* See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.process.internal.health.memory;

/**
 * Memory holder.
 */
public interface MemoryHolder {

    /**
     * Attempt to release system memory.
     *
     * @param memoryAmountBytes The amount of system memory to release.
     * @return The amount of released system memory

        given:
        osMemoryInfo.freeMemory =  MemoryAmount.of(1).bytes
        def memoryManager = newMemoryManager()

        and:
        def holder1 = Mock(MemoryHolder)
        def holder2 = Mock(MemoryHolder)
        memoryManager.addMemoryHolder(holder1)
        memoryManager.addMemoryHolder(holder2)

        when:
        memoryManager.requestFreeMemory(MemoryAmount.ofGigaBytes(5).bytes)

            LOGGER.debug("{} {} memory requested, {} free", requestedFreeMemory, name, freeMemory);
            List<MemoryHolder> memoryHolders;
            synchronized (holdersLock) {
                memoryHolders = new ArrayList<MemoryHolder>(holders);
            }
            for (MemoryHolder holder : memoryHolders) {
                long released = holder.attemptToRelease(toReleaseMemory);

import org.gradle.process.internal.health.memory.MemoryAmount;
import org.gradle.process.internal.health.memory.MemoryHolder;

import java.util.ArrayList;
import java.util.List;

public class WorkerDaemonExpiration implements MemoryHolder {

    private static final Logger LOGGER = Logging.getLogger(WorkerDaemonExpiration.class);

    private final WorkerDaemonClientsManager clientsManager;

     *
     * @param holder The memory resource holder to register
     */
    void addMemoryHolder(MemoryHolder holder);

    /**
     * Unregister a memory resource holder.
     *
     * @param holder The memory resource holder to unregister
     */
    void removeMemoryHolder(MemoryHolder holder);

    /**
     * Request an amount of free system memory.
     *

Class <org.gradle.process.internal.health.memory.MemoryHolder> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (MemoryHolder.java:0)
Class <org.gradle.process.internal.health.memory.MemoryManager> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (MemoryManager.java:0)