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Posted to j-users@xerces.apache.org by Avihai Marchiano <am...@mercado.com> on 2007/01/08 20:54:42 UTC
Memory leak in DomParser
Hey,
I am using xerces ver #2.2 and I am using a lot in DomParser.
After some time (around 36 hours) I get OutOfMemory.
I test my application with JProbe memory debugger and I notice that a
lot of resources (especially String) were not released after parsing was
finished and garbage collector was run.
The only related topic that I found is:
http://mail-archives.apache.org/mod_mbox/xerces-j-users/200212.mbox/%3c2
fb0968997d93980d2275a9d36e6e99f@www3.mail.post.cz%3e
But there is no answer.
Please, give your advices.
Thank you.
My code is:
DOMParser parser = new DOMParser();
XMLParserErrorHandler xmlParserErrorHandler = new
XMLParserErrorHandler();
parser.setErrorHandler(xmlParserErrorHandler);
parser.setFeature("http://xml.org/sax/features/validation",
true);
parser.setFeature("http://apache.org/xml/features/validation/schema",
true);
StringBuffer sb = new StringBuffer(SCHEMA_NS_URI);
sb.append(" ");
sb.append(new File(SCHEMA_XSD_LOCATION).toURI().toString());
parser.setProperty("http://apache.org/xml/properties/schema/external-sch
emaLocation",
sb.toString());
parser.setFeature("http://xml.org/sax/features/namespaces",true);
m_document = null;
parser.parse(new InputSource(new
FileInputStream(schemaFile)));
m_document = parser.getDocument();
RE: Memory leak in DomParser
Posted by Avihai Marchiano <am...@mercado.com>.
I check it also in 2.9, and the problem still exists.
-----Original Message-----
From: Michael Glavassevich [mailto:mrglavas@ca.ibm.com]
Sent: Monday, January 08, 2007 10:50 PM
To: j-users@xerces.apache.org
Subject: Re: Memory leak in DomParser
Is there something preventing you from moving to a more recent release
(like 2.9)? Xerces-J 2.2 is over four years old now. We've fixed
hundreds
of bugs since then. Several of the fixes were for memory leaks.
Michael Glavassevich
XML Parser Development
IBM Toronto Lab
E-mail: mrglavas@ca.ibm.com
E-mail: mrglavas@apache.org
"Avihai Marchiano" <am...@mercado.com> wrote on 01/08/2007 02:54:42
PM:
> Hey,
>
> I am using xerces ver #2.2 and I am using a lot in DomParser.
>
> After some time (around 36 hours) I get OutOfMemory.
>
> I test my application with JProbe memory debugger and I notice that
> a lot of resources (especially String) were not released after
> parsing was finished and garbage collector was run.
>
> The only related topic that I found is:
> http://mail-archives.apache.org/mod_mbox/xerces-j-users/200212.
> mbox/%3c2fb0968997d93980d2275a9d36e6e99f@www3.mail.post.cz%3e
> But there is no answer.
>
> Please, give your advices.
>
> Thank you.
>
>
> My code is:
> DOMParser parser = new DOMParser();
> XMLParserErrorHandler xmlParserErrorHandler = new
> XMLParserErrorHandler();
> parser.setErrorHandler(xmlParserErrorHandler);
>
>
parser.setFeature("http://xml.org/sax/features/validation",
true);
>
> parser.setFeature("http://apache.
> org/xml/features/validation/schema", true);
>
> StringBuffer sb = new StringBuffer(SCHEMA_NS_URI);
> sb.append(" ");
> sb.append(new
File(SCHEMA_XSD_LOCATION).toURI().toString());
>
> parser.setProperty("http://apache.
> org/xml/properties/schema/external-schemaLocation",
> sb.toString());
>
> parser.setFeature("http://xml.org/sax/features/namespaces
",true);
>
>
> m_document = null;
> parser.parse(new InputSource(new
FileInputStream(schemaFile)));
> m_document = parser.getDocument();
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Re: Memory leak in DomParser
Posted by Michael Glavassevich <mr...@ca.ibm.com>.
Is there something preventing you from moving to a more recent release
(like 2.9)? Xerces-J 2.2 is over four years old now. We've fixed hundreds
of bugs since then. Several of the fixes were for memory leaks.
Michael Glavassevich
XML Parser Development
IBM Toronto Lab
E-mail: mrglavas@ca.ibm.com
E-mail: mrglavas@apache.org
"Avihai Marchiano" <am...@mercado.com> wrote on 01/08/2007 02:54:42
PM:
> Hey,
>
> I am using xerces ver #2.2 and I am using a lot in DomParser.
>
> After some time (around 36 hours) I get OutOfMemory.
>
> I test my application with JProbe memory debugger and I notice that
> a lot of resources (especially String) were not released after
> parsing was finished and garbage collector was run.
>
> The only related topic that I found is:
> http://mail-archives.apache.org/mod_mbox/xerces-j-users/200212.
> mbox/%3c2fb0968997d93980d2275a9d36e6e99f@www3.mail.post.cz%3e
> But there is no answer.
>
> Please, give your advices.
>
> Thank you.
>
>
> My code is:
> DOMParser parser = new DOMParser();
> XMLParserErrorHandler xmlParserErrorHandler = new
> XMLParserErrorHandler();
> parser.setErrorHandler(xmlParserErrorHandler);
>
> parser.setFeature("http://xml.org/sax/features/validation",
true);
>
> parser.setFeature("http://apache.
> org/xml/features/validation/schema", true);
>
> StringBuffer sb = new StringBuffer(SCHEMA_NS_URI);
> sb.append(" ");
> sb.append(new File(SCHEMA_XSD_LOCATION).toURI().toString());
>
> parser.setProperty("http://apache.
> org/xml/properties/schema/external-schemaLocation",
> sb.toString());
>
> parser.setFeature("http://xml.org/sax/features/namespaces
",true);
>
>
> m_document = null;
> parser.parse(new InputSource(new
FileInputStream(schemaFile)));
> m_document = parser.getDocument();
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