org.apache.inlong.sort.filesystem.shaded.com.amazonaws.SdkThreadLocals Maven / Gradle / Ivy
/*
* Copyright 2015-2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.amazonaws;
import com.amazonaws.internal.SdkThreadLocalsRegistry;
/**
* Utility class to manage {@link ThreadLocal} storage within the AWS SDK.
*
*
* {@code ThreadLocal} removal is especially relevant when the AWS SDK is used
* in an application server that manages a pool of threads across many
* applications (for example Tomcat or Glassfish). If a {@code ThreadLocal} is
* not cleared on application shutdown and the {@code ThreadLocal} value is a
* class from the application classloader then the application classloader
* cannot be garbage collected until the {@code ThreadLocal} is set again or the thread
* is disposed of (Glassfish attempts thread renewal on occasion to help with
* this).
*/
public final class SdkThreadLocals {
private SdkThreadLocals() {
// prevent instantiation
}
/**
* Removes the current thread's values for all {@link ThreadLocal}s used by the
* AWS SDK.
*/
public static void remove() {
SdkThreadLocalsRegistry.remove();
}
}