fork-function-var-error3.txt

$ basex fork-function-var.xq 
org.basex.core.BaseXException: Improper use? Potential bug? Your feedback is welcome:
Contact: basex-talk@mailman.uni-konstanz.de
Version: BaseX 8.5.2 beta 010a30f
Java: Oracle Corporation, 1.7.0_101
OS: Linux, amd64
Stack Trace: 
java.lang.NoClassDefFoundError: Could not initialize class java.util.concurrent.locks.AbstractQueuedSynchronizer$Node
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1197)
	at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:214)
	at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:290)
	at java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:509)
	at java.util.concurrent.ForkJoinTask.reportResult(ForkJoinTask.java:596)
	at java.util.concurrent.ForkJoinTask.join(ForkJoinTask.java:640)
	at java.util.concurrent.ForkJoinPool.invoke(ForkJoinPool.java:1521)
	at org.basex.query.func.xquery.XQueryForkJoin.value(XQueryForkJoin.java:32)
	at org.basex.query.func.xquery.XQueryForkJoin.iter(XQueryForkJoin.java:47)
	at org.basex.query.QueryContext.iter(QueryContext.java:406)
	at org.basex.query.expr.constr.Constr.add(Constr.java:69)
	at org.basex.query.expr.constr.CElem.item(CElem.java:94)
	at org.basex.query.expr.constr.CElem.item(CElem.java:1)
	at org.basex.query.expr.ParseExpr.value(ParseExpr.java:65)
	at org.basex.query.QueryContext.value(QueryContext.java:417)
	at org.basex.query.expr.gflwor.Let$LetEval.next(Let.java:186)
	at org.basex.query.expr.gflwor.GFLWOR$1.next(GFLWOR.java:96)
	at org.basex.query.MainModule$1.next(MainModule.java:122)
	at org.basex.core.cmd.AQuery.query(AQuery.java:96)
	at org.basex.core.cmd.XQuery.run(XQuery.java:22)
	at org.basex.core.Command.run(Command.java:253)
	at org.basex.core.Command.execute(Command.java:99)
	at org.basex.api.client.LocalSession.execute(LocalSession.java:132)
	at org.basex.api.client.Session.execute(Session.java:36)
	at org.basex.core.CLI.execute(CLI.java:103)
	at org.basex.BaseX.<init>(BaseX.java:121)
	at org.basex.BaseX.main(BaseX.java:42)

	at org.basex.core.Command.execute(Command.java:100)
	at org.basex.api.client.LocalSession.execute(LocalSession.java:132)
	at org.basex.api.client.Session.execute(Session.java:36)
	at org.basex.core.CLI.execute(CLI.java:103)
	at org.basex.BaseX.<init>(BaseX.java:121)
	at org.basex.BaseX.main(BaseX.java:42)
Improper use? Potential bug? Your feedback is welcome:
Contact: basex-talk@mailman.uni-konstanz.de
Version: BaseX 8.5.2 beta 010a30f
Java: Oracle Corporation, 1.7.0_101
OS: Linux, amd64
Stack Trace: 
java.lang.NoClassDefFoundError: Could not initialize class java.util.concurrent.locks.AbstractQueuedSynchronizer$Node
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1197)
	at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:214)
	at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:290)
	at java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:509)
	at java.util.concurrent.ForkJoinTask.reportResult(ForkJoinTask.java:596)
	at java.util.concurrent.ForkJoinTask.join(ForkJoinTask.java:640)
	at java.util.concurrent.ForkJoinPool.invoke(ForkJoinPool.java:1521)
	at org.basex.query.func.xquery.XQueryForkJoin.value(XQueryForkJoin.java:32)
	at org.basex.query.func.xquery.XQueryForkJoin.iter(XQueryForkJoin.java:47)
	at org.basex.query.QueryContext.iter(QueryContext.java:406)
	at org.basex.query.expr.constr.Constr.add(Constr.java:69)
	at org.basex.query.expr.constr.CElem.item(CElem.java:94)
	at org.basex.query.expr.constr.CElem.item(CElem.java:1)
	at org.basex.query.expr.ParseExpr.value(ParseExpr.java:65)
	at org.basex.query.QueryContext.value(QueryContext.java:417)
	at org.basex.query.expr.gflwor.Let$LetEval.next(Let.java:186)
	at org.basex.query.expr.gflwor.GFLWOR$1.next(GFLWOR.java:96)
	at org.basex.query.MainModule$1.next(MainModule.java:122)
	at org.basex.core.cmd.AQuery.query(AQuery.java:96)
	at org.basex.core.cmd.XQuery.run(XQuery.java:22)
	at org.basex.core.Command.run(Command.java:253)
	at org.basex.core.Command.execute(Command.java:99)
	at org.basex.api.client.LocalSession.execute(LocalSession.java:132)
	at org.basex.api.client.Session.execute(Session.java:36)
	at org.basex.core.CLI.execute(CLI.java:103)
	at org.basex.BaseX.<init>(BaseX.java:121)
	at org.basex.BaseX.main(BaseX.java:42)