Java – Specifying jvm arguments in ant tasks

antjavajvm-arguments

I am specifying jvm arguments since i was getting out of heap space exception so just to avoid that i was specifying the below parameters in my ant target that is as shown below..

  <junit
   printsummary="true"
   fork="yes"
   haltonfailure="false"
   failureproperty="junitsFailed"
   errorProperty="junitsFailed"
  >
   <jvmarg value=" -Xmx1024m -Duser.timezone=GMT0"/>
  </junit>

but below i am getting the below exception ..

that is the invalid parameters are specified

Best Solution

Use multiple <jvmarg> elements:

<junit printsummary="true" fork="yes" haltonfailure="false" failureproperty="junitsFailed" errorProperty="junitsFailed">
    <jvmarg value="-Xmx1024m"/>
    <jvmarg value="-Duser.timezone=GMT0"/>
</junit>

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Java – Configuring ant to run unit tests. Where should libraries be? How should classpath be configured? avoiding ZipException

Found my problem. I had included my classes directory in my path using a fileset as opposed to a pathelement this was causing .class files to be opened as ZipFiles which of course threw an exception.

Java – How to set JVM parameters for Junit Unit Tests

In Maven you can configure the surefire plugin

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.9</version>
    <configuration>
        <argLine>-Xmx256M</argLine>
    </configuration>
</plugin>

If you use Maven for builds then this configuration will be carried in the source tree and applied when tests are carried out. See the Maven Surefire Plugin documentation.

Best Solution

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Java – Configuring ant to run unit tests. Where should libraries be? How should classpath be configured? avoiding ZipException

Java – How to set JVM parameters for Junit Unit Tests

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