Ant running from maven-antrun-plugin can't find scripting engine on Java 9 -


i have maven project using ant build file:

<?xml version='1.0' encoding='utf-8'?> <project>    <modelversion>4.0.0</modelversion>    <artifactid>my-test-app</artifactid>    <groupid>my-test-group</groupid>    <version>1.0-snapshot</version>     <build>       <plugins>          <plugin>             <groupid>org.apache.maven.plugins</groupid>             <artifactid>maven-antrun-plugin</artifactid>             <version>1.8</version>             <executions>                <execution>                   <id>compile</id>                   <phase>compile</phase>                   <configuration>                      <target>                         <ant antfile="build.xml" inheritrefs="true">                            <target name="all"/>                         </ant>                      </target>                   </configuration>                   <goals>                      <goal>run</goal>                   </goals>                </execution>             </executions>          </plugin>       </plugins>    </build> </project>

the ant build file uses script:

<?xml version='1.0' encoding='utf-8'?> <project name="scriptdef-test-build">    <scriptdef name="test-script" language="javascript">       <![cdata[            var system = java.type('java.lang.system');            system.out.println("working!");         ]]>    </scriptdef>    <target name="all">       <test-script/>    </target> </project>

on java 8 works, on java 9 (9-ea+162) can't find script engine:

org.apache.maven.lifecycle.lifecycleexecutionexception: failed execute goal org.apache.maven.plugins:maven-antrun-plugin:1.8:run (compile) on project my-test-app: ant buildexception has occured: following error occurred while executing line: /home/dan/scriptdef-test/build.xml:10: unable create javax script engine javascript around ant part ...<ant antfile="build.xml" inheritrefs="true">... @ 4:47 in /home/dan/scriptdef-test/target/antrun/build-main.xml ...     caused by: /home/dan/scriptdef-test/build.xml:10: unable create javax script engine javascript     @ org.apache.tools.ant.util.optional.javaxscriptrunner.evaluatescript(javaxscriptrunner.java:84)     @ org.apache.tools.ant.util.optional.javaxscriptrunner.executescript(javaxscriptrunner.java:67)     @ org.apache.tools.ant.taskdefs.optional.script.scriptdef.executescript(scriptdef.java:350)     @ org.apache.tools.ant.taskdefs.optional.script.scriptdefbase.execute(scriptdefbase.java:50)     @ org.apache.tools.ant.unknownelement.execute(unknownelement.java:292)     @ java.base/jdk.internal.reflect.nativemethodaccessorimpl.invoke0(native method)     @ java.base/jdk.internal.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:62)     @ java.base/jdk.internal.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)     @ java.base/java.lang.reflect.method.invoke(method.java:547)     @ org.apache.tools.ant.dispatch.dispatchutils.execute(dispatchutils.java:106)     @ org.apache.tools.ant.task.perform(task.java:348)     @ org.apache.tools.ant.target.execute(target.java:435)     @ org.apache.tools.ant.target.performtasks(target.java:456)     @ org.apache.tools.ant.project.executesortedtargets(project.java:1393)     @ org.apache.tools.ant.helper.singlecheckexecutor.executetargets(singlecheckexecutor.java:38)     @ org.apache.tools.ant.project.executetargets(project.java:1248)     @ org.apache.tools.ant.taskdefs.ant.execute(ant.java:441)     ... 34 more

i have attached debugger , saw scriptenginemanager used javaxscriptrunner doesn't have script engines, because service loader uses doesn't find scriptenginefactory implementations. how can service loader work?

update: i've created issue this: https://issues.apache.org/jira/browse/mantrun-200


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