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Posts Tagged ‘No source code is available for type’

PostHeaderIcon No source code is available for type … ; did you forget to inherit a required module?

Context

In a GWT application, you have to use RPC calls, using entities which are package in external jar archives. With Eclipse, no error appears ; yet when you build the project with Maven2, you get this message:

[INFO] [ERROR] Errors in 'file:/C:/eclipse/workspace/myGwtProject/src/java/com/lalou/jonathan/web/gwt/client/component/JonathanPanel.java'
(...)
[INFO]     [ERROR] Line 24: No source code is available for type com.lalou.jonathan.domain.MyEntity; did you forget to inherit a required module?
(...)
[INFO] Finding entry point classes

Fix

In related jar

In the project to which MyEntity belongs to (here: my/depended/project):

  • create a file com/lalou/jonathan/MyDependedProject.gwt.xml, with as content:
    <module>
     <source path="">
     <include name="**/MyEntity.java"/>
     </source>
    </module>
  • In the pom.xml:
    • Add the source MyEntity.java in built jar. This way, the Java file itself will be considered as a resource, like an XML or property file. To perform this, the quickest manner is to add the following block in the pom.xml:
      <resources>
      <resource>
      <directory>${basedir}/src/java</directory>
      <includes>
      <include>**/MyEntity.java</include>
      </includes>
      </resource>
      </resources>
    • Add an <include>**/*.gwt.xml</include> so that to have to MyDependedProject.gwt.xml file in the built jar.

    In GWT project

    In your *.gwt.xml file, add the dependency:

    <inherits name='com.lalou.jonathan.MyDependedProject' />

    Caution!

    All these operations need be done on all dependencies -either direct or indirect-. Therefore, possibly you may have a huge amount of code to be got.
    Another issue appears when you use a jar of which you do not have the source code, such as in the case of tiers API for instance.