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From "Alex Miller (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AVRO-868) NoClassDefFoundError when running avro-maven-plugin:protocol goal
Date Tue, 16 Aug 2011 13:07:27 GMT

    [ https://issues.apache.org/jira/browse/AVRO-868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13085680#comment-13085680
] 

Alex Miller commented on AVRO-868:
----------------------------------

Thanks everyone!  I wiped my local repo and indeed things are looking better now.  I must
have had some bad stuff in there.  Resolving...

> NoClassDefFoundError when running avro-maven-plugin:protocol goal
> -----------------------------------------------------------------
>
>                 Key: AVRO-868
>                 URL: https://issues.apache.org/jira/browse/AVRO-868
>             Project: Avro
>          Issue Type: Bug
>          Components: java
>    Affects Versions: 1.5.2
>         Environment: Apache Maven 3.0.3, Java 1.6.0_26, Avro 1.5.2-rc1  (experienced
on multiple OSes so don't think that's important)
>            Reporter: Alex Miller
>            Priority: Blocker
>             Fix For: 1.6.0
>
>
> I have a project that generates Java classes from a avpr using the avro-maven-plugin's
protocol goal.  When I switch from Avro 1.5.1 (everything works perfectly) to 1.5.2-rc1 (also
happened with rc0), I get the following error:
> {noformat}
> Caused by: org.apache.maven.plugin.PluginContainerException: A
> required class was missing while executing
> org.apache.avro:avro-maven-plugin:1.5.2:protocol:
> org/apache/maven/shared/model/fileset/util/FileSetManager
> -----------------------------------------------------
> realm =    plugin>org.apache.avro:avro-maven-plugin:1.5.2
> strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
> urls[0] = file:/Users/alex/.m2/repository/org/apache/avro/avro-maven-plugin/1.5.2/avro-maven-plugin-1.5.2.jar
> urls[1] = file:/Users/alex/.m2/repository/org/codehaus/plexus/plexus-utils/1.1/plexus-utils-1.1.jar
> Number of foreign imports: 1
> import: Entry[import  from realm ClassRealm[maven.api, parent: null]]
> -----------------------------------------------------
>         at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:125)
>         ... 20 more
> Caused by: java.lang.NoClassDefFoundError:
> org/apache/maven/shared/model/fileset/util/FileSetManager
>         at org.apache.avro.mojo.AbstractAvroMojo.getIncludedFiles(AbstractAvroMojo.java:113)
>         at org.apache.avro.mojo.AbstractAvroMojo.execute(AbstractAvroMojo.java:97)
>         at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
>         ... 20 more
> Caused by: java.lang.ClassNotFoundException:
> org.apache.maven.shared.model.fileset.util.FileSetManager
>         at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
>         at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244)
>         at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230)
>         ... 23 more
> {noformat}
> It appears to me that there is a missing dependency on the
> FileSetManager class (which is in the
> org.apache.maven.shared:file-management artifact).
> My plugin execution is pretty straightforward, just generating sources
> from the avpr:
> {noformat}
>       <plugin>
>         <groupId>org.apache.avro</groupId>
>         <artifactId>avro-maven-plugin</artifactId>
>         <version>${avro-version}</version>
>         <executions>
>           <execution>
>             <phase>generate-sources</phase>
>             <goals>
>               <goal>protocol</goal>
>             </goals>
>           </execution>
>         </executions>
>       </plugin>
> {noformat}
> You can find the project in question in the sherpa-protocol sub-module at https://github.com/revelytix/spark.
 To reproduce:
> # git clone git://github.com/revelytix/spark.git
> # cd spark/sherpa-protocol
> # In pom.xml, change: 
> #* <avro-version>1.5.1</avro-version> to 1.5.2
> #* Add repositories section: 
>  {noformat}
>       <repositories>
>         <repository>
>           <releases>
>             <enabled>true</enabled>
>           </releases>
>           <snapshots>
>             <enabled>false</enabled>
>           </snapshots>
>           <id>avro-rc</id>
>           <name>Avro RC</name>
>           <url>https://repository.apache.org/content/repositories/orgapacheavro-010</url>
>         </repository>
>       </repositories>
> {noformat}
> # mvn -X -e compile

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