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 Apache Bugzilla by jens_0, 9 months ago
via apache.org by Unknown author, 1 year ago
via Atlassian JIRA by Alex Wei [Atlassian], 1 year ago
via Atlassian JIRA by Alex Wei [Atlassian], 2 years ago
via researchgate.net by Unknown author, 2 years ago
via Appcelerator JIRA by Praveen Innamuri, 1 year ago
java.util.ConcurrentModificationException: 	at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)	at java.util.AbstractList$Itr.next(AbstractList.java:343)	at org.apache.jmeter.protocol.http.gui.HTTPArgumentsPanel.getUnclonedParameters(HTTPArgumentsPanel.java:113)	at org.apache.jmeter.protocol.http.gui.HTTPArgumentsPanel.createTestElement(HTTPArgumentsPanel.java:92)	at org.apache.jmeter.protocol.http.config.gui.UrlConfigGui.modifyTestElement(UrlConfigGui.java:198)	at org.apache.jmeter.protocol.http.config.gui.MultipartUrlConfigGui.modifyTestElement(MultipartUrlConfigGui.java:60)	at org.apache.jmeter.protocol.http.control.gui.HttpTestSampleGui.modifyTestElement(HttpTestSampleGui.java:115)	at org.apache.jmeter.gui.tree.JMeterTreeModel.addComponent(JMeterTreeModel.java:132)	at org.apache.jmeter.protocol.http.proxy.ProxyControl.placeSampler(ProxyControl.java:805)	at org.apache.jmeter.protocol.http.proxy.ProxyControl.deliverSampler(ProxyControl.java:409)	at org.apache.jmeter.protocol.http.proxy.Proxy.run(Proxy.java:296)