A classpath provider computes an unresolved classpath for a launch configuration, and resolves classpath entries for a launch configuration. A classpath provider is defined as an extension of type org.eclipse.jdt.launching.classpathProvider.

A provider is registered with an identifier that can be referenced by a launch configuration. A classpath provider is consulted to compute a classpath or source lookup path when a launch configuration references a provider in one or both of the following attributes:

• ATTR_CLASSPATH_PROVIDER
• ATTR_SOURCE_PATH_PROVIDER

A provider extension is defined in plugin.xml. Following is an example definition of a runtime classpath provider extension.

 <extension point="org.eclipse.jdt.launching.classpathProviders">
   <classpathProvider 
      id="com.example.ExampleClasspathProvider"
      class="com.example.ExampleClasspathProviderImpl"
   </classpathProvider>
 </extension>
 

The attributes are specified as follows:

• id specifies a unique identifier for this extension. This identifier may be used to reference a provider on one of the launch configuration attributes mentioned above.
• class specifies the fully qualified name of the Java class that implements IRuntimeClasspathProvider.

Clients may implement this interface.