ConcurrentModificationException is the result of a fail-fast iterator in
the JDK 1.2+ collections framework. If one thread is iterating a
collection and another thread modifies the collection, the next call to
the iterator will immediately throw this exception. In the ugly old
days of Hashtable and Vector, the results of concurrent modification
were undefined.
You need to rethink your synchronization strategy for whatever shared
data you are initializing in initsequence.jsp.
Jeff
-----Original Message-----
From: Ing. Nicola Folino [mailto:[EMAIL PROTECTED]]
Sent: Friday, March 30, 2001 12:36 AM
To: Orion-Interest
Subject: Concurrent modification
I have a web application with some jsp pages. If I click twice on a link
to another jsp page, I get the exception:
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.next(Unknown Source)
at java.util.Collections$6.nextElement(Unknown Source)
at
__jspPage21_initsequence_jsp._jspService(__jspPage21_initsequence_jsp
.java:38)
at com.orionserver.http.OrionHttpJspPage.service(JAX)
at com.evermind.server.http.HttpApplication.xj(JAX)
at com.evermind.server.http.JSPServlet.service(JAX)
at com.evermind.server.http.d3.sw(JAX)
at com.evermind.server.http.d3.su(JAX)
at com.evermind.server.http.ef.s1(JAX)
at com.evermind.server.http.ef.do(JAX)
at com.evermind.util.f.run(JAX)
Keep in mind that go to the other link through an intermediate page
which uses the directive <jsp:forward page="somePage">. The same
application runs perfectly on JRun, but I saw that Allaire J2EE Server
moves from standard, so I'd like to develope on Orion...
Thanks
