[GROOVY-8792] groovy-json not working from <groovy> Ant task

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.5.0
• Component/s: Ant integration, JSON
• Labels: ant json
• Assignee: Unassigned
• Reporter: Gregory Moltchadski
• Created: 14/Sep/18 10:34
• Updated: 15/Apr/23 23:45

Description

groovy-json 2.5.X uses java.util.ServiceLoader to load FastStringService and therefore doesn't work in a multi-classloader environment

build.xml

<project name="test" default="build" basedir=".">

  <taskdef name="groovy" 
           classname="org.codehaus.groovy.ant.Groovy" 
           classpath="groovy-2.5.2.jar:groovy-ant-2.5.2.jar:groovy-json-2.5.2.jar"/>

  <target name="build">
    <groovy>
    <![CDATA[
      import groovy.json.*
      def json = new JsonSlurper().parseText('{"person":{"name":"Guillaume","age":33,"pets":["dog","cat"]}}')
      println new JsonBuilder(json).toPrettyString()
    ]]>
    </groovy>
  </target>
  
</project>

Build output:

BUILD FAILED
C:\test2\build.xml:8: java.lang.RuntimeException: Unable to load FastStringService
        at org.apache.groovy.json.internal.FastStringUtils.getService(FastStringUtils.java:57)
        at org.apache.groovy.json.internal.FastStringUtils.toCharArray(FastStringUtils.java:67)
        at org.apache.groovy.json.internal.BaseJsonParser.parse(BaseJsonParser.java:112)
        at groovy.json.JsonSlurper.parseText(JsonSlurper.java:205)
        at groovy.json.JsonSlurper$parseText.call(Unknown Source)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:128)
        at embedded_script_in_C__test2_build_dot_xml.run(embedded_script_in_C__test2_build_dot_xml:2)
        at org.codehaus.groovy.ant.Groovy.parseAndRunScript(Groovy.java:517)
        at org.codehaus.groovy.ant.Groovy.execGroovy(Groovy.java:464)
        at org.codehaus.groovy.ant.Groovy.execute(Groovy.java:322)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
        at org.apache.tools.ant.Task.perform(Task.java:348)
        at org.apache.tools.ant.Target.execute(Target.java:435)
        at org.apache.tools.ant.Target.performTasks(Target.java:456)
        at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1393)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1364)
        at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1248)
        at org.apache.tools.ant.Main.runBuild(Main.java:851)
        at org.apache.tools.ant.Main.startAnt(Main.java:235)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)

Issue Links

• duplicates: GROOVY-8791 groovy-json not working in the <groovy> Ant task