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 cassandra-dev by Kirk True, 1 year ago
This exception has no message.
via incubator-cassandra-dev by Kirk True, 1 week ago
This exception has no message.
via GitHub by kdlan
, 2 years ago
via Google Groups by Owen Tran, 1 year ago
via GitHub by fbettag
, 2 years ago
java.util.ConcurrentModificationException: 	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:810)	at java.util.HashMap$KeyIterator.next(HashMap.java:845)	at org.apache.cassandra.dht.BootStrapper.getBootstrapSource(BootStrapper.java:146)	at org.apache.cassandra.dht.BootStrapper.getBalancedToken(BootStrapper.java:135)	at org.apache.cassandra.dht.BootStrapper.getBootstrapTokens(BootStrapper.java:115)	at org.apache.cassandra.service.StorageService.joinTokenRing(StorageService.java:611)	at org.apache.cassandra.service.StorageService.initServer(StorageService.java:499)	at org.apache.cassandra.service.StorageService.initServer(StorageService.java:397)	at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:309)	at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:397)	at CassandraServer.start(CassandraServer.java:415)