It seems between openjdk-7 versions 7u51-2.4.6-1ubuntu4 and 7u71-2.5.3-0ubuntu0.14.04.1 (now in trusty-security) the file /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/pulse-java.jar was dropped, breaking some development environments.
It seems between openjdk-7 versions 7u51-2.4.6-1ubuntu4 and 7u71-2. 5.3-0ubuntu0. 14.04.1 (now in trusty-security) the file /usr/lib/ jvm/java- 7-openjdk- amd64/jre/ lib/ext/ pulse-java. jar was dropped, breaking some development environments.