Most of the tests are failing with:

java.lang.NullPointerException
at com.sun.javatest.regtest.JDK.hasModules(JDK.java:245)
at com.sun.javatest.regtest.BuildAction.useIgnoreSymbolFile(BuildAction.java:339)
at com.sun.javatest.regtest.BuildAction.compileFiles(BuildAction.java:295)
at com.sun.javatest.regtest.BuildAction.compileLibrary(BuildAction.java:258)
at com.sun.javatest.regtest.BuildAction.run(BuildAction.java:236)
at com.sun.javatest.regtest.BuildAction.build(BuildAction.java:84)
at com.sun.javatest.regtest.MainAction.build(MainAction.java:337)
at com.sun.javatest.regtest.TestNGAction.build(TestNGAction.java:109)
at com.sun.javatest.regtest.MainAction.run(MainAction.java:295)
at com.sun.javatest.regtest.RegressionScript.run(RegressionScript.java:225)
at com.sun.javatest.Script.run(Script.java:228)
at com.sun.javatest.DefaultTestRunner.runTest(DefaultTestRunner.java:174)
at com.sun.javatest.DefaultTestRunner.access$100(DefaultTestRunner.java:43)
at com.sun.javatest.DefaultTestRunner$1.run(DefaultTestRunner.java:66)