[Hawkular-dev] logging bug

Well, that didn't take long. As predicted by John "Trelawney" Sanda, in only took a few days after integrating with jboss logging that we've hit a pretty nasty javac bug. Peter and I have investigated a little and found the following that look related: https://jira.codehaus.org/browse/MCOMPILER-236 https://bugs.openjdk.java.net/browse/JDK-8067747 There are several workarounds that we've discovered: 1) Always do a mvn clean before building. If you "mvn clean install" things work. If you later to "mvn install" you will fail to build. This is "less than optimal" because it requires everyone to always clean before building thus forcing the entire project code to be recompiled each and every time. 2) Move the bsc plugin version down from 2.2.4 to 2.0.2. Though the bus modules build successfully with this, Peter says this causes other things to fail to build (IIRC, alerts was one of them). 3) Set the bsc plugin configuration setting "addCompileSourceRoots" to false (which is the default if not specified, but it is specified today and set to "true" in parent-pom). I am not sure exactly what addCompileSourceRoots does, but I think it adds generated source to the list of source directories that get processed by the annotation processor. I doubt (though I don't know for sure) that our other generated code (like antlr) actually use the jboss logging annotations, so I therefore doubt we actually need this setting to be "true." I have found either of those three work around the issue. I think #3 is probably the best, unless someone knows for sure that we need that setting to be true. FWIW: You can read about the bsc plugin options here: http://bsc-documentation-repo.googlecode.com/svn/trunk/maven-annotation-p... - perhaps there are other settings we can set to workaround the issue?