[IVY-1225] Ivy won't import atomikos-util claiming cycling dependency -parent inheritance problem?

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.2.0
• Component/s: Maven Compatibility
• Assignee: Maarten Coene
• Reporter: Steve Loughran
• Created: 08/Sep/10 14:35
• Updated: 16/Sep/10 22:16
• Resolved: 16/Sep/10 22:16

Description

I have a bit of ivy.xml which goes

 
    <dependency org="com.atomikos"
      name="atomikos-util"
      rev="3.6.4"
      conf="redist->default"/>

This is being rejected due to cyclic dependencies:

 

impossible to resolve dependencies:
	java.lang.IllegalArgumentException: a module is not authorized to depend on itself: com.atomikos#atomikos-util;3.6.4
	at org.apache.ivy.core.resolve.IvyNodeCallers.addCaller(IvyNodeCallers.java:169)
	at org.apache.ivy.core.resolve.IvyNode.addCaller(IvyNode.java:1026)
	at org.apache.ivy.core.resolve.IvyNode.getDependencies(IvyNode.java:352)
	at org.apache.ivy.core.resolve.VisitNode.getDependencies(VisitNode.java:301)
	at org.apache.ivy.core.resolve.ResolveEngine.doFetchDependencies(ResolveEngine.java:750)
	at org.apache.ivy.core.resolve.ResolveEngine.fetchDependencies(ResolveEngine.java:679)
	at org.apache.ivy.core.resolve.ResolveEngine.doFetchDependencies(ResolveEngine.java:744)
	at org.apache.ivy.core.resolve.ResolveEngine.fetchDependencies(ResolveEngine.java:679)
	at org.apache.ivy.core.resolve.ResolveEngine.doFetchDependencies(ResolveEngine.java:744)
	at org.apache.ivy.core.resolve.ResolveEngine.fetchDependencies(ResolveEngine.java:679)
	at org.apache.ivy.core.resolve.ResolveEngine.doFetchDependencies(ResolveEngine.java:757)
	at org.apache.ivy.core.resolve.ResolveEngine.fetchDependencies(ResolveEngine.java:679)
	at org.apache.ivy.core.resolve.ResolveEngine.doFetchDependencies(ResolveEngine.java:744)
	at org.apache.ivy.core.resolve.ResolveEngine.fetchDependencies(ResolveEngine.java:679)
	at org.apache.ivy.core.resolve.ResolveEngine.doFetchDependencies(ResolveEngine.java:744)
	at org.apache.ivy.core.resolve.ResolveEngine.fetchDependencies(ResolveEngine.java:679)
	at org.apache.ivy.core.resolve.ResolveEngine.getDependencies(ResolveEngine.java:551)
	at org.apache.ivy.core.resolve.ResolveEngine.resolve(ResolveEngine.java:235)
	at org.apache.ivy.core.resolve.ResolveEngine.resolve(ResolveEngine.java:193)
	at org.apache.ivy.Ivy.resolve(Ivy.java:502)
	at org.apache.ivy.ant.IvyResolve.doExecute(IvyResolve.java:244)
	at org.apache.ivy.ant.IvyTask.execute(IvyTask.java:277)
	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
	at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	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:390)
	at org.apache.tools.ant.Target.performTasks(Target.java:411)
	at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1397)
	at org.apache.tools.ant.Project.executeTarget(Project.java:1366)
	at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
	at org.apache.tools.ant.Project.executeTargets(Project.java:1249)
	at org.apache.tools.ant.Main.runBuild(Main.java:809)
	at org.apache.tools.ant.Main.startAnt(Main.java:218)
	at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
	at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)

Only here is the problem: atomikos doesn't depend on itself. It has a parent group which then refers down -that could be the dependency.

<?xml version="1.0" encoding="UTF-8"?> 
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> 
	<modelVersion>4.0.0</modelVersion> 
	<parent> 
		<groupId>com.atomikos</groupId> 
		    <artifactId>transactions-essentials-all</artifactId> 
		<version>3.6.4</version> 
	</parent> 
	<groupId>com.atomikos</groupId> 
	<artifactId>atomikos-util</artifactId> 
	<version>3.6.4</version> 
	<name>Atomikos Util</name> 
 
	<dependencies> 
		<groupId>javax.servlet</groupId> 
		<artifactId>servlet-api</artifactId> 
		<version>2.3</version> 
		<scope>provided</scope> 
	</dependencies> 
</project> 

Does having a parent template which declares a dependency create a cycle? If so, how to workaround this?