"for" task with "list" parameter in ant-contrib does not work

for-loop ant ant-contrib
rabejens picture rabejens · Oct 14, 2013 · Viewed 14.1k times · Source

I have a construct like this in my build script:

<for list="item1,item2,item3,item4" param="theparam">
    <!-- some stuff to do -->
</for>

When executing the script, I get:

Invalid type class net.sf.antcontrib.logic.ForTask used in For task, it does not have a public iterator method

I am using ant-contrib 1.0b3. What am I missing here?

Answer

Mark O&#39;Connor picture Mark O'Connor · Oct 14, 2013

Cannot reproduce your issue. What version of ANT are you using?

Example

$ ant -version
Apache Ant(TM) version 1.9.0 compiled on March 5 2013

$ ant
Buildfile: /home/mark/build.xml

run:
     [echo] param: one
     [echo] param: two
     [echo] param: three
     [echo] param: four

BUILD SUCCESSFUL
Total time: 0 seconds

build.xml

<project name="ant-contrib-tasks" default="run">

    <taskdef resource="net/sf/antcontrib/antlib.xml"/>

    <target name="bootstrap">
        <mkdir dir="${user.home}/.ant/lib"/>
        <get dest="${user.home}/.ant/lib/ant-contrib.jar" src="http://search.maven.org/remotecontent?filepath=ant-contrib/ant-contrib/1.0b3/ant-contrib-1.0b3.jar"/>
    </target>

    <target name="run">
        <for param="theparam" list="one,two,three,four">
            <sequential>
                <echo message="param: @{theparam}"/>
            </sequential>
        </for>
    </target>

</project>

Notes:

  • Special "bootstrap" target installs the ant-contrib dependency.

Related questions

Loop through an array in JavaScript

In Java you can use a for loop to traverse objects in an array as follows: String[] myStringArray = {"Hello", "World"}; for (String s : myStringArray) { // Do something } Can you do the same in JavaScript?

Read More
How do I loop through or enumerate a JavaScript object?

I have a JavaScript object like the following: var p = { "p1": "value1", "p2": "value2", "p3": "value3" }; Now I want to loop through all p elements (p1, p2, p3...) And get their keys and values. How can I do that? I …

Read More
How do I iterate over a range of numbers defined by variables in Bash?

How do I iterate over a range of numbers in Bash when the range is given by a variable? I know I can do this (called "sequence expression" in the Bash documentation): for i in {1..5}; do echo $i; done Which …

Read More