hi,
On many of my projects, we need to compile against the 1.4 JDK.
Depending on what any individual developer might have installed, we run
into issues with JDK versions ranging from 1.4.x, 1.5.x and 1.6.
Does anyone know if there is a task in ant which can be used to verify
the version of the JDK and possibly fail the build if the version does
not match what the project needs? (For eg: The limitation could be that
the app server being used does not support more than JDK 1.4)
To get around this currently, I have the following lines at the top of
the build file:
<!-- allows non-standard tasks <foreach> and <if> -->
<taskdef resource="net/sf/antcontrib/antlib.xml"
classpath="lib/compile/ant-contrib.jar" />
<!-- verify that the current java version is correct -->
<if>
<not>
<equals arg1="${ant.java.version}" arg2="1.4" />
</not>
<then>
<fail message="Not running ant with JDK 1.4 - this will
result in differing class versions" />
</then>
</if>
But, as you can see, this creates a dependency on the ant-contrib jar.
What I would like to achieve is the same - but without having to include
the ant-contrib jar.
thanks,
Vijay
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