[15, testbug]: 8248306: gc/stress/gclocker/TestExcessGCLockerCollections.java does not compile

[Thomas Schatzl]

Hi all,

   can I have reviews for this testbug?

Since JDK-8244010: Simplify usages of 
ProcessTools.createJavaProcessBuilder in our tests the 
gc/stress/gclocker/TestExcessGCLockerCollections.java test does not 
compile any more because its use of 
ProcessTools.createJavaProcessBuilder has not been updated.

I simply replaced the ProcessTools.createJavaProcessBuilder() call by 
ProcessTools.executeTestJvm which according to the discussion for 
8244010 does the right thing.

I would like to fix this in 15, because 8244010 is in 15.

CR:
https://bugs.openjdk.java.net/browse/JDK-8248306
Webrev:
http://cr.openjdk.java.net/~tschatzl/8248306/webrev/
Testing:
local run of the test

Thanks,
   Thomas