Java.lang.OutOfMemoryError in ANT

Question

Hi,
I am running an ANT script which creates a large pdf document (amongst other things) but it keeps failing due to an OutOfMemoryError. Is there anyway of increasing the amount of memory the compiler in ANT has? Or is there a better way around this?

Answer 1

I know you can set the amount of memory the javac
compiler uses using the memoryInitialSize attribute of
javac in ANT. I thought about this but the this task
in the ant script does not actually call up javac or
any other compiler :
<target name="pdf" depends="init">
<pdfdoc
url="jdbc:odbc:ObjectToolkit${arg2}"
driverClass="sun.jdbc.odbc.JdbcOdbcDriver"
xsl="docs\pdf\pdf.xsl"
kernel="${version}"
output="bin\ObjectToolkitSummary(${version}).pdf"
type="summary"
/>
<pdfdoc
url="jdbc:odbc:ObjectToolkit${arg2}"
driverClass="sun.jdbc.odbc.JdbcOdbcDriver"
xsl="docs\pdf\pdf.xsl"
kernel="${version}"
output="bin\ObjectToolkit(${version}).pdf"
type="all"
/>
</target>
So im not to sure whats running out of memory. Is
there anyway of increasing the amount of memory the
virtual machine uses?I'm not familiar with the <pdfdoc> task, but I wonder if ANT is running it inside the VM that ANT is running within. Hence, my suggestion to edit the ant script still applies as something you can investigate.
Somewhere in that ant script it does this:
java -classpath ... org.apache.Ant (or whatever the Ant main class is called)
That's where you can add/change the -Xmx command-line option affecting java's memory allocation.