If I try to compile jBPM exmaples in the directory jbpm-jpdl/examples the build process fails with message
org.apache.maven.reactor.MavenExecutionException: Cannot find parent: org.jbpm.jbpm3:jbpm for project: org.jbpm.jbpm3:jbpm-examples:jar:null for project org.jbpm.jbpm3:jbpm-examples:jar:null
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:378)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:292)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:287)
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.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.project.ProjectBuildingException: Cannot find parent: org.jbpm.jbpm3:jbpm for project: org.jbpm.jbpm3:jbpm-examples:jar:null for project org.jbpm.jbpm3:jbpm-examples:jar:null
at org.apache.maven.project.DefaultMavenProjectBuilder.assembleLineage(DefaultMavenProjectBuilder.java:1370)
at org.apache.maven.project.DefaultMavenProjectBuilder.buildInternal(DefaultMavenProjectBuilder.java:821)
at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFileInternal(DefaultMavenProjectBuilder.java:506)
at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:198)
at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:583)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:461)
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:365)

The pom.xml contains the defintion of parent project
<!-- Parent -->
<parent>
<groupId>org.jbpm.jbpm3</groupId>
<artifactId>jbpm</artifactId>
<version>3.2.5.SP1</version>
<relativePath>../../pom.xml</relativePath>
</parent>

But the file does not exist