I am wondering if I can just move all the /framework/widget/src/org/ofbiz/widget/form*.java from 10.04 into my build and have some chance of it building? Fortunately, I have not modified any of this code.
Skip -----Original Message----- From: Adrian Crum [mailto:[email protected]] Sent: Wednesday, May 25, 2011 3:14 PM To: [email protected] Subject: Re: ConcurrentModificationException ???? Linux Skip, The widget models are kept in a memory cache and the model instances are shared among threads. There were a number of thread-safe issues in the 9.x widget models. Some have been fixed, others have Jira issues and still need to be fixed. It is not uncommon for thread-safe bugs to appear sporadically - since the bug is timing-dependent. If you have a specific revision number, I might be able to suggest a fix. -Adrian On 5/25/2011 6:19 PM, SkipDever wrote: > > I am frequently getting a java.util.ConcurrentModificationException from: > > java.util.LinkedList$ListItr.next() > org.ofbiz.widget.form.ModelForm.renderHeaderRow(ModelForm.java:1074) > .... > > I only get this error using a Centos server. Another server running Windows > has no similiar complaint. > > I looked at the code and cannot possibly see how a single copy of the > ModelForm object could be used in multiple threads? The list causing the > grief is the fieldList and a new one is instantiated each time the modelform > is created, i.e. it is not static. > > This server runs for a few days before this error occurs. > > Note that this exception is from 9.0 based ofbiz code. I did a comparison > of the 9x code and the 10.x ModelForm.java code and see that this stuff has > been almost completely rewritten. > > Anyone have any insite? > > Skip >
