I try to upload an ear created by maven to an application server using scp.
When I tried to run
mvn wagon:upload-single
But I get the following error:
[ERROR] Failed to execute goal org.codehaus.mojo:wagon-maven-plugin:1.0-beta-3:upload-single (default-cli) on project de.volkswagen.dps.ear: Unable to create a Wagon instance for null: url can not be null -> [Help 1] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:wagon-maven-plugin:1.0-beta-3:upload-single (default-cli) on project de.volkswagen.dps.ear: Unable to create a Wagon instance for null at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:585) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:324) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:247) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:104) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:427) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:157) at org.apache.maven.cli.MavenCli.main(MavenCli.java:121) 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:597) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352) Caused by: org.apache.maven.plugin.MojoExecutionException: Unable to create a Wagon instance for null at org.codehaus.mojo.wagon.AbstractWagonMojo.createWagon(AbstractWagonMojo.java:83) at org.codehaus.mojo.wagon.AbstractSingleWagonMojo.execute(AbstractSingleWagonMojo.java:62) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:105) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:577) ... 14 more Caused by: java.lang.NullPointerException: url can not be null at org.apache.maven.wagon.repository.Repository.(Repository.java:88) at org.codehaus.mojo.wagon.shared.WagonUtils.createWagon(WagonUtils.java:51) at org.codehaus.mojo.wagon.AbstractWagonMojo.createWagon(AbstractWagonMojo.java:79) ... 17 more
I tried to add this to the pom, but it doesn't seem to have any effect:
I added the following to the pom.xml:
...
<extensions>
<extension>
<groupId>org.apache.maven.wagon</groupId>
<artifactId>wagon-ssh</artifactId>
<version>1.0-beta-6</version>
</extension>
</extensions>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>wagon-maven-plugin</artifactId>
<version>1.0-beta-3</version>
<executions>
<execution>
<id>upload-ear</id>
<phase>deploy</phase>
<goals>
<goal>upload</goal>
</goals>
<configuration>
<fromFile>${project.build.directory}/${project.build.finalName}.ear</fromFile>
<url>scp://servername/</url>
<toDir>.</toDir>
</configuration>
</execution>
</executions>
</plugin>
....
Can anybody explain how I can make this work?
Your current configuration follows the example given in the Usage page and is correct. However, in this example the configuration
element is declared inside an execution
and thus only applies to this particular execution
.
So when you call mvn wagon:upload-single
on the command line, the configuration
isn't "used" and there is indeed no url
parameter configured.
If you want to call the plugin from the command line, either pass the parameters on the command line using -Durl=foo
and so on or add a "global" configuration
element:
<build>
<extensions>
<extension>
<groupId>org.apache.maven.wagon</groupId>
<artifactId>wagon-ssh</artifactId>
<version>1.0-beta-6</version>
</extension>
</extensions>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>wagon-maven-plugin</artifactId>
<version>1.0-beta-3</version>
<configuration>
<fromFile>${project.build.directory}/${project.build.finalName}.ear</fromFile>
<url>scp://servername/</url>
<toDir>.</toDir>
</configuration>
...
</plugin>
...
</plugins>
...
</build>
来源:https://stackoverflow.com/questions/3300018/uploading-a-file-via-scp-with-maven-fails