MathematicaTask.java

[Chris Chiasson]

Hi, I am trying to use the ant task that ships with Mathematica. When
I use the Java Runtime Environment that ships with Mathematica, the
build succeeds. However, this is not something I want to depend upon,
because my real build is meant to do other things in addition to
running Mathematica code:

C:\Documents and Settings\Chris\Desktop>"C:\Program Files\ant\apache-ant-1.6.5\b
in\ant.bat"
Buildfile: build.xml

all:
[echo] 0
[echo] 1
[echo] 4
[echo] 9
[echo] 16
[echo] 25
[echo] 36
[echo] 49
[echo] 64
[echo] 81

BUILD SUCCESSFUL
Total time: 1 second

When I use Sun's standard jre1.5.0_06 (aka Java 5), the build fails
with a lot of errors:

C:\Documents and Settings\Chris\Desktop>"C:\Program Files\ant\apache-ant-1.6.5\b
in\ant.bat"
Unable to locate tools.jar. Expected to find it in C:\Program Files\Java\jre1.5.
0_06\lib\tools.jar
Buildfile: build.xml

all:
[mathematica] Fatal error: cannot find the required native library named JLinkNa
tiveLibrary.

BUILD FAILED
java.lang.UnsatisfiedLinkError: MLOpen

Total time: 1 second

The output doesn't show it, but a dialog box also pops up saying it
can't find jawt.dll.

Here is the source code for the build:

<?xml version="1.0" encoding="UTF-8"?>
<project name="Website Build" default="all">
<property environment="env"/>
<taskdef name="mathematica"
classname="com.wolfram.jlink.util.MathematicaTask"
classpath="C:\Program Files\Wolfram
Research\Mathematica\5.2\AddOns\JLink\JLink.jar"/>
<target name="all">
<mathematica exe="C:\Program Files\Wolfram
Research\Mathematica\5.2\MathKernel">
<![CDATA[
For[i=0,i<10,i++,echo=Ant["project"]@createTask["echo"];echo@setMessage[ToString[i^2]];echo@perform[]]
]]>
</mathematica>
</target>
</project>

If you will, please tell me how I can use the MathematicaTask (look
for MathematicaTask.java inside the Mathematica distribution) with a
standard Java Runtime Environment. (I recommend testing with the
version that doesn't work first. The version that does work appears to
be "sticky" (on Windows anyway) - and no, I don't know how to be more
definite than that.)

--
http://chris.chiasson.name/

[Chris Chiasson]

I must sheepishly admit:
Properly setting JAVA_HOME (I thought I did, but I was wrong) removes
all of the errors except for not finding tools.jar - I still haven't
solved that.

Unable to locate tools.jar. Expected to find it in C:\Program
Files\Java\jre1.5.0_06\lib\tools.jar

--
http://chris.chiasson.name/