Several jdk_lang tests fail in samevm mode:

test/java/lang/System/ExitFinalizersAndJIT.java
test/java/lang/Thread/GenerifyStackTraces.java
test/java/lang/Thread/StackTraces.java
test/java/lang/management/ClassLoadingMXBean/LoadCounts.java
test/java/lang/management/ManagementFactory/MXBeanProxyTest.java
test/java/lang/management/MemoryMXBean/CollectionUsageThreshold.java
test/java/lang/management/MemoryMXBean/LowMemoryTest.java
test/java/lang/management/MemoryMXBean/MemoryManagement.java
test/java/lang/management/MemoryMXBean/Pending.java
test/java/lang/management/MemoryMXBean/ResetPeakMemoryUsage.java
test/java/lang/management/MemoryPoolMXBean/ThresholdTest.java
test/java/lang/management/RuntimeMXBean/UpTime.java
test/java/lang/management/ThreadMXBean/AllThreadIds.java
test/java/lang/management/ThreadMXBean/DisableTest.java
test/java/lang/management/ThreadMXBean/EnableTest.java
test/java/lang/management/ThreadMXBean/FindDeadlocks.java
test/java/lang/management/ThreadMXBean/FindMonitorDeadlock.java
test/java/lang/management/ThreadMXBean/Locks.java
test/java/lang/reflect/Proxy/Boxing.java
test/java/lang/reflect/Proxy/ClassRestrictions.java
test/java/lang/reflect/Proxy/returnTypes/Test.java