project.getExtensions().configure(PublishingExtension.class, publishing -> {
                    final ComponentWithVariants mainVariant = component.getMainPublication();
                    publishing.getPublications().create("main", MavenPublication.class, publication -> {
                        MavenPublicationInternal publicationInternal = (MavenPublicationInternal) publication;

    @Internal
    public Property<Publication> getPublication() {
        return publication.get();
    }

    // TODO - this should be an input

    /**
     * Returns the publications of the current project, used in generation to connect the modules of a component together.
     *
     * @since 4.4
     */
    @Internal
    public ListProperty<Publication> getPublications() {
        return publications.get();
    }

                a { id = "a.plugin" }
                b { id = "b.plugin" }
            }
        }

        then:
        def publications = project.services.get(ProjectPublicationRegistry).getPublications(PluginPublication, project.identityPath)
        publications.size() == 2
        publications[0].pluginId == DefaultPluginId.of("a.plugin")
        publications[1].pluginId == DefaultPluginId.of("b.plugin")
    }

    /**
     * Returns the source artifact of the project publication
     *
     * @see #getPublication()
     * @since 5.6
     */
    public FileReference getPublicationSourcePath() {
        return publicationSourcePath;
    }

    /**
     * Sets the source artifact of the project publication
     *
     * @see #getPublication()
     * @since 5.6
     */

    }

    /**
     * The publication to be published.
     *
     * @return The publication to be published
     */
    @Internal
    public MavenPublication getPublication() {
        return publication.get();
    }

    /**
     * Sets the publication to be published.
     *
     * @param publication The publication to be published
     */

    }

    /**
     * The publication to be published.
     *
     * @return The publication to be published
     */
    @Internal
    public IvyPublication getPublication() {
        return publication.get();
    }

    /**
     * Sets the publication to be published.
     *
     * @param publication The publication to be published
     */

                    classpathElements.getExternalDependencies().add(DefaultEclipseExternalDependency.createResolved(projectDependency.getPublication().getFile(), javadoc, source, null, projectDependency.isExported(), createAttributes(projectDependency), createAccessRules(projectDependency)));

Method <org.gradle.api.publish.ivy.tasks.PublishToIvyRepository.getPublication()> does not have raw return type assignable to org.gradle.api.provider.Property in (PublishToIvyRepository.java:0)

Method <org.gradle.plugins.ide.eclipse.model.ProjectDependency.getKind()> does not have raw return type assignable to org.gradle.api.provider.Provider in (ProjectDependency.java:0)
Method <org.gradle.plugins.ide.eclipse.model.ProjectDependency.getPublication()> does not have raw return type assignable to org.gradle.api.provider.Property in (ProjectDependency.java:0)

org.apache.ivy.core.module.id.ModuleId getModuleId(); public final org.apache.ivy.core.module.descriptor.ModuleDescriptor getDescriptor(); public final ResolveData getData(); public final ResolvedModuleRevisi getModuleRevision(); public final long getPublication(); public final long getLastModified(); public final org.apache.ivy.core.module.id.ModuleRevisionId getResolvedId(); public final void clean(); final boolean canExclude(String); public final IvyNodeCallers$Caller[] getCallers(String); public final...