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/