checker.src.org.checkerframework.checker.lock.qual.LockHeld Maven / Gradle / Ivy

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The Checker Framework enhances Java’s type system to make it more powerful and useful. This lets software developers detect and prevent errors in their Java programs. The Checker Framework includes compiler plug-ins ("checkers") that find bugs or verify their absence. It also permits you to write your own compiler plug-ins.

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package org.checkerframework.checker.lock.qual;

import org.checkerframework.framework.qual.InvisibleQualifier;
import org.checkerframework.framework.qual.SubtypeOf;

import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Indicates that an expression is used as a lock and the lock
 * is known to be held on the current thread.
 * 
 *
 * This annotation may not be written in source code; it is an
 * implementation detail of the checker.
 *
 * @see LockPossiblyHeld
 * @checker_framework.manual #lock-checker Lock Checker
 */
@SubtypeOf(LockPossiblyHeld.class) // This is the bottom type in this hierarchy
@InvisibleQualifier
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({})
public @interface LockHeld {}