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https://issues.apache.org/jira/browse/LOG4J2-658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14104920#comment-14104920
]
Matt Sicker commented on LOG4J2-658:
------------------------------------
In regards to 4, I downloaded the OpenJDK 1.6 source and there is no
registerShutdownHook method in JavaLangAccess.
{code}
/*
* Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.misc;
import java.security.AccessControlContext;
import sun.reflect.ConstantPool;
import sun.reflect.annotation.AnnotationType;
import sun.nio.ch.Interruptible;
public interface JavaLangAccess {
/** Return the constant pool for a class. */
ConstantPool getConstantPool(Class klass);
/**
* Set the AnnotationType instance corresponding to this class.
* (This method only applies to annotation types.)
*/
void setAnnotationType(Class klass, AnnotationType annotationType);
/**
* Get the AnnotationType instance corresponding to this class.
* (This method only applies to annotation types.)
*/
AnnotationType getAnnotationType(Class klass);
/**
* Returns the elements of an enum class or null if the
* Class object does not represent an enum type;
* the result is uncloned, cached, and shared by all callers.
*/
<E extends Enum<E>> E[] getEnumConstantsShared(Class<E> klass);
/** Set thread's blocker field. */
void blockedOn(Thread t, Interruptible b);
/**
* Returns a new Thread with the given Runnable and an
* inherited AccessControlContext.
*/
Thread newThreadWithAcc(Runnable target, AccessControlContext acc);
}
{code}
However, I was previously unaware of the {{java.lang.Shutdown}} class. That
looks interesting.
> shutdown hook called too early
> ------------------------------
>
> Key: LOG4J2-658
> URL: https://issues.apache.org/jira/browse/LOG4J2-658
> Project: Log4j 2
> Issue Type: Bug
> Affects Versions: 2.0-rc1, 2.0-rc2
> Reporter: Romain Manni-Bucau
>
> Hi
> this issue follow few mail exchanges from the commons list. Here the
> interesting part for log4j2:
> {quote}
> Here what I do (we can move it to another thread since that's 100% log4j2
> related): unzip apache-tomee-1.7.0-SNAPSHOT-webprofile.zip && cd
> apache-tomee-webprofile-1.7.0-SNAPSHOT/ && rm conf/logging.properties &&
> echo 'openejb.log.factory=log4j'>conf/system.properties && cp ~/log4j2.xml
> conf/log4j2.xml && cp
> ~/.m2/repository/org/apache/logging/log4j/log4j-api/2.0-rc2-SNAPSHOT/log4j-api-2.0-rc2-SNAPSHOT.jar
> lib/ && cp
> ~/.m2/repository/org/apache/logging/log4j/log4j-core/2.0-rc2-SNAPSHOT/log4j-core-2.0-rc2-SNAPSHOT.jar
> lib/ && cp
> ~/.m2/repository/org/apache/logging/log4j/log4j-1.2-api/2.0-rc2-SNAPSHOT/log4j-1.2-api-2.0-rc2-SNAPSHOT.jar
> lib/ && ./bin/catalina.sh
> it makes server starting with log4j2 logs, if you ctrl+c logs are not
> printed. Sure it is cause context is closed too early and then loggers have
> NullConfiguration. (If I debug in java.lang.ApplicationShutdownHooks#runHooks
> to wait all hooks exec it works)
> {quote}
> Basically the issue is that when shutting down with ctrl+C some logs are
> swallowed.
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