Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Oracle Community by 3004, 1 year ago
via Oracle Community by 3004, 1 year ago
This exception has no message.
via Google Groups by laurent, 2 years ago
via Ecosystem JIRA by Jacek Jaroczynski, 2 years ago
This exception has no message.
via GitHub by ItsHarry
, 2 years ago
This exception has no message.
via GitHub by fbettag
, 2 years ago
java.util.ConcurrentModificationException: 	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:762)	at java.util.HashMap$KeyIterator.next(HashMap.java:798)	at serp.util.LookaheadIterator.setNext(LookaheadIterator.java:135)	at serp.util.LookaheadIterator.next(LookaheadIterator.java:60)	at com.solarmetric.kodo.runtime.datacache.query.QueryCacheImpl.notifyChangedClasses(QueryCacheImpl.java:139)	at com.solarmetric.kodo.runtime.datacache.DataCacheStoreManager.commit(DataCacheStoreManager.java:407)	at com.solarmetric.kodo.runtime.PersistenceManagerImpl.endTransaction(PersistenceManagerImpl.java:829)	at com.solarmetric.kodo.runtime.PersistenceManagerImpl.commit(PersistenceManagerImpl.java:509)	at com.ewarna.handlers.storage.TestCaseAccountHandler$3.execute(TestCaseAccountHandler.java:209)	at com.ewarna.managers.JDOCallBackExecutor.execute(JDOCallBackExecutor.java:48)	at com.ewarna.handlers.storage.TestCaseAccountHandler.test202_ModifyAccount(TestCaseAccountHandler.java:215)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:324)	at junit.framework.TestCase.runTest(TestCase.java:154)	at junit.framework.TestCase.runBare(TestCase.java:127)	at junit.framework.TestResult$1.protect(TestResult.java:106)	at junit.framework.TestResult.runProtected(TestResult.java:124)	at junit.framework.TestResult.run(TestResult.java:109)	at junit.framework.TestCase.run(TestCase.java:118)	at junit.framework.TestSuite.runTest(TestSuite.java:208)	at junit.framework.TestSuite.run(TestSuite.java:203)	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:325)	at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:524)