'Maven: NoClassDefFoundError of system scoped dependency

I am developing an Android project with Maven. I have a third-party jar file that I have included in a lib folder on my project root directory:

 <dependency>
     <groupId>com.parse</groupId>
     <artifactId>parse</artifactId>
     <version>1.9.2</version>
     <scope>system</scope>
     <systemPath>${project.basedir}\lib\Parse-1.9.2.jar</systemPath>
 </dependency>

But when I install the apk in my phone, I get NoClassDefFoundError. Obviously, that class exists inside the jar.

How can I do?

Thanks.

javaandroidmaven


Solution 1:[1]

I would suggest using one of your directories as a repository, add your jar in it, and load it the proper Maven way.

You can do this adding this to your pom.xml and putting your jar in /lib:

<repositories>
   <repository>
       <id>mylibid</id>
       <url>file://${project.basedir}/lib</url>
   </repository>
</repositories>

...

<dependencies>
  ...
  <dependency>
      <groupId>com.parse</groupId>
      <artifactId>parse</artifactId>
      <version>1.9.2</version>
  </dependency>
  ...
</dependencies>

Solution 2:[2]

Add my two cents here, you can install the third-party into your local repository firstly and try add dependency directly.

Take your scenario as an example. Change to the folder where contains the third jar and type:

mvn install:install-file -DgroupId=com.parse -DartifactId=parse -Dversion=1.9.2 -Dpackaging=jar -Dfile=Parse-1.9.2.jar

Modify your pom.xml to add the dependency.

<dependencies>
  ...
  <dependency>
      <groupId>com.parse</groupId>
      <artifactId>parse</artifactId>
      <version>1.9.2</version>
  </dependency>
  ...
</dependencies>

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Solomon Ucko
Solution 2 Eugene

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