include::sample[dir="snippets/ant/useAntType/groovy",files="build.gradle"]
====

[[sec:using_custom_ant_tasks]]
=== Using custom Ant tasks

To make custom tasks available in your build, use the `taskdef` (usually easier) or `typedef` Ant task, just as you would in a `build.xml` file.
You can then refer to the custom Ant task as you would a built-in Ant task:

====

    }

    def "reports failure if build fails in build phase"() {
        setupProject()
        file("a/build.gradle") << """
            tasks.register("taskE") {
                doLast {
                    throw new RuntimeException("taskD failed")
                }
            }
        """

        when:
        def events = ProgressEvents.create()
        withConnection {

import org.apache.commons.io.FileUtils
import org.apache.commons.lang.StringUtils
import org.apache.tools.ant.Project
import org.apache.tools.ant.taskdefs.Expand
import org.apache.tools.ant.taskdefs.Tar
import org.apache.tools.ant.taskdefs.Untar
import org.apache.tools.ant.taskdefs.Zip
import org.apache.tools.ant.types.ArchiveFileSet
import org.apache.tools.ant.types.EnumeratedAttribute
import org.apache.tools.ant.types.ZipFileSet

	priq := &s.priq
	q := s.q
	queued := s.queued
	queued.clear()
	hasPhi := s.hasPhi
	hasPhi.clear()
	hasDef := s.hasDef
	hasDef.clear()

	// Add defining blocks to priority queue.
	for _, b := range defs {
		priq.a = append(priq.a, b)
		hasDef.add(b.ID)
		if debugPhi {
			fmt.Printf("def of var%d in %s\n", n, b)
		}
	}
	heap.Init(priq)

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.api.java.archives.internal

import org.apache.tools.ant.taskdefs.Manifest
import org.apache.tools.ant.taskdefs.Manifest.Attribute
import org.gradle.api.Action
import org.gradle.api.internal.file.FileResolver
import org.gradle.api.internal.provider.DefaultProperty

                                      'net/rubygrapefruit/platform/FileInfo',
                                      'org/codehaus/groovy/ant/Groovyc',
                                      'org/apache/tools/ant/taskdefs/Ant',
                                      'org/slf4j/Logger',
                                      'org/apache/commons/logging/Log',
                                      'org/apache/log4j/Logger',

import com.google.common.collect.Lists;
import groovy.lang.Closure;
import groovy.lang.DelegatesTo;
import org.apache.commons.io.FileUtils;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.taskdefs.Zip;
import org.codehaus.groovy.runtime.ResourceGroovyMethods;
import org.gradle.api.UncheckedIOException;
import org.gradle.internal.hash.HashCode;
import org.gradle.internal.hash.Hashing;