[Ant] Could not create instr task

[Ryan Lowe]

Hi Vlad,

I'm a EMMA newbie and I'm having a problem with EMMA 2.0.4217 offline processing mode using Ant 1.6.1.  Ant is reporting that it could not create the <instr> task.

I'm running the Ant build.xml script in Eclipse 3.0.0, which comes with Ant 1.6.1.  Eclipse is using JSDK 1.4.2_04 to run the Ant script.

EMMA is "installed" in:
C:\Development\eclipse\workspace\homegrown-build\emma-2.0.4217

I also copied emma.jar to:
[SDK directory that Eclipse uses for Ant]\lib\ext

There is nothing else in the "ext" directory -- i had to create it.

----

I made the Ant script look like your example in the User Guide.  Here are the relevant parts:

[...other stuff...]

    <!-- emma -->
    <property name="emma.dir" location="${tools.dir}/emma-2.0.4217/lib"/>
    <path id="emma.lib">
        <pathelement location="${emma.dir}/emma.jar"/>
        <pathelement location="${emma.dir}/emma_ant.jar"/>
    </path>

[...other stuff...]

    <taskdef resource="emma_ant.properties" classpathref="emma.lib"/>
   
    <target name="emma-instrument" depends="compile-src-debug">
        <mkdir dir="${src.emma_instrumented_classes.dir}"/>
        <mkdir dir="${tests.emma.dir}"/>
        <instr instrpath="${src.classes_debug.dir}"
                destdir="${src.emma_instrumented_classes.dir}"
                metadatafile="${tests.emma.dir}/metadata.emma"
                merge="true"/>
    </target>

[...other stuff...]

----

${tools.dir} is just:
C:\Development\eclipse\workspace\homegrown-build

----

If I run the build script I get the typical Ant error for missing tasks:

BUILD FAILED: C:\Development\eclipse\workspace\org.audioman\build.xml:29: Following error occured while executing this line
C:\Development\eclipse\workspace\org.audioman\basicbuild.xml:128: Could not create task or type of type: instr.

Ant could not find the task or a class this task relies upon.

This is common and has a number of causes...(etc...)

----

I have also tried adding emma.jar to:

[Eclipse's Ant plugin directory]\lib

and this problem still persists.

Any idea what I'm doing wrong?  Thanks very much in advance!

Ryan Lowe
ryan@audioman.org

[Ryan Lowe]

Sorry, I made a typical noob mistake.  I didn't realise that the <instr> tag MUST be surrounded by an <emma> tag.  I changed my buildfile to:

        <emma enabled="true" >
            <instr instrpath="${src.classes_debug.dir}"
                    destdir="${src.emma_instrumented_classes.dir}"
                    metadatafile="${tests.emma.dir}/metadata.emma"
                    merge="true"/>
        </emma>

...and now it works.