This has been observed on Solaris Sparcv9.
It timed out, but actually there are NoClassDefFoundErr in system err:

----------System.err:(66/5876)----------
java.lang.NoClassDefFoundError: Could not initialize class java.util.concurrent.locks.LockSupport
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.unparkSuccessor(AbstractQueuedSynchronizer.java:697)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.cancelAcquire(AbstractQueuedSynchronizer.java:814)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:907)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1226)
at java.base/java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:267)
at java.logging/java.util.logging.LogManager.ensureLogManagerInitialized(LogManager.java:358)
at java.logging/java.util.logging.LogManager.getLogManager(LogManager.java:430)
at java.logging/java.util.logging.Logger.demandLogger(Logger.java:650)
at java.logging/java.util.logging.Logger.getLogger(Logger.java:719)
at java.logging/java.util.logging.Logger.getLogger(Logger.java:703)
at TestGetGlobalConcurrent.test2(TestGetGlobalConcurrent.java:81)
at TestGetGlobalConcurrent$Run2.run(TestGetGlobalConcurrent.java:142)
at TestGetGlobalConcurrent$WaitAndRun.run(TestGetGlobalConcurrent.java:131)
at java.base/java.lang.Thread.run(Thread.java:844)
java.lang.NoClassDefFoundError: Could not initialize class java.util.concurrent.locks.LockSupport
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:871)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:903)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1226)
at java.base/java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:267)
at java.logging/java.util.logging.LogManager.ensureLogManagerInitialized(LogManager.java:358)
at java.logging/java.util.logging.LogManager.getLogManager(LogManager.java:430)
at java.logging/java.util.logging.Logger.getGlobal(Logger.java:505)
at TestGetGlobalConcurrent.main(TestGetGlobalConcurrent.java:172)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:543)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:110)
at java.base/java.lang.Thread.run(Thread.java:844)
java.lang.NoClassDefFoundError: Could not initialize class java.util.concurrent.locks.LockSupport
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:871)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:903)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1226)
at java.base/java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:267)
at java.logging/java.util.logging.LogManager.ensureLogManagerInitialized(LogManager.java:358)
at java.logging/java.util.logging.LogManager.getLogManager(LogManager.java:430)
at TestGetGlobalConcurrent.test3(TestGetGlobalConcurrent.java:93)
at TestGetGlobalConcurrent$Run3.run(TestGetGlobalConcurrent.java:145)
at TestGetGlobalConcurrent$WaitAndRun.run(TestGetGlobalConcurrent.java:131)
at java.base/java.lang.Thread.run(Thread.java:844)
java.lang.NoClassDefFoundError: Could not initialize class java.util.concurrent.locks.LockSupport
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.unparkSuccessor(AbstractQueuedSynchronizer.java:697)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.cancelAcquire(AbstractQueuedSynchronizer.java:814)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:907)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1226)
at java.base/java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:267)
at java.logging/java.util.logging.LogManager.ensureLogManagerInitialized(LogManager.java:358)
at java.logging/java.util.logging.LogManager.getLogManager(LogManager.java:430)
at java.logging/java.util.logging.Logger.getGlobal(Logger.java:505)
at TestGetGlobalConcurrent.test1(TestGetGlobalConcurrent.java:69)
at TestGetGlobalConcurrent$Run1.run(TestGetGlobalConcurrent.java:139)
at TestGetGlobalConcurrent$WaitAndRun.run(TestGetGlobalConcurrent.java:131)
at java.base/java.lang.Thread.run(Thread.java:844