HashCode getSecondaryInputHash();

    void isolateParametersIfNotAlready();

    FileNormalizer getInputArtifactNormalizer();

    FileNormalizer getInputArtifactDependenciesNormalizer();

    boolean isIsolated();

    DirectorySensitivity getInputArtifactDirectorySensitivity();

    DirectorySensitivity getInputArtifactDependenciesDirectorySensitivity();

    LineEndingSensitivity getInputArtifactLineEndingNormalization();

:gradle-issues: https://github.com/gradle/gradle/issues/

= Isolated Projects

Isolated Projects is a pre-alpha Gradle feature that extends the configuration cache to further improve performance, in particular the performance of Android Studio and IDEA sync.

When isolated projects is enabled, the configuration model of Gradle projects are "isolated" from each other.

    configurations.ok.attributes.attribute(attr, value)

    value[0].name = 'other'
    value.add(new Thing(name: 'c'))

    def isolated = configurations.ok.attributes.getAttribute(attr)
    assert isolated.size() == 2
    assert isolated[0].name == 'a'
    assert isolated[1].name == 'b'
"""

        expect:
        succeeds()
    }

        then: "fetching with Isolated Projects"
        fixture.assertStateStored {
            modelsCreated(":", GradleProject, IsolatedGradleProjectInternal)
            modelsCreated(":lib1", IsolatedGradleProjectInternal)
        }

        checkGradleProject(projectModel, expectedProjectModel)

        when: "fetching again with Isolated Projects"

     * @see IsolatedAction for the requirements to isolated actions
     * @since 8.8
     */
    @Incubating
    void beforeProject(IsolatedAction<? super Project> action);

    /**
     * Adds an {@link IsolatedAction isolated action} to be called immediately after a project is evaluated.
     *
     * @param action The action to execute.
     * @see IsolatedAction for the requirements to isolated actions
     * @since 8.8
     */

        reply.class == payloadClass
    }

    def "handles nested objects which are not visible from root object ClassLoader"() {
        def parent = isolated(WrapperPayload, PayloadInterface)
        def wrapperClass = parent.loadClass(WrapperPayload.name)
        def payloadClass = isolated(parent, CustomPayload).loadClass(CustomPayload.name)
        assertNotVisible(wrapperClass, payloadClass)

        then:
        configurationCache.assertStateLoaded()
    }

    @Issue("https://github.com/gradle/gradle/issues/26049")
    // Isolated Projects option is explicitly controlled by the test
    @Requires(IntegTestPreconditions.NotIsolatedProjects)
    def "isolated projects flag is part of the cache key"() {
        def isolatedProjects = new IsolatedProjectsFixture(this)

        when:
        configurationCacheRun "help"

/**
 * Isolatable objects can return an isolated instance of the given type T from which this object was created.
 * An <b>isolated</b> instance has the same internal state as the original object on which this isolatable was based,
 * but it is guaranteed not to retain any references to mutable state from the original instance.
 * <p>

 */

package org.gradle.api;

import java.io.Serializable;

/**
 * Defines an action that is applied to objects of type {@link T}, with each target getting its own isolated action instance.
 *
 * Each isolated action is re-created through Configuration Cache serialization before it is applied to a target.
 * This approach ensures that sharing mutable state across targets via any means

     * @return a copy of this builder
     */
    IsolatedAntBuilder withClasspath(Iterable<File> classpath);

    /**
     * Executes the given closure against an isolated {@link org.gradle.api.AntBuilder} instance. The builder will
     * have visible to it an isolated version of Ant, Groovy and the specified libraries (if any). Each call to this
     * method is given a separate Ant project.
     */
    void execute(Closure antClosure);