eclipse {
               classpath {
                   file {
                       whenMerged { classpath ->
                           classpath.entries.removeAll { it.kind == 'output' }
                           classpath.entries.add(new org.gradle.plugins.ide.eclipse.model.Output('$firstPath'))
                           classpath.entries.add(new org.gradle.plugins.ide.eclipse.model.Output('$secondPath'))

                    .fold(ClassPath.EMPTY) { classPath, module -> classPath + module.classpath }
                    .asFiles
            )
        }
}


internal
data class StandardKotlinBuildScriptTemplateModel(
    private val classPath: List<File>
) : KotlinBuildScriptTemplateModel, Serializable {

    override fun getClassPath() = classPath

package org.gradle.kotlin.dsl.resolver

import com.nhaarman.mockito_kotlin.doReturn
import com.nhaarman.mockito_kotlin.mock
import org.gradle.internal.classpath.ClassPath
import org.gradle.kotlin.dsl.fixtures.FolderBasedTest
import org.gradle.kotlin.dsl.resolver.SourcePathProvider.sourcePathFor
import org.hamcrest.CoreMatchers.anyOf
import org.hamcrest.CoreMatchers.hasItems
import org.hamcrest.CoreMatchers.not
import org.hamcrest.MatcherAssert.assertThat

 */
package org.gradle.api.internal.classpath;

import org.gradle.internal.classpath.ClassPath;

import java.util.Set;

/**
 * Meta-data about a dynamically loadable module.
 */
public interface Module {
    /**
     * Returns the classpath for the module implementation. This is the classpath of the module itself. Does not include any dependencies.
     */
    ClassPath getImplementationClasspath();

    /**

        assertThat(
            classPath.collect { it.name } as List<String>,
            hasItems(fileNameSetOf(files))
        )
    }

    protected static void assertExcludes(List<File> classPath, File... files) {
        assertThat(
            classPath.collect { it.name } as List<String>,
            not(hasItems(fileNameSetOf(files)))
        )
    }

                if (classpath instanceof Buildable) {
                    context.add(classpath);
                }
            }
        };
    }

    private static List<File> collectJarsFromClasspath(Iterable<File> classpath, Set<String> jarNames) {
        return stream(classpath.spliterator(), false)
            .filter(file -> jarNames.contains(file.getName()))

    private Collection<String> arguments;
    private FileCollection classpath;
    private DeploymentRegistry.ChangeBehavior changeBehavior = DeploymentRegistry.ChangeBehavior.RESTART;

    @Classpath
    public FileCollection getClasspath() {
        return classpath;
    }

    public void setClasspath(FileCollection classpath) {
        this.classpath = classpath;
    }

    @Input

class EclipseClasspathFixture {
    final TestFile userHomeDir
    final Node classpath

    private EclipseClasspathFixture(TestFile userHomeDir, Node classpath) {
        this.userHomeDir = userHomeDir
        this.classpath = classpath
    }

    static EclipseClasspathFixture create(TestFile projectDir, TestFile userHomeDir) {
        TestFile file = projectDir.file('.classpath')
        file.assertExists()

        then:
        model.classpath.downloadJavadoc

        when: "configure classpath file"
        model.classpath.file({ fcm -> fcm.xmlTransformer } as Action<XmlFileContentMerger>)

        then:
        1 * xmlMerger.getXmlTransformer()

        when: "configure classpath XML"
        model.classpath.file.withXml(xmlAction)

        then:
        1 * xmlTransformer.addAction(xmlAction)
    }

           apply plugin: 'eclipse'
           eclipse {
               classpath {
                   containers 'containerPath'
                   file {
                       whenMerged { classpath ->
                           classpath.entries.find { it.path == 'containerPath' }.entryAttributes.customKey = 'customValue'
                       }
                   }
               }
           }
        """