FULL PRODUCT VERSION :
java version "9"
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux xxxxxxxx 2.6.39-400.297.3.el6uek.x86_64 #1 SMP Fri Jun 30 10:09:45 PDT 2017 x86_64 x86_64 x86_64 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
Run up jcontrol and go to Web Settings/Java Cache viewer. Select an application and press the delete (red cross) button. Command console shows:

java.util.NoSuchElementException

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run up jcontrol and go to Web Settings/Java Cache viewer. Select an application and press the delete (red cross) button. Command console shows:

java.util.NoSuchElementException

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
No error
ACTUAL -
Exception

ERROR MESSAGES/STACK TRACES THAT OCCUR :
Exception in thread "Thread-7" java.util.NoSuchElementException
        at java.base/java.util.AbstractList$Itr.next(AbstractList.java:377)
        at java.base/java.lang.Iterable.forEach(Iterable.java:74)
        at jdk.deploy.controlpanel/com.sun.deploy.jcp.controller.cacheviewer.CacheViewer$5.run(CacheViewer.java:929)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.base/java.lang.Thread.run(Thread.java:844)


REPRODUCIBILITY :
This bug can be reproduced always.