What to do, when the dependencies have no version?

[Sebastien Diot]

Hi.

I'm trying to get an OSS project to build with Maven, although the devs don't support Maven atm. So the project source comes with a lib dir with all the dependencies in it, and I just want to copy them to my local repo, so that the pom.xml can find them. The problem is, most dependencies just don't have a version number, like: "noise.jar" ...

How do you solve that? For direct dependencies, I could just give them a dummy version, and have that used in the manifest, but if direct dependency a.jar depends on indirect dependency b.jar, I cannot rename b.jar, as it is referred in a.jar manifest.

If I just try to not include a version, I get this:

$ mvn com.savage7.maven.plugins:maven-external-dependency-plugin:install-external                                                                                                                                 [INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building jMonkeyEngine3 jme3-3.0rc2
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-external-dependency-plugin:0.5:install-external (default-cli) @ jMonkeyEngine3 ---
[INFO] starting to install external dependencies into local repository
[INFO] resolving artifact for installation: android:android:?:jar
[ERROR]
org.apache.maven.artifact.InvalidArtifactRTException: For artifact {android:android:null:jar}: The version cannot be empty.
        at org.apache.maven.artifact.DefaultArtifact.validateIdentity(DefaultArtifact.java:148)
        at org.apache.maven.artifact.DefaultArtifact.<init>(DefaultArtifact.java:123)
        at org.apache.maven.artifact.factory.DefaultArtifactFactory.createArtifact(DefaultArtifactFactory.java:157)
        at org.apache.maven.artifact.factory.DefaultArtifactFactory.createArtifact(DefaultArtifactFactory.java:117)
        at org.apache.maven.artifact.factory.DefaultArtifactFactory.createArtifact(DefaultArtifactFactory.java:111)
        at org.apache.maven.artifact.factory.DefaultArtifactFactory.createArtifactWithClassifier(DefaultArtifactFactory.java:45)
        at com.savage7.maven.plugin.dependency.AbstractExternalDependencyMojo.createArtifact(AbstractExternalDependencyMojo.java:119)
        at com.savage7.maven.plugin.dependency.InstallExternalDependencyMojo.execute(InstallExternalDependencyMojo.java:101)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        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)