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package jdk.internal.ref;

import jdk.internal.misc.InnocuousThread;

import java.lang.ref.Cleaner;
import java.util.concurrent.ThreadFactory;

CleanerFactory provides a Cleaner for use within system modules. The cleaner is created on the first reference to the CleanerFactory.
/** * CleanerFactory provides a Cleaner for use within system modules. * The cleaner is created on the first reference to the CleanerFactory. */
public final class CleanerFactory { /* The common Cleaner. */ private final static Cleaner commonCleaner = Cleaner.create(new ThreadFactory() { @Override public Thread newThread(Runnable r) { return InnocuousThread.newSystemThread("Common-Cleaner", r, Thread.MAX_PRIORITY - 2); } });
Cleaner for use within system modules. This Cleaner will run on a thread whose context class loader is null. The system cleaning action to perform in this Cleaner should handle a null context class loader.
Returns:a Cleaner for use within system modules
/** * Cleaner for use within system modules. * * This Cleaner will run on a thread whose context class loader * is {@code null}. The system cleaning action to perform in * this Cleaner should handle a {@code null} context class loader. * * @return a Cleaner for use within system modules */
public static Cleaner cleaner() { return commonCleaner; } }