OutOfMemoryException Processing Velocity Template
I am getting an OutOfMemoryException:
org.apache.velocity.exception.MethodInvocationException: Invocation of method
'get' in class org.apache.velocity.tools.struts.TilesTool threw exception
class java.lang.OutOfMemoryError : null
when I am creating a large velocity file. The vm file itself is fairly small,
but this piece of velocity is causing the exception:
#foreach($row in $List)
tr
td height=20 class=tbltxt$!row.item1/td
td class=tbltxt$!row.item2/td
td class=tbltxt$!row.item3/td
td class=tbltxt$!row.item4/td
td class=tbltxt$!number.format('currency', $!row.item5)/td
/tr
#end
List is a list of relatively small objects (5-6 Strings, a couple of
BigDecimals), but the List itself contains approximately 66,000 entries.
Unfortunately, unless I set the tomcat JVM to use a heap size of at least 256M,
this velocity template throws an OutOfMemoryException when it is being
processed.
Any suggestions?
Thanks.
-L
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Ifnotnull
Hey all,
I had previously upgraded to 1.5-dev and things are working well with the one
email templating thing I had found help here on.
Since the upgrade, however, I seem to be getting some RHS of #set statement is
null. things i don't remember getting before.
I explored a bit and found:
http://wiki.apache.org/jakarta-velocity/CheckingForNull
I added these to my velocity property file:
userdirective = org.apache.velocity.tools.generic.directive.Ifnull
userdirective = org.apache.velocity.tools.generic.directive.Ifnotnull
And changed my template code as follows:
#ifnotnull( $form )
#set ($attr = $form.getBean())
#end
And get this error:
Encountered #end\r\n at line 3, column 1. Was expecting one of: ( ... ...
... ... ... \\ ... ... ... *# ... *# ... ... ... ... ... ... ...
... ... ... ... { ... } ...
org.apache.velocity.exception.ParseErrorException: Encountered #end\r\n at
line 3, column 1.
Was expecting one of:
( ...
...
...
...
...
\\ ...
...
...
*# ...
*# ...
...
...
...
...
...
...
...
...
...
...
{ ...
} ...
at org.apache.velocity.Template.process(Template.java:141)
at
org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:428)
at
org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:346)
at
org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:835)
at
org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:817)
at
org.apache.velocity.app.VelocityEngine.getTemplate(VelocityEngine.java:504)
at
org.apache.velocity.tools.view.servlet.VelocityViewServlet.getTemplate(Unknown
Source)
at
org.apache.velocity.tools.view.servlet.VelocityViewServlet.handleRequest(Unknown
Source)
at
org.apache.velocity.tools.view.servlet.VelocityViewServlet.doRequest(Unknown
Source)
at
org.apache.velocity.tools.view.servlet.VelocityViewServlet.doPost(Unknown
Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)
at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499)
at org.apache.velocity.tools.view.ImportSupport.acquireString(Unknown
Source)
at org.apache.velocity.tools.struts.TilesTool.doInsert(Unknown Source)
at org.apache.velocity.tools.struts.TilesTool.doInsert(Unknown Source)
at org.apache.velocity.tools.struts.TilesTool.processUrl(Unknown Source)
at
org.apache.velocity.tools.struts.TilesTool.processAsDefinitionOrURL(Unknown
Source)
at
org.apache.velocity.tools.struts.TilesTool.processObjectValue(Unknown Source)
at org.apache.velocity.tools.struts.TilesTool.get(Unknown Source)
at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.apache.velocity.runtime.parser.node.GetExecutor.execute(GetExecutor.java:65)
at
org.apache.velocity.util.introspection.UberspectImpl$VelGetterImpl.invoke(UberspectImpl.java:300)
at
org.apache.velocity.runtime.parser.node.ASTIdentifier.execute(ASTIdentifier.java:157)
at
org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:175)
at
org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:224)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:231)
at org.apache.velocity.Template.merge(Template.java:256)
at
org.apache.velocity.tools.view.servlet.VelocityViewServlet.mergeTemplate(Unknown
Source)
at
org.apache.velocity.tools.view.servlet.VelocityViewServlet.doRequest(Unknown
Source)
at
org.apache.velocity.tools.view.servlet.VelocityViewServlet.doPost(Unknown
Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
Re: OutOfMemoryException Processing Velocity Template
Hi,
This maybe because you haven't turned on template caching. I had
similar problem before, and even if I only used evaluate(...) method
and load the template using my own java program, it happened when the
for loop is lot of iterations.
The bottom line for my problem is I need to turn on template caching,
so, velocity will not try to cache the objects it parsed during each
time of the iteration.
I did:
ri.setProperty(RuntimeConstants.FILE_RESOURCE_LOADER_CACHE, true);
where ri is a runtime instance.
Will this fix your issue?
Cheers,
Jian
On 5/5/05, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
I am getting an OutOfMemoryException:
org.apache.velocity.exception.MethodInvocationException: Invocation of method
'get' in class org.apache.velocity.tools.struts.TilesTool threw exception
class java.lang.OutOfMemoryError : null
when I am creating a large velocity file. The vm file itself is fairly
small, but this piece of velocity is causing the exception:
#foreach($row in $List)
tr
td height=20 class=tbltxt$!row.item1/td
td class=tbltxt$!row.item2/td
td class=tbltxt$!row.item3/td
td class=tbltxt$!row.item4/td
td class=tbltxt$!number.format('currency', $!row.item5)/td
/tr
#end
List is a list of relatively small objects (5-6 Strings, a couple of
BigDecimals), but the List itself contains approximately 66,000 entries.
Unfortunately, unless I set the tomcat JVM to use a heap size of at least
256M, this velocity template throws an OutOfMemoryException when it is being
processed.
Any suggestions?
Thanks.
-L
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
