max heap memory size is a jvm level setting that the xslt task has no control
over. The only way to specify a different heap memory size for the xslt task is
to run it in a different jvm, Running the xslt task by setting the fork
attribute to true as you showed in the second approach is the way to go. What
is wrong with this approach?
________________________________
From: Mark Giffin <m1...@earthlink.net>
To: Ant Users List <user@ant.apache.org>
Sent: Sunday, August 5, 2012 5:53 PM
Subject: Increase Java heap within xslt task?
How can I increase the memory for the xslt task from within Ant 1.8.4, not with
an environment variable? I am using Saxon by specifying the Saxon jar classpath
in this target:
<target name="commands">
<xslt in="command-spreadsheet.xml" out="out.xml"
style="intermed.xsl" force="true">
<classpath location="${saxon}" />
</xslt>
</target>
This transform job crashes with "java.lang.OutOfMemoryError: Java heap space"
unless I set ANT_OPTS=-Xmx256m. But I don't want to have to depend on an env
variable. Is there a way to increase JVM heap space within the xslt task? I can
run this same transform successfully with the java task like this, using the
maxmemory attribute to increase the heap space:
<target name="old">
<java jar="${saxon}" fork="true" failonerror="true" maxmemory="256m">
<!-- Source file -->
<arg value="-s:command-spreadsheet.xml"/>
<!-- XSLT stylesheet -->
<arg value="-xsl:intermed.xsl"/>
</java>
</target>
There is no maxmemory attribute for the xslt task. I would rather use the xslt
task if I can.
Thanks,
Mark
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