Random Generator

If rate along with unit (optionally) is changed too frequently, e.g. through another custom component, following error is thrown (seen on java web start console) -

java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
at java.util.HashMap$KeyIterator.next(Unknown Source)
at com.eviware.loadui.groovy.GroovyContextSupport.cancelTasks(GroovyContextSupport.java:256)
at sun.reflect.GeneratedMethodAccessor71.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1055)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:885)
at org.codehaus.groovy.runtime.InvokerHelper.invokePojoMethod(InvokerHelper.java:781)
at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:772)
at com.eviware.loadui.groovy.GroovyScriptSupport$ScriptMetaClass.doInvokeMethod(GroovyScriptSupport.java:221)
at com.eviware.loadui.groovy.GroovyScriptSupport$ScriptMetaClass.invokeMethod(GroovyScriptSupport.java:202)
at groovy.lang.GroovyObjectSupport.invokeMethod(GroovyObjectSupport.java:44)
at groovy.lang.Script.invokeMethod(Script.java:78)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeOnDelegationObjects(ClosureMetaClass.java:407)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:346)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:885)
at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:66)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:137)
at GroovycomeviwareRandom$_run_closure3.doCall(GroovycomeviwareRandom:82)
at sun.reflect.GeneratedMethodAccessor70.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:272)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:885)
at groovy.lang.Closure.call(Closure.java:405)
at groovy.lang.Closure.call(Closure.java:418)
at com.eviware.loadui.groovy.GroovyContextSupport$2.handleEvent(GroovyContextSupport.java:211)
at com.eviware.loadui.util.events.EventSupport$PendingEvent.run(EventSupport.java:160)
at com.eviware.loadui.util.events.EventSupport$1.run(EventSupport.java:43)
at java.lang.Thread.run(Unknown Source)


Also Base Rate value and displayed Current Rate gets out of sync.