RFR: JDK-8220295: sun/tools/jps/TestJps.java still timing out

[gary.adams at oracle.com]

This proposed change will configure the sun/tools/j* and
com/sun/tools/attach tests to be labeled as jtreg exclusiveAccess.dirs
so the java attaching tests are not run concurrently.

There is only annecdotal observations that multiple
tools are running when these tests are timing out.
1000s of test runs have succeeded with this change in place.

More investigation can be done to find the root cause
of these failures, but for now it's best to make the tests
run more reliably without timing out.

   Issues:
     https://bugs.openjdk.java.net/browse/JDK-8220242
     https://bugs.openjdk.java.net/browse/JDK-8220295

   Webrev:
     http://cr.openjdk.java.net/~gadams/8220295/webrev/