8076543: Add @modules as needed to the langtools tests
Reviewed-by: jjg, shurailine

8062348: langtools tests should close file manager (group 1)
Reviewed-by: darcy

6943119: Rebrand source copyright notices
Reviewed-by: darcy

6638501: Regression with Javac in JDK6 U4 b03?
Summary: replace some String paths with File paths in Paths.java
Reviewed-by: ksrini