build/webapps/examples/jsp/jsp2/el
 [txt2html] Converted 3 files to /«PKGBUILDDIR»/output/build/webapps/examples/jsp/jsp2/el
 [txt2html] Converted 1 file to /«PKGBUILDDIR»/output/build/webapps/examples/jsp/jsp2/misc
 [txt2html] Converted 4 files to /«PKGBUILDDIR»/output/build/webapps/examples/jsp/jsp2/tagfiles
 [txt2html] Converted 51 files to /«PKGBUILDDIR»/output/build/webapps/examples
     [copy] Warning: Could not find file /usr/share/java/tomcat-deps/dbcp/tomcat-dbcp.jar to copy.
     [copy] Copying 1 file to /«PKGBUILDDIR»/output/build/lib
     [echo] Building Tomcat JDBC pool libraries

prepare:
    [mkdir] Created dir: /«PKGBUILDDIR»/modules/jdbc-pool/output/build
    [mkdir] Created dir: /«PKGBUILDDIR»/modules/jdbc-pool/output/classes
    [mkdir] Created dir: /«PKGBUILDDIR»/modules/jdbc-pool/output/testclasses
     [copy] Copying 7 files to /«PKGBUILDDIR»/modules/jdbc-pool/output

download:

build:
    [javac] Compiling 28 source files to /«PKGBUILDDIR»/modules/jdbc-pool/output/classes
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 1.5
    [javac] /«PKGBUILDDIR»/modules/jdbc-pool/src/main/java/org/apache/tomcat/jdbc/pool/DataSource.java:39: error: DataSource is not abstract and does not override abstract method getParentLogger() in CommonDataSource
    [javac] public class DataSource extends DataSourceProxy implements javax.sql.DataSource,MBeanRegistration, org.apache.tomcat.jdbc.pool.jmx.ConnectionPoolMBean, javax.sql.ConnectionPoolDataSource {
    [javac] ^
    [javac] /«PKGBUILDDIR»/modules/jdbc-pool/src/main/java/org/apache/tomcat/jdbc/pool/XADataSource.java:20: error: XADataSource is not abstract and does not override abstract method getParentLogger() in CommonDataSource
    [javac] public class XADataSource extends DataSource implements javax.sql.XADataSource {
    [javac] ^
    [javac] Note: /«PKGBUILDDIR»/modules/jdbc-pool/src/main/java/org/apache/tomcat/jdbc/pool/interceptor/SlowQueryReport.java uses or overrides a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [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:864: The following error occurred while executing this line:
/«PKGBUILDDIR»/modules/jdbc-pool/build.xml:149: Compile failed; see the compiler error output for details.

Total time: 34 seconds
make: *** [build-stamp] Error 1
dpkg-buildpackage: error: debian/rules build gave error exit status 2
────────────────────────────────────────────────────────────────────────────────
Build finished at 20111110-1704

Finished
────────

E: Build failure (dpkg-buildpackage died)