Our pom.xml is:
<?xml version="1.0" encoding="UTF-8"?>
<project>
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.our</groupId>
<artifactId>our.control</artifactId>
<version>1.20.2.7</version>
</parent>
<artifactId>our.gui-client.webstart</artifactId>
<name>our.gui-client.webstart</name>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<webResources>
<resource>
<directory>webstatic</directory>
<filtering>true</filtering>
<includes>
<include>**/*.html</include>
</includes>
</resource>
<resource>
<directory>webstatic</directory>
<filtering>false</filtering>
<excludes>
<exclude>**/*.html</exclude>
</excludes>
</resource>
</webResources>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>webstart-maven-plugin</artifactId>
<version>1.0-beta-7</version>
<executions>
<execution>
<phase>prepare-package</phase>
<goals>
<goal>jnlp-download-servlet</goal>
</goals>
</execution>
</executions>
<configuration>
<outputDirectoryName>webstart</outputDirectoryName>
<outputJarVersions>false</outputJarVersions>
<jnlpFiles>
<jnlpFile>
<templateFilename>template.vm</templateFilename>
<outputFilename>our.jnlp</outputFilename>
<jarResources>
<jarResource>
<groupId>com.our</groupId>
<artifactId>our.gui-client</artifactId>
<version>${project.version}</version>
<mainClass>com.our.control.guiclient.MainApp</mainClass>
</jarResource>
</jarResources>
</jnlpFile>
</jnlpFiles>
<sign>
<keystore>${project.build.directory}/keyStore</keystore>
<keypass>our</keypass>
<storepass>our</storepass>
<alias>webstart</alias>
<storetype>jks</storetype>
<validity>3650</validity>
<dnameCn>our.com</dnameCn>
<dnameOu>None</dnameOu>
<dnameO>SIA</dnameO>
<dnameL>L</dnameL>
<dnameSt>St</dnameSt>
<dnameC>C</dnameC>
<keystoreConfig>
<delete>true</delete>
<gen>true</gen>
</keystoreConfig>
<verify>true</verify>
</sign>
<updateManifestEntries>
<Trusted-Library>true</Trusted-Library>
<Permissions>all-permissions</Permissions>
<Codebase>*</Codebase>
</updateManifestEntries>
</configuration>
</plugin>
</plugins>
</build>
</project>
and the stacktrace is
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:webstart-maven-plugin:1.0-beta-7:jnlp-download-servlet (default) on project our.control.gui-client.webstart: Execution default of goal org.codehaus.mojo:webstart-maven-plugin:1.0-beta-7:jnlp-download-servlet failed.
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:347)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:827)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:272)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:195)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default of goal org.codehaus.mojo:webstart-maven-plugin:1.0-beta-7:jnlp-download-servlet failed.
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:133)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:827)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:272)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:195)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
Caused by: java.lang.NullPointerException
at org.codehaus.mojo.webstart.util.DefaultArtifactUtil.artifactContainsClass (DefaultArtifactUtil.java:211)
at org.codehaus.mojo.webstart.JnlpDownloadServletMojo.resolveJarResources (JnlpDownloadServletMojo.java:490)
at org.codehaus.mojo.webstart.JnlpDownloadServletMojo.execute (JnlpDownloadServletMojo.java:180)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:126)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:342)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:330)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:827)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:272)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:195)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
[ERROR]
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn <args> -rf :our.control.gui-client.webstart
[DEBUG] Shutting down adapter factory; available factories [file-lock, rwlock-local, semaphore-local, noop]; available name mappers [discriminating, file-gav, file-hgav, file-static, gav, static]
This case appears if the circular dependency is taking place!
this jar was reffering another pom, that was reffering the current pom of the interes. So, technically it works like a circular jar, but unfortunately the error message isn't comprehensive