Removed @ignore tag from Test6626217.sh, the fix for 7015395 had already solved the issue but left the @ignore tag
Reviewed-by: sla, lfoltan, gtriantafill
Insert 2 second sleep between copying of the src files and the compilation, to make sure the timestamps of *.class files are in the future of *.java files.
Reviewed-by: coleenp, fparain
Added a new test_env.txt file to capture common shell variable. Added concept of COMPILEJAVA for use when TESTJAVA is a JRE. If COMPILEJAVA not set then TESTJAVA will be the default with assumption it is a JDK.
Reviewed-by: kvn, brutisso, coleenp
