When JCK interactive tests that use Robot are executed in single JVM mode, the VM crashes on the 2nd attempt to execute any of the tests by starting the JavaTest agent.

Testsuite name: JCK 9 b44 interactive
Test name: api/java_awt/interactive/MenuShortcutTests.html#MenuShortcutTests (complete list of tests is included below)
Product tested: JDK 9 b132
OS/architecture: Mac OS X Yosemite 10.10.2 (x86_64), El Capitan 10.11
 
Reproducible: Always
Is it a Regression: No
Is it a platform specific issue: Yes

Is it a new (previously unsupported) OS/browser/mode testing: No

Steps to reproduce:
1. Download JCK 9 b44 runtime testsuite
2. java -jar JCK-runtime-9.jar
3. Run test once (this attempt is usually successful) - instructions below.
4. On 2nd attempt to run test, the VM crashes.