This test seems to want to write into the test tree. Could this test be examined to see if this is necessary as it should be possible to run the tests on a read-only file system.

Here's the failure I see when it tries to write to the test directory.

----------System.err:(6/387)----------
Exception in thread "main" java.io.FileNotFoundException: /u/alanb/ws/tl/jdk/test/sun/security/provider/KeyStore/empty.jks (Permission denied)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:206)
at java.io.FileOutputStream.<init>(FileOutputStream.java:95)
at DKSTest.main0(DKSTest.java:122)
at DKSTest.main(DKSTest.java:64)