Replace "JCL" with "Commons Logging".
Reformat sligthly because "Commons Logging" is wider than "JCL". git-svn-id: https://svn.apache.org/repos/asf/commons/proper/logging/trunk@569145 13f79535-47bb-0310-9956-ffa450edef68
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@@ -26,8 +26,8 @@ $Id$
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INTRODUCTION:
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INTRODUCTION:
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============
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============
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This release of Apache Commons Logging (JCL) is a maintenance release, with
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This release of Apache Commons Logging is a maintenance release, with just a
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just a couple of fixes for using JCL under restrictive security policies.
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couple of fixes for using Commons Logging under restrictive security policies.
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All core classes were compiled with Maven using a 1.4.x JDK, with target set
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All core classes were compiled with Maven using a 1.4.x JDK, with target set
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to 1.1 and source set to 1.2. Commons Logging may work on some
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to 1.1 and source set to 1.2. Commons Logging may work on some
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@@ -57,15 +57,15 @@ None.
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The protected method LogFactory.getContextClassLoader has been reverted to pre-1.1
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The protected method LogFactory.getContextClassLoader has been reverted to pre-1.1
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behaviour. In earlier releases, this method did not use an AccessController when
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behaviour. In earlier releases, this method did not use an AccessController when
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obtaining the context classloader. In version 1.1 it did. In this release, it has
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obtaining the context classloader. In version 1.1 it did. In this release, it has
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reverted to not using an AccessController; any user-level code that needs to obtain a
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reverted to not using an AccessController; any user-level code that needs to obtain
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context classloader should itself create an AccessController, and call the
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a context classloader should itself create an AccessController, and call the
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LogFactory.getContextClassLoader method via the doPrivileged method. This fixes a
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LogFactory.getContextClassLoader method via the doPrivileged method. This fixes a
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potential security issue, where untrusted code could get access to the context
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potential security issue, where untrusted code could get access to the context
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classloader if a signed JCL library was in the classpath.
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classloader if a signed Commons Logging library was in the classpath.
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== Dependencies ==
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== Dependencies ==
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Commons-logging has no mandatory dependencies.
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Commons Logging has no mandatory dependencies.
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Java 1.2 and later are supported. It may be possible to use this release with
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Java 1.2 and later are supported. It may be possible to use this release with
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java 1.1 but this has not been tested; the unit tests certainly don't run on
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java 1.1 but this has not been tested; the unit tests certainly don't run on
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@@ -79,8 +79,8 @@ base implementation and adapters to a number of popular logging libraries.
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File commons-logging-adapters-nn.jar includes only the adapters to various
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File commons-logging-adapters-nn.jar includes only the adapters to various
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concrete logging libraries. When commons-logging-nn.jar or
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concrete logging libraries. When commons-logging-nn.jar or
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commons-logging-api-nn.jar is deployed in a container classpath, then this
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commons-logging-api-nn.jar is deployed in a container classpath, then this
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adapters-only jar file should be deployed in the webapp, not the complete JCL
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adapters-only jar file should be deployed in the webapp, not the complete Commons
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distribution. This ensures that the core Log/LogFactory classes are only
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Logging distribution. This ensures that the core Log/LogFactory classes are only
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deployed via one classloader, thus avoiding "Log4JLogger does not implement Log"
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deployed via one classloader, thus avoiding "Log4JLogger does not implement Log"
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and similar problems.
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and similar problems.
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@@ -92,17 +92,17 @@ The file commons-logging-api-nn.jar may be used as a declared dependency for
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projects that care about "transitive dependencies" and can't handle jar files
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projects that care about "transitive dependencies" and can't handle jar files
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such as commons-logging-nn.jar which have "optional" dependencies depending on
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such as commons-logging-nn.jar which have "optional" dependencies depending on
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how they are used. In addition, this jar file can be useful for "rebundlers" of
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how they are used. In addition, this jar file can be useful for "rebundlers" of
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JCL who recompile the source-code but who may not be able to recompile against
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Commons Logging who recompile the source-code but who may not be able to
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the full set of supported adapters; such projects should be able to at least
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recompile against the full set of supported adapters; such projects should be
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recreate an equivalent of this jar file.
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able to at least recreate an equivalent of this jar file.
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== General Notes ==
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== General Notes ==
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The Apache Commons project has migrated to the Subversion version control system
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The Apache Commons project has migrated to the Subversion version control system
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(previously, CVS was used). There should be no effect on users of the JCL
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(previously, CVS was used). There should be no effect on users of the Commons
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library, but obviously the process of examining the latest source code, and of
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Logging library, but obviously the process of examining the latest source code,
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creating patches for JCL has now changed. Please see the Apache Commons
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and of creating patches for Commons Logging has now changed. Please see the
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website for details (http://commons.apache.org/).
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Apache Commons website for details (http://commons.apache.org/).
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The Apache Commons project has now moved to using the Apache JIRA installation
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The Apache Commons project has now moved to using the Apache JIRA installation
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as its bugtracking system (formerly, the Apache Bugzilla installation was used).
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as its bugtracking system (formerly, the Apache Bugzilla installation was used).
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@@ -118,16 +118,17 @@ Logging with Maven 1.x will be removed in a future version of Commons Logging.
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== Bugs Fixed ==
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== Bugs Fixed ==
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* LOGGING-106: JCL 1.1 was completely unusable under a security policy that prevented
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* LOGGING-106: Commons Logging 1.1 was completely unusable under a security
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access to system properties. Even signing/authorising the JCL library was not
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policy that prevented access to system properties. Even signing/authorising
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sufficient. This has been fixed by (a) catching SecurityException and falling back
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the Commons Logging library was not sufficient. This has been fixed by (a)
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to a sensible default, and (b) using AccessController so JCL can be granted
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catching SecurityException and falling back to a sensible default, and (b)
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privileges without needing the caller to have them too.
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using AccessController so Commons Logging can be granted privileges without
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needing the caller to have them too.
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* LOGGING-107: JCL 1.1 auto-discovery failed under a security policy that prevented
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* LOGGING-107: Commons Logging 1.1 auto-discovery failed under a security
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calls to ClassLoader.getParent. Signing/authorising the JCL library was not
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policy that prevented calls to ClassLoader.getParent. Signing/authorising the
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sufficient as an AccessController was not used. This has been fixed by catching
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Commons Logging library was not sufficient as an AccessController was not used.
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SecurityException and using an AccessController.
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This has been fixed by catching SecurityException and using an AccessController.
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* LOGGING-111: Show the contents of chained exceptions, to make debugging easier,
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* LOGGING-111: Show the contents of chained exceptions, to make debugging easier,
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in particular when using Commons Logging together with Log4J.
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in particular when using Commons Logging together with Log4J.
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@@ -135,19 +136,20 @@ Logging with Maven 1.x will be removed in a future version of Commons Logging.
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* LOGGING-113: pom.xml in maven repository does not list dependencies as optional.
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* LOGGING-113: pom.xml in maven repository does not list dependencies as optional.
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* MEV-392 (http://jira.codehaus.org/browse/MEV-392)
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* MEV-392 (http://jira.codehaus.org/browse/MEV-392)
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As JCL didn't provide a Maven2 pom.xml file, one was helpfully created by people
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As Commons Logging didn't provide a Maven2 pom.xml file, one was helpfully
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not involved with the commons-logging project and published to the standard maven
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created by people not involved with the commons-logging project and published
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repositories. Unfortunately this pom declared normal dependencies on all the logging
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to the standard maven repositories. Unfortunately this pom declared normal
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libraries that are supported by the core JCL distribution, meaning they all get pulled
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dependencies on all the logging libraries that are supported by the core
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into a project that declares a dependency on JCL1.1. This release now provides an
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Commons Logging distribution, meaning they all get pulled into a project that
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declares a dependency on Commons Logging 1.1. This release now provides an
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"official" pom.xml which declares these dependencies as optional so they aren't
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"official" pom.xml which declares these dependencies as optional so they aren't
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automatically included in projects that depend on JCL 1.1.1.
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automatically included in projects that depend on Commons Logging 1.1.1.
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* (no bug#): Fix thread-safety bug (SimpleDateFormat.format is not thread-safe).
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* (no bug#): Fix thread-safety bug (SimpleDateFormat.format is not thread-safe).
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Thanks to Martin Wilson of bright-interactive for the bug report.
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Thanks to Martin Wilson of bright-interactive for the bug report.
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* (no bug#): Security issue regarding access to context classloader (see incompatibilities
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* (no bug#): Security issue regarding access to context classloader (see
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section above).
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incompatibilities section above).
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DEPRECATIONS:
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DEPRECATIONS:
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============
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============
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