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https://issues.apache.org/jira/browse/COCOON-1574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12599018#action_12599018
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jashajoachimsthal edited comment on COCOON-1574 at 5/22/08 7:03 AM:
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AbstractJXPathModule.getAttribute() now always returns an Object of type String
instead of any Object which breaks implementations that do not expect a String.
was (Author: jashajoachimsthal):
JXPathHelper.getAttribute() now always returns an Object of type String
instead of any Object which breaks implementations that do not expect a String.
> Memory Leak with XMLFileModule
> ------------------------------
>
> Key: COCOON-1574
> URL: https://issues.apache.org/jira/browse/COCOON-1574
> Project: Cocoon
> Issue Type: Bug
> Components: * Cocoon Core
> Affects Versions: 2.2
> Environment: Operating System: Windows XP
> Platform: PC
> Reporter: Ron Blaschke
> Assignee: Ralph Goers
> Fix For: 2.1.11
>
>
> I'm currently looking into a memory leak issue at Apache Forrest. Forrest's
> site currently needs to be built with -Xmx128m because of this. I believe the
> issue is originated at Cocoon's LinkRewriterTransformer or XMLFileModule.
> A memory profiler shows lots (30MB+) of DOM DocumentImpls (150+ objects),
> which
> get referenced by XMLFileModule.DocumentHelper. Their URIs are linkmap-xxx.
> LinkRewriterTransformer#createTransformedLink(String) uses a
> InputModuleHelper,
> which seems to reference a XMLFileModule.
> ...
> newLink = (String) modHelper.getAttribute(this.objectModel,
> ^^^^^^^^^
> ...
> The XMLFileModule keeps the visited documents in a map, which is where they
> build up.
> Just for testing, I changed XMLFileModule#getDocumentHelper(Configuration)
> from
> this.documents.put(src, new DocumentHelper(reload, cache, src, this));
> to
> return new DocumentHelper(reload, cache, src, this);
> Thus, a new DocumentHelper is created every time, instead of caching them.
> The
> result: No more memory problems, Apache Forrest's site builds again with
> -Xmx32.
> Ron
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