I have a table in which I use a Foreach to add rows.
When I click on one of the buttons in the table, I am getting a
java.util.ConcurrentModificationException (full stack trace below).
Any ideas why this would happen?
Thanks!
Dave
Stack Trace:
*
java.util.AbstractList$Itr.checkForComodification(AbstractList.java:444)
* java.util.AbstractList$Itr.next(AbstractList.java:421)
*
org.apache.tapestry.components.Foreach.renderComponent(Foreach.java:107)
*
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:857)
*
org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java:624)
* org.apache.tapestry.form.Form.renderComponent(Form.java:362)
*
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:857)
* org.apache.tapestry.form.Form.rewind(Form.java:568)
*
org.apache.tapestry.engine.RequestCycle.rewindForm(RequestCycle.java:435)
* org.apache.tapestry.form.Form.trigger(Form.java:582)
*
org.apache.tapestry.engine.DirectService.service(DirectService.java:169)
*
org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:872)
*
org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:197
)
*
org.apache.tapestry.ApplicationServlet.doPost(ApplicationServlet.java:326)
* javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
* javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
* org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:405)
*
org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicatio
nHandler.java:520)
* org.apache.tapestry.RedirectFilter.doFilter(RedirectFilter.java:106)
*
org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicatio
nHandler.java:511)
*
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandl
er.java:463)
*
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:525)
* org.mortbay.http.HttpContext.handle(HttpContext.java:1457)
*
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext
.java:514)
* org.mortbay.http.HttpContext.handle(HttpContext.java:1409)
* org.mortbay.http.HttpServer.service(HttpServer.java:889)
* org.mortbay.http.HttpConnection.service(HttpConnection.java:829)
* org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:998)
* org.mortbay.http.HttpConnection.handle(HttpConnection.java:846)
*
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
* org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:345)
* org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:530)
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