Clover fails with jdk 1.3.1

It seems that clover plugin can't find the XML classes when running jdk 1.3.1.

---- BEGIN SNIPPET —

test:test:
[junit] Running MyTest
[junit] Exception in thread "main" java.lang.NoClassDefFoundError:
org/w3c/dom/Node
[junit] at java.lang.Class.forName0(Native Method)
[junit] at java.lang.Class.forName(Class.java:115)
[junit] at
org.apache.tools.ant.taskdefs.optional.junit.FormatterElement.createFormatter(FormatterElement.java:183)
[junit] at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.createAndStoreFormatter(JUnitTestRunner.java:562)
[junit] at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:507)
[junit] [ERROR] TEST MyTest FAILED

---- END SNIPPET —

If I set JAVA_HOME to JDK 1.4.2 clover works ( The XML classes are included in the JDK 1.4.x)