[GROOVY-3396] groovy ant task fails at instanciating class that has no standard constructor

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 1.6
• Component/s: Ant integration
• Environment: Windows XP; Groovy Version: 1.6.0 JVM: 1.5.0_17; Apache Ant version 1.7.0 compiled on December 13 2006
• Assignee: Unassigned
• Reporter: Alexander Röhnsch
• Created: 05/Mar/09 07:25
• Updated: 23/Mar/10 06:49
• Resolved: 23/Mar/10 06:49

Description

Given a class that contains a main method and a constructor. The constructor is non-standard, i.e. requires one or more arguments. The main method creates an instance of the class using the constructor with arguments.

Using Groovy to execute that class works fine.
Using the groovy ant task, however, ends in an Exception.
Groovy script and ant script for triggering the error are attached.
When specifying a default constructor as well, the example works again in ant.

Output:

Apache Ant version 1.7.0 compiled on December 13 2006
Buildfile: build.xml
Detected Java version: 1.5 in: C:\Programme\Java\jdk1.5.0_17\jre
Detected OS: Windows XP
parsing buildfile C:\Dokumente und Einstellungen\roeh_al\Desktop\failgroovy\build.xml with URI = file:/C:/Dokumente%20und%20Einstellungen/roeh_al/Desktop/failgroovy/build.xml
Project base dir set to: C:\Dokumente und Einstellungen\roeh_al\Desktop\failgroovy
[antlib:org.apache.tools.ant] Could not load definitions from resource org/apache/tools/ant/antlib.xml. It could not be found.
Build sequence for target(s) `failgroovy' is [failgroovy]
Complete build sequence is [failgroovy, ]

failgroovy:
[groovy] Script: class test {
[groovy]
[groovy] public test( text )

{ [groovy] println text [groovy] }

[groovy]
[groovy] static main(args)

{ [groovy] def t = new test("hello") [groovy] }

[groovy] }
[groovy]

BUILD FAILED
C:\Dokumente und Einstellungen\roeh_al\Desktop\failgroovy\build.xml:7: groovy.lang.GroovyRuntimeException: Failed to create Script instance for class: class test. Reason: java.lang.InstantiationException: test
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:115)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
at org.apache.tools.ant.Main.runBuild(Main.java:698)
at org.apache.tools.ant.Main.startAnt(Main.java:199)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
Caused by: groovy.lang.GroovyRuntimeException: Failed to create Script instance for class: class test. Reason: java.lang.InstantiationException: test
at org.codehaus.groovy.runtime.InvokerHelper.createScript(InvokerHelper.java:412)
at groovy.lang.GroovyShell.parse(GroovyShell.java:602)
at groovy.lang.GroovyShell.parse(GroovyShell.java:582)
at groovy.lang.GroovyShell.parse(GroovyShell.java:629)
at org.codehaus.groovy.ant.Groovy.parseAndRunScript(Groovy.java:413)
at org.codehaus.groovy.ant.Groovy.execGroovy(Groovy.java:404)
at org.codehaus.groovy.ant.Groovy.execute(Groovy.java:279)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
... 11 more
Caused by: java.lang.InstantiationException: test
at java.lang.Class.newInstance0(Class.java:335)
at java.lang.Class.newInstance(Class.java:303)
at org.codehaus.groovy.runtime.InvokerHelper.createScript(InvokerHelper.java:395)
... 23 more
— Nested Exception —
groovy.lang.GroovyRuntimeException: Failed to create Script instance for class:
class test. Reason: java.lang.InstantiationException: test
at org.codehaus.groovy.runtime.InvokerHelper.createScript(InvokerHelper.java:412)
at groovy.lang.GroovyShell.parse(GroovyShell.java:602)
at groovy.lang.GroovyShell.parse(GroovyShell.java:582)
at groovy.lang.GroovyShell.parse(GroovyShell.java:629)
at org.codehaus.groovy.ant.Groovy.parseAndRunScript(Groovy.java:413)
at org.codehaus.groovy.ant.Groovy.execGroovy(Groovy.java:404)
at org.codehaus.groovy.ant.Groovy.execute(Groovy.java:279)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
at org.apache.tools.ant.Main.runBuild(Main.java:698)
at org.apache.tools.ant.Main.startAnt(Main.java:199)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
Caused by: java.lang.InstantiationException: test
at java.lang.Class.newInstance0(Class.java:335)
at java.lang.Class.newInstance(Class.java:303)
at org.codehaus.groovy.runtime.InvokerHelper.createScript(InvokerHelper.java:395)
... 23 more

Total time: 2 seconds