- Define javac.source=1.5 in projectized.xml or some file imported by
projectized.xml.
- Open a projectA that import this projectized.xml
- Write a test target in projectA build.xml that just print out the value of
javac.source, to verify that it does take effect.
- Open a java source file and try adding code with 1.5 generic syntax like:
List<String> nameList = new ArrayList();
- Got syntax error red-underlining and tool-tip text of "generics are not
supported in -source 1.4 (try -source 1.5 to enable generic".

If I put javac.source=1.5 directly in nbproject/project.properties, I will not
get the 1.5 syntax error warning red underline.  However, requiring this to be
done by every project is not good.  We have to be able to set javac.source to a
a default value for all projects in an environment.