Yes. New property names should all start with "log4j2.", although I did
make it so that no matter what naming scheme you use, they all get
normalized to log4j2.camelCaseName.

On 24 October 2017 at 08:04, Remko Popma <[email protected]> wrote:

> You mean let’s replace all occurrences of `log4j.skipJansi` with
> `log4j2.skipJansi`, in both code and documentation?
>
>
>
> > On Oct 24, 2017, at 14:03, Matt Sicker <[email protected]> wrote:
> >
> > Can you use the new system property naming scheme? This would be
> > log4j2.skipJansi. That property would work regardless with the new system
> > properties parser thing, though the documentation should be more
> consistent
> > now.
> >
> >> On 23 October 2017 at 22:14, <[email protected]> wrote:
> >>
> >> Repository: logging-log4j2
> >> Updated Branches:
> >>  refs/heads/master 00823bd95 -> 73efe3dcf
> >>
> >>
> >> LOG4J2-2087 Jansi now needs to be enabled explicitly (by setting system
> >> property `log4j.skipJansi` to `false`). To avoid causing problems for
> web
> >> applications, Log4j will no longer automatically try to load Jansi
> without
> >> explicit configuration.
> >>
> >>
> >> Project: http://git-wip-us.apache.org/repos/asf/logging-log4j2/repo
> >> Commit: http://git-wip-us.apache.org/repos/asf/logging-log4j2/
> >> commit/73efe3dc
> >> Tree: http://git-wip-us.apache.org/repos/asf/logging-log4j2/tree/
> 73efe3dc
> >> Diff: http://git-wip-us.apache.org/repos/asf/logging-log4j2/diff/
> 73efe3dc
> >>
> >> Branch: refs/heads/master
> >> Commit: 73efe3dcf6787e66177a6485271362c5f989e014
> >> Parents: 00823bd
> >> Author: rpopma <[email protected]>
> >> Authored: Tue Oct 24 12:13:56 2017 +0900
> >> Committer: rpopma <[email protected]>
> >> Committed: Tue Oct 24 12:13:56 2017 +0900
> >>
> >> ----------------------------------------------------------------------
> >> .../log4j/core/appender/ConsoleAppender.java    | 10 ++--
> >> .../log4j/core/layout/PatternLayout.java        | 16 +++++--
> >> .../ConsoleAppenderAnsiMessagesMain.java        |  3 +-
> >> .../ConsoleAppenderAnsiStyleJira180Main.java    |  3 +-
> >> .../ConsoleAppenderAnsiStyleJira272Main.java    |  1 +
> >> .../ConsoleAppenderAnsiStyleJira319Main.java    |  3 +-
> >> .../ConsoleAppenderAnsiStyleLayoutMain.java     |  3 +-
> >> .../ConsoleAppenderAnsiStyleNameLayoutMain.java |  1 +
> >> ...nsoleAppenderHighlightLayoutDefaultMain.java |  1 +
> >> .../ConsoleAppenderHighlightLayoutMain.java     |  1 +
> >> .../ConsoleAppenderJAnsiMessageMain.java        |  7 +--
> >> .../ConsoleAppenderJAnsiXExceptionMain.java     |  7 +--
> >> .../ConsoleAppenderNoAnsiStyleLayoutMain.java   |  2 +-
> >> .../log4j/core/pattern/StyleConverterTest.java  |  6 +++
> >> src/changes/changes.xml                         |  3 ++
> >> src/site/xdoc/manual/layouts.xml.vm             | 48
> ++++++++++++--------
> >> 16 files changed, 76 insertions(+), 39 deletions(-)
> >> ----------------------------------------------------------------------
> >>
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/main/java/org/apache/logging/log4j/
> >> core/appender/ConsoleAppender.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/main/java/org/apache/logging/log4j/core/
> appender/ConsoleAppender.java
> >> b/log4j-core/src/main/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppender.java
> >> index bd2dc16..90d16e6 100644
> >> --- a/log4j-core/src/main/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppender.java
> >> +++ b/log4j-core/src/main/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppender.java
> >> @@ -67,7 +67,7 @@ public final class ConsoleAppender extends
> >> AbstractOutputStreamAppender<OutputSt
> >>      * Enumeration of console destinations.
> >>      */
> >>     public enum Target {
> >> -
> >> +
> >>         /** Standard output. */
> >>         SYSTEM_OUT {
> >>             @Override
> >> @@ -76,7 +76,7 @@ public final class ConsoleAppender extends
> >> AbstractOutputStreamAppender<OutputSt
> >>                 return getCharset("sun.stdout.encoding",
> >> Charset.defaultCharset());
> >>             }
> >>         },
> >> -
> >> +
> >>         /** Standard error output. */
> >>         SYSTEM_ERR {
> >>             @Override
> >> @@ -85,9 +85,9 @@ public final class ConsoleAppender extends
> >> AbstractOutputStreamAppender<OutputSt
> >>                 return getCharset("sun.stderr.encoding",
> >> Charset.defaultCharset());
> >>             }
> >>         };
> >> -
> >> +
> >>         public abstract Charset getDefaultCharset();
> >> -
> >> +
> >>         protected Charset getCharset(final String property, Charset
> >> defaultCharset) {
> >>             return new PropertiesUtil(PropertiesUtil.
> >> getSystemProperties()).getCharsetProperty(property, defaultCharset);
> >>         }
> >> @@ -260,7 +260,7 @@ public final class ConsoleAppender extends
> >> AbstractOutputStreamAppender<OutputSt
> >>             throw new IllegalStateException("Unsupported default
> >> encoding " + enc, ex);
> >>         }
> >>         final PropertiesUtil propsUtil = PropertiesUtil.getProperties()
> ;
> >> -        if (!propsUtil.isOsWindows() || propsUtil.getBooleanProperty("
> log4j.skipJansi")
> >> || direct) {
> >> +        if (!propsUtil.isOsWindows() || propsUtil.getBooleanProperty("
> log4j.skipJansi",
> >> true) || direct) {
> >>             return outputStream;
> >>         }
> >>         try {
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/main/java/org/apache/logging/log4j/
> >> core/layout/PatternLayout.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/main/java/org/apache/logging/log4j/core/
> layout/PatternLayout.java
> >> b/log4j-core/src/main/java/org/apache/logging/log4j/core/
> >> layout/PatternLayout.java
> >> index e4440eb..a6b3a88 100644
> >> --- a/log4j-core/src/main/java/org/apache/logging/log4j/core/
> >> layout/PatternLayout.java
> >> +++ b/log4j-core/src/main/java/org/apache/logging/log4j/core/
> >> layout/PatternLayout.java
> >> @@ -38,6 +38,7 @@ import org.apache.logging.log4j.core.pattern.
> >> LogEventPatternConverter;
> >> import org.apache.logging.log4j.core.pattern.PatternFormatter;
> >> import org.apache.logging.log4j.core.pattern.PatternParser;
> >> import org.apache.logging.log4j.core.pattern.RegexReplacement;
> >> +import org.apache.logging.log4j.util.PropertiesUtil;
> >> import org.apache.logging.log4j.util.Strings;
> >>
> >> /**
> >> @@ -143,7 +144,7 @@ public final class PatternLayout extends
> >> AbstractStringLayout {
> >>
> >>     /**
> >>      * Deprecated, use {@link #newSerializerBuilder()} instead.
> >> -     *
> >> +     *
> >>      * @param configuration
> >>      * @param replace
> >>      * @param pattern
> >> @@ -427,7 +428,7 @@ public final class PatternLayout extends
> >> AbstractStringLayout {
> >>     }
> >>
> >>     private static class PatternSelectorSerializer implements
> Serializer,
> >> Serializer2 {
> >> -
> >> +
> >>         private final PatternSelector patternSelector;
> >>         private final RegexReplacement replace;
> >>
> >> @@ -535,7 +536,7 @@ public final class PatternLayout extends
> >> AbstractStringLayout {
> >>         private boolean alwaysWriteExceptions = true;
> >>
> >>         @PluginBuilderAttribute
> >> -        private boolean disableAnsi;
> >> +        private boolean disableAnsi = !useAnsiEscapeCodes();
> >>
> >>         @PluginBuilderAttribute
> >>         private boolean noConsoleNoAnsi;
> >> @@ -549,6 +550,12 @@ public final class PatternLayout extends
> >> AbstractStringLayout {
> >>         private Builder() {
> >>         }
> >>
> >> +        private boolean useAnsiEscapeCodes() {
> >> +            PropertiesUtil propertiesUtil =
> PropertiesUtil.getProperties()
> >> ;
> >> +            boolean isPlatformSupportsAnsi =
> >> !propertiesUtil.isOsWindows();
> >> +            boolean isJansiRequested = !propertiesUtil.
> >> getBooleanProperty("log4j.skipJansi", true);
> >> +            return isPlatformSupportsAnsi || isJansiRequested;
> >> +        }
> >>
> >>         /**
> >>          * @param pattern
> >> @@ -609,7 +616,8 @@ public final class PatternLayout extends
> >> AbstractStringLayout {
> >>
> >>         /**
> >>          * @param disableAnsi
> >> -         *        If {@code "true"} (default is false), do not output
> >> ANSI escape codes
> >> +         *        If {@code "true"} (default is value of system
> property
> >> `log4j.skipJansi`, or `true` if undefined),
> >> +         *        do not output ANSI escape codes
> >>          */
> >>         public Builder withDisableAnsi(final boolean disableAnsi) {
> >>             this.disableAnsi = disableAnsi;
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/test/java/org/apache/logging/log4j/
> core/appender/
> >> ConsoleAppenderAnsiMessagesMain.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppenderAnsiMessagesMain.java
> b/log4j-core/src/test/java/
> >> org/apache/logging/log4j/core/appender/ConsoleAppenderAnsiMessagesMai
> >> n.java
> >> index f8ea731..f74ab1b 100644
> >> --- a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiMessagesMain.java
> >> +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiMessagesMain.java
> >> @@ -29,7 +29,7 @@ import org.apache.logging.log4j.core.
> >> config.Configurator;
> >>  * <p>
> >>  * Running from a Windows command line from the root of the project:
> >>  * </p>
> >> - *
> >> + *
> >>  * <pre>
> >>  * java -classpath log4j-core\target\test-classes;log4j-core\target\
> >> classes;log4j-api\target\classes;%HOME%\.m2\repository\
> >> org\fusesource\jansi\jansi\1.14\jansi-1.14.jar;
> >> org.apache.logging.log4j.core.appender.ConsoleAppenderAnsiMessagesMain
> >> log4j-core/target/test-classes/log4j2-console.xml
> >>  * </pre>
> >> @@ -39,6 +39,7 @@ public class ConsoleAppenderAnsiMessagesMain {
> >>     private static final Logger LOG = LogManager.getLogger(
> >> ConsoleAppenderAnsiMessagesMain.class);
> >>
> >>     public static void main(final String[] args) {
> >> +        System.setProperty("log4j.skipJansi", "false"); //
> LOG4J2-2087:
> >> explicitly enable
> >>         try (final LoggerContext ctx = Configurator.initialize(
> >> ConsoleAppenderAnsiMessagesMain.class.getName(),
> >>                 "target/test-classes/log4j2-console.xml")) {
> >>             LOG.fatal("\u001b[1;35mFatal message.\u001b[0m");
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/test/java/org/apache/logging/log4j/
> core/appender/
> >> ConsoleAppenderAnsiStyleJira180Main.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppenderAnsiStyleJira180Main.java
> >> b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleJira180Main.java
> >> index 5a7fcee..5bb815d 100644
> >> --- a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleJira180Main.java
> >> +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleJira180Main.java
> >> @@ -27,7 +27,7 @@ import org.apache.logging.log4j.core.
> >> config.Configurator;
> >>  * <p>
> >>  * Running from a Windows command line from the root of the project:
> >>  * </p>
> >> - *
> >> + *
> >>  * <pre>
> >>  * java -classpath log4j-core\target\test-classes;log4j-core\target\
> >> classes;log4j-api\target\classes;%HOME%\.m2\repository\
> >> org\fusesource\jansi\jansi\1.14\jansi-1.14.jar;
> >> org.apache.logging.log4j.core.appender.ConsoleAppenderAnsiStyleJira18
> 0Main
> >> log4j-core/target/test-classes/log4j2-180.xml
> >>  * </pre>
> >> @@ -37,6 +37,7 @@ public class ConsoleAppenderAnsiStyleJira180Main {
> >>     private static final Logger LOG = LogManager.getLogger(
> >> ConsoleAppenderAnsiStyleJira180Main.class);
> >>
> >>     public static void main(final String[] args) {
> >> +        System.setProperty("log4j.skipJansi", "false"); //
> LOG4J2-2087:
> >> explicitly enable
> >>         // System.out.println(System.getProperty("java.class.path"));
> >>         final String config = args.length == 0 ?
> >> "target/test-classes/log4j2-180.xml" : args[0];
> >>         try (final LoggerContext ctx = Configurator.initialize(
> >> ConsoleAppenderAnsiMessagesMain.class.getName(),
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/test/java/org/apache/logging/log4j/
> core/appender/
> >> ConsoleAppenderAnsiStyleJira272Main.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppenderAnsiStyleJira272Main.java
> >> b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleJira272Main.java
> >> index 9889f46..8c8aaa9 100644
> >> --- a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleJira272Main.java
> >> +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleJira272Main.java
> >> @@ -36,6 +36,7 @@ public class ConsoleAppenderAnsiStyleJira272Main {
> >>     private static final Logger LOG = LogManager.getLogger(
> >> ConsoleAppenderAnsiStyleJira272Main.class);
> >>
> >>     public static void main(final String[] args) {
> >> +        System.setProperty("log4j.skipJansi", "false"); //
> LOG4J2-2087:
> >> explicitly enable
> >>         // System.out.println(System.getProperty("java.class.path"));
> >>         final String config = args.length == 0 ?
> >> "target/test-classes/log4j2-272.xml" : args[0];
> >>         try (final LoggerContext ctx = Configurator.initialize(
> >> ConsoleAppenderAnsiMessagesMain.class.getName(), config)) {
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/test/java/org/apache/logging/log4j/
> core/appender/
> >> ConsoleAppenderAnsiStyleJira319Main.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppenderAnsiStyleJira319Main.java
> >> b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleJira319Main.java
> >> index 54ad06c..9d62101 100644
> >> --- a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleJira319Main.java
> >> +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleJira319Main.java
> >> @@ -27,7 +27,7 @@ import org.apache.logging.log4j.core.
> >> config.Configurator;
> >>  * <p>
> >>  * Running from a Windows command line from the root of the project:
> >>  * </p>
> >> - *
> >> + *
> >>  * <pre>
> >>  * java -classpath log4j-core\target\test-classes;log4j-core\target\
> >> classes;log4j-api\target\classes;%HOME%\.m2\repository\
> >> org\fusesource\jansi\jansi\1.14\jansi-1.14.jar;
> >> org.apache.logging.log4j.core.appender.ConsoleAppenderAnsiStyleJira31
> 9Main
> >> log4j-core/target/test-classes/log4j2-319.xml
> >>  * </pre>
> >> @@ -37,6 +37,7 @@ public class ConsoleAppenderAnsiStyleJira319Main {
> >>     private static final Logger LOG = LogManager.getLogger(
> >> ConsoleAppenderAnsiStyleJira319Main.class);
> >>
> >>     public static void main(final String[] args) {
> >> +        System.setProperty("log4j.skipJansi", "false"); //
> LOG4J2-2087:
> >> explicitly enable
> >>         // System.out.println(System.getProperty("java.class.path"));
> >>         final String config = args.length == 0 ?
> >> "target/test-classes/log4j2-319.xml" : args[0];
> >>         try (final LoggerContext ctx = Configurator.initialize(
> >> ConsoleAppenderAnsiMessagesMain.class.getName(),
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/test/java/org/apache/logging/log4j/
> core/appender/
> >> ConsoleAppenderAnsiStyleLayoutMain.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppenderAnsiStyleLayoutMain.java
> >> b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleLayoutMain.java
> >> index 5e3bb0f..758b13e 100644
> >> --- a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleLayoutMain.java
> >> +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleLayoutMain.java
> >> @@ -38,7 +38,7 @@ import org.junit.Test;
> >>  * <pre>
> >>  * java -classpath log4j-core\target\test-classes;log4j-core\target\
> >> classes;log4j-api\target\classes;%HOME%\.m2\repository\
> >> org\fusesource\jansi\jansi\1.14\jansi-1.14.jar;
> >> org.apache.logging.log4j.core.appender.ConsoleAppenderAnsiStyleLayout
> Main
> >> log4j-core/target/test-classes/log4j2-console-style-ansi.xml
> >>  * </pre>
> >> - *
> >> + *
> >>  */
> >> public class ConsoleAppenderAnsiStyleLayoutMain {
> >>
> >> @@ -55,6 +55,7 @@ public class ConsoleAppenderAnsiStyleLayoutMain {
> >>     }
> >>
> >>     public void test(final String[] args) {
> >> +        System.setProperty("log4j.skipJansi", "false"); //
> LOG4J2-2087:
> >> explicitly enable
> >>         // System.out.println(System.getProperty("java.class.path"));
> >>         final String config = args == null || args.length == 0 ?
> >> "target/test-classes/log4j2-console-style-ansi.xml"
> >>                 : args[0];
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/test/java/org/apache/logging/log4j/
> core/appender/
> >> ConsoleAppenderAnsiStyleNameLayoutMain.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppenderAnsiStyleNameLayoutMain.java
> >> b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleNameLayoutMain.java
> >> index 4a2b26a..09f111b 100644
> >> --- a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleNameLayoutMain.java
> >> +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderAnsiStyleNameLayoutMain.java
> >> @@ -32,6 +32,7 @@ public class ConsoleAppenderAnsiStyleNameLayoutMain {
> >>     private static final Logger LOG = LogManager.getLogger(
> >> ConsoleAppenderAnsiStyleNameLayoutMain.class);
> >>
> >>     public static void main(final String[] args) {
> >> +        System.setProperty("log4j.skipJansi", "false"); //
> LOG4J2-2087:
> >> explicitly enable
> >>         try (final LoggerContext ctx = Configurator.initialize(
> >> ConsoleAppenderAnsiMessagesMain.class.getName(),
> >>                 "target/test-classes/log4j2-
> console-style-name-ansi.xml"))
> >> {
> >>             LOG.fatal("Fatal message.");
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/test/java/org/apache/logging/log4j/
> core/appender/
> >> ConsoleAppenderHighlightLayoutDefaultMain.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppenderHighlightLayoutDefaultMain.java
> >> b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderHighlightLayoutDefaultMain.java
> >> index 4c3339d..16afa9b 100644
> >> --- a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderHighlightLayoutDefaultMain.java
> >> +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderHighlightLayoutDefaultMain.java
> >> @@ -32,6 +32,7 @@ public class ConsoleAppenderHighlightLayoutDefaultMain
> {
> >>     private static final Logger LOG = LogManager.getLogger(
> >> ConsoleAppenderHighlightLayoutDefaultMain.class);
> >>
> >>     public static void main(final String[] args) {
> >> +        System.setProperty("log4j.skipJansi", "false"); //
> LOG4J2-2087:
> >> explicitly enable
> >>         try (final LoggerContext ctx = Configurator.initialize(
> >> ConsoleAppenderAnsiMessagesMain.class.getName(),
> >>                 "target/test-classes/log4j2-
> >> console-highlight-default.xml")) {
> >>             LOG.fatal("Fatal message.");
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/test/java/org/apache/logging/log4j/
> core/appender/
> >> ConsoleAppenderHighlightLayoutMain.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppenderHighlightLayoutMain.java
> >> b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderHighlightLayoutMain.java
> >> index 0ca7e8d..34c4355 100644
> >> --- a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderHighlightLayoutMain.java
> >> +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderHighlightLayoutMain.java
> >> @@ -32,6 +32,7 @@ public class ConsoleAppenderHighlightLayoutMain {
> >>     private static final Logger LOG = LogManager.getLogger(
> >> ConsoleAppenderHighlightLayoutMain.class);
> >>
> >>     public static void main(final String[] args) {
> >> +        System.setProperty("log4j.skipJansi", "false"); //
> LOG4J2-2087:
> >> explicitly enable
> >>         try (final LoggerContext ctx = Configurator.initialize(
> >> ConsoleAppenderAnsiMessagesMain.class.getName(),
> >>                 "target/test-classes/log4j2-console-highlight.xml")) {
> >>             LOG.fatal("Fatal message.");
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/test/java/org/apache/logging/log4j/
> core/appender/
> >> ConsoleAppenderJAnsiMessageMain.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppenderJAnsiMessageMain.java
> b/log4j-core/src/test/java/
> >> org/apache/logging/log4j/core/appender/ConsoleAppenderJAnsiMessageMai
> >> n.java
> >> index 6e54505..f800806 100644
> >> --- a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderJAnsiMessageMain.java
> >> +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderJAnsiMessageMain.java
> >> @@ -40,13 +40,13 @@ import org.junit.experimental.categories.Category;
> >>  * <pre>
> >>  * mvn -Dtest=org.apache.logging.log4j.core.appender.
> >> ConsoleAppenderJAnsiMessageMain test
> >>  * </pre>
> >> - *
> >> + *
> >>  * or, on Windows:
> >> - *
> >> + *
> >>  * <pre>
> >>  * java -classpath log4j-core\target\test-classes;log4j-core\target\
> >> classes;log4j-api\target\classes;%USERPROFILE%\.m2\
> >> repository\org\fusesource\jansi\jansi\1.14\jansi-1.14.jar;
> >> org.apache.logging.log4j.core.appender.ConsoleAppenderJAnsiMessageMain
> >> log4j-core/src/test/resources/log4j2-console-msg-ansi.xml
> >>  * </pre>
> >> - *
> >> + *
> >>  */
> >> @Category(Layouts.Jansi.class)
> >> public class ConsoleAppenderJAnsiMessageMain {
> >> @@ -64,6 +64,7 @@ public class ConsoleAppenderJAnsiMessageMain {
> >>     }
> >>
> >>     public void test(final String[] args) {
> >> +        System.setProperty("log4j.skipJansi", "false"); //
> LOG4J2-2087:
> >> explicitly enable
> >>         // System.out.println(System.getProperty("java.class.path"));
> >>         final String config = args == null || args.length == 0 ?
> >> "target/test-classes/log4j2-console-msg-ansi.xml"
> >>                 : args[0];
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/test/java/org/apache/logging/log4j/
> core/appender/
> >> ConsoleAppenderJAnsiXExceptionMain.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppenderJAnsiXExceptionMain.java
> >> b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderJAnsiXExceptionMain.java
> >> index 7780a1d..34901ff 100644
> >> --- a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderJAnsiXExceptionMain.java
> >> +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderJAnsiXExceptionMain.java
> >> @@ -37,13 +37,13 @@ import org.junit.experimental.categories.Category;
> >>  * <pre>
> >>  * mvn -Dtest=org.apache.logging.log4j.core.appender.
> >> ConsoleAppenderJAnsiXExceptionMain test
> >>  * </pre>
> >> - *
> >> + *
> >>  * or, on Windows:
> >> - *
> >> + *
> >>  * <pre>
> >>  * java -classpath log4j-core\target\test-classes;log4j-core\target\
> >> classes;log4j-api\target\classes;%USERPROFILE%\.m2\
> >> repository\org\fusesource\jansi\jansi\1.14\jansi-1.14.jar;
> >> org.apache.logging.log4j.core.appender.ConsoleAppenderJAnsiXException
> Main
> >> log4j-core/src/test/resources/log4j2-console-xex-ansi.xml
> >>  * </pre>
> >> - *
> >> + *
> >>  */
> >> @Category(Layouts.Jansi.class)
> >> public class ConsoleAppenderJAnsiXExceptionMain {
> >> @@ -61,6 +61,7 @@ public class ConsoleAppenderJAnsiXExceptionMain {
> >>     }
> >>
> >>     public void test(final String[] args) {
> >> +        System.setProperty("log4j.skipJansi", "false"); //
> LOG4J2-2087:
> >> explicitly enable
> >>         // System.out.println(System.getProperty("java.class.path"));
> >>         final String config = args == null || args.length == 0 ?
> >> "target/test-classes/log4j2-console-xex-ansi.xml"
> >>                 : args[0];
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/test/java/org/apache/logging/log4j/
> core/appender/
> >> ConsoleAppenderNoAnsiStyleLayoutMain.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> appender/ConsoleAppenderNoAnsiStyleLayoutMain.java
> >> b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderNoAnsiStyleLayoutMain.java
> >> index bb08de4..3bc22d1 100644
> >> --- a/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderNoAnsiStyleLayoutMain.java
> >> +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/appender/
> >> ConsoleAppenderNoAnsiStyleLayoutMain.java
> >> @@ -29,7 +29,7 @@ import org.apache.logging.log4j.core.
> >> config.Configurator;
> >>  * <p>
> >>  * Running from a Windows command line from the root of the project:
> >>  * </p>
> >> - *
> >> + *
> >>  * <pre>
> >>  * java -classpath log4j-core\target\test-classes;log4j-core\target\
> >> classes;log4j-api\target\classes;%HOME%\.m2\repository\
> >> org\fusesource\jansi\jansi\1.14\jansi-1.14.jar;
> >> org.apache.logging.log4j.core.appender.ConsoleAppenderNoAnsiStyleLayo
> utMain
> >> log4j-core/target/test-classes/log4j2-console-style-ansi.xml
> >>  * </pre>
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/log4j-core/src/test/java/org/apache/logging/log4j/
> core/pattern/
> >> StyleConverterTest.java
> >> ----------------------------------------------------------------------
> >> diff --git a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> pattern/StyleConverterTest.java b/log4j-core/src/test/java/
> >> org/apache/logging/log4j/core/pattern/StyleConverterTest.java
> >> index ea62885..248fdc3 100644
> >> --- a/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> pattern/StyleConverterTest.java
> >> +++ b/log4j-core/src/test/java/org/apache/logging/log4j/core/
> >> pattern/StyleConverterTest.java
> >> @@ -24,6 +24,7 @@ import org.apache.logging.log4j.test.
> >> appender.ListAppender;
> >> import org.apache.logging.log4j.util.Strings;
> >> import org.junit.Assert;
> >> import org.junit.Before;
> >> +import org.junit.BeforeClass;
> >> import org.junit.Rule;
> >> import org.junit.Test;
> >>
> >> @@ -38,6 +39,11 @@ public class StyleConverterTest {
> >>         "\u001B[1;31mERROR\u001B[m \u001B[1;36mLoggerTest\u001B[m
> >> o.a.l.l.c.p.StyleConverterTest org.apache.logging.log4j.core.
> >> pattern.StyleConverterTest"
> >>         + Strings.LINE_SEPARATOR;
> >>
> >> +    @BeforeClass
> >> +    public static void beforeClass() {
> >> +        System.setProperty("log4j.skipJansi", "false"); //
> LOG4J2-2087:
> >> explicitly enable
> >> +    }
> >> +
> >>     @Rule
> >>     public LoggerContextRule init = new LoggerContextRule("log4j-
> >> style.xml");
> >>
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/src/changes/changes.xml
> >> ----------------------------------------------------------------------
> >> diff --git a/src/changes/changes.xml b/src/changes/changes.xml
> >> index b8d560e..9dbdd75 100644
> >> --- a/src/changes/changes.xml
> >> +++ b/src/changes/changes.xml
> >> @@ -31,6 +31,9 @@
> >>          - "remove" - Removed
> >>     -->
> >>     <release version="2.10.0" date="2017-MM-DD" description="GA Release
> >> 2.10.0">
> >> +      <action issue="LOG4J2-2087" dev="rpopma" type="fix" due-to="Andy
> >> Gumbrecht">
> >> +        Jansi now needs to be enabled explicitly (by setting system
> >> property `log4j.skipJansi` to `false`). To avoid causing problems for
> web
> >> applications, Log4j will no longer automatically try to load Jansi
> without
> >> explicit configuration.
> >> +      </action>
> >>       <action issue="LOG4J2-2060" dev="rpopma" type="fix">
> >>         AbstractDatabaseManager should make a copy of LogEvents before
> >> holding references to them: AsyncLogger log events are mutable.
> >>       </action>
> >>
> >> http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/
> >> 73efe3dc/src/site/xdoc/manual/layouts.xml.vm
> >> ----------------------------------------------------------------------
> >> diff --git a/src/site/xdoc/manual/layouts.xml.vm
> b/src/site/xdoc/manual/
> >> layouts.xml.vm
> >> index d878a2e..1e8cfb3 100644
> >> --- a/src/site/xdoc/manual/layouts.xml.vm
> >> +++ b/src/site/xdoc/manual/layouts.xml.vm
> >> @@ -912,17 +912,17 @@ WARN  [main]: Message 2</pre>
> >>                 <p>
> >>                   Specifying <code>%throwable{none}</code> or
> >> <code>%throwable{0}</code> suppresses output of the exception.
> >>                 </p>
> >> -                <p>
> >> -                  Use <code>filters(<i>packages</i>)</code> where
> >> <i>packages</i> is a list of package names to
> >> +                <p>
> >> +                  Use <code>filters(<i>packages</i>)</code> where
> >> <i>packages</i> is a list of package names to
> >>                   suppress matching stack frames from stack traces.
> >>                 </p>
> >>                 <p>
> >> -                  Use a <code>separator</code> string to separate the
> >> lines of a stack trace. For example:
> >> -                  <code>separator(|)</code>. The default value is the
> >> <code>line.separator</code> system property,
> >> +                  Use a <code>separator</code> string to separate the
> >> lines of a stack trace. For example:
> >> +                  <code>separator(|)</code>. The default value is the
> >> <code>line.separator</code> system property,
> >>                   which is operating system dependent.
> >>                 </p>
> >>                 <p>
> >> -                  Use <code>ex{suffix(<i>pattern</i>)</code> to add
> the
> >> output of <i>pattern</i> to the output only
> >> +                  Use <code>ex{suffix(<i>pattern</i>)</code> to add
> the
> >> output of <i>pattern</i> to the output only
> >>                   when there is a throwable to print.
> >>                 </p>
> >>               </td>
> >> @@ -944,6 +944,7 @@ WARN  [main]: Message 2</pre>
> >>               </td>
> >>               <td>
> >>                 <p>Adds ANSI colors to the result of the enclosed
> pattern
> >> based on the current event's logging level.
> >> +                   (See Jansi <a href="#enable-jansi">
> configuration</a>.)
> >>                 </p>
> >>                 <p>The default colors for each level are:
> >>                  <table>
> >> @@ -1164,7 +1165,8 @@ WARN  [main]: Message 2</pre>
> >>                 </p>
> >>                 <!-- Copied and tweaked from Javadoc for
> >> org.apache.logging.log4j.core.pattern.JAnsiMessageRenderer -->
> >>                 <p>
> >> -                  Add <code>{ansi}</code> to render messages with ANSI
> >> escape codes (requires JAnsi.)
> >> +                  Add <code>{ansi}</code> to render messages with ANSI
> >> escape codes (requires JAnsi,
> >> +                    see <a href="#enable-jansi">configuration</a>.)
> >>                 </p>
> >>                 <p>
> >>                   The default syntax for embedded ANSI codes is:
> >> @@ -1379,23 +1381,23 @@ WARN  [main]: Message 2</pre>
> >>                 </p>
> >>                 <p>
> >>                   The throwable conversion word can be followed by an
> >> option in the form
> >> -                  <code>%rEx{short}</code> which will only output the
> >> first line of the Throwable or
> >> +                  <code>%rEx{short}</code> which will only output the
> >> first line of the Throwable or
> >>                   <code>%rEx{n}</code> where the first n lines of the
> >> stack trace will be printed.
> >>                 </p>
> >> -                <p>
> >> +                <p>
> >>                   Specifying <code>%rEx{none}</code> or
> >> <code>%rEx{0}</code> will suppress printing of the exception.
> >>                 </p>
> >> -                <p>
> >> -                  Use <code>filters(<i>packages</i>)</code> where
> >> <i>packages</i> is a list of package names to
> >> +                <p>
> >> +                  Use <code>filters(<i>packages</i>)</code> where
> >> <i>packages</i> is a list of package names to
> >>                   suppress matching stack frames from stack traces.
> >>                 </p>
> >>                 <p>
> >> -                  Use a <code>separator</code> string to separate the
> >> lines of a stack trace. For example:
> >> -                  <code>separator(|)</code>. The default value is the
> >> <code>line.separator</code> system property,
> >> +                  Use a <code>separator</code> string to separate the
> >> lines of a stack trace. For example:
> >> +                  <code>separator(|)</code>. The default value is the
> >> <code>line.separator</code> system property,
> >>                   which is operating system dependent.
> >>                 </p>
> >>                 <p>
> >> -                  Use <code>rEx{suffix(<i>pattern</i>)</code> to add
> the
> >> output of <i>pattern</i> to the output only
> >> +                  Use <code>rEx{suffix(<i>pattern</i>)</code> to add
> the
> >> output of <i>pattern</i> to the output only
> >>                   when there is a throwable to print.
> >>                 </p>
> >>               </td>
> >> @@ -1418,6 +1420,7 @@ WARN  [main]: Message 2</pre>
> >>               <td>
> >>                 <p>Uses ANSI escape sequences to style the result of the
> >> enclosed pattern. The style can consist of
> >>                   a comma separated list of style names from the
> >> following table.
> >> +                  (See Jansi <a href="#enable-jansi">
> configuration</a>.)
> >>                   <table>
> >>                     <tr>
> >>                       <th>Style Name</th>
> >> @@ -1645,17 +1648,18 @@ WARN  [main]: Message 2</pre>
> >>                   the first n lines of the stack trace will be printed.
> >> Specifying <code>%xEx{none}</code>
> >>                   or <code>%xEx{0}</code> will suppress printing of the
> >> exception.
> >>                 </p>
> >> -                <p>
> >> -                  Use <code>filters(<i>packages</i>)</code> where
> >> <i>packages</i> is a list of package names to
> >> +                <p>
> >> +                  Use <code>filters(<i>packages</i>)</code> where
> >> <i>packages</i> is a list of package names to
> >>                   suppress matching stack frames from stack traces.
> >>                 </p>
> >>                 <p>
> >> -                  Use a <code>separator</code> string to separate the
> >> lines of a stack trace. For example:
> >> -                  <code>separator(|)</code>. The default value is the
> >> <code>line.separator</code> system property,
> >> +                  Use a <code>separator</code> string to separate the
> >> lines of a stack trace. For example:
> >> +                  <code>separator(|)</code>. The default value is the
> >> <code>line.separator</code> system property,
> >>                   which is operating system dependent.
> >>                 </p>
> >>                 <p>
> >>                  The <code>ansi</code> option renders stack traces with
> >> ANSI escapes code using the JAnsi library.
> >> +                    (See <a href="#enable-jansi">configuration</a>.)
> >>                  Use <code>{ansi}</code> to use the default color
> >> mapping. You can specify your own mappings with
> >>                  <code>key=value</code> pairs. The keys are:
> >>                 </p>
> >> @@ -1821,11 +1825,17 @@ WARN  [main]: Message 2</pre>
> >>             </tr>
> >>             <caption align="top">Pattern Converters</caption>
> >>           </table>
> >> +          <a name="enable-jansi"></a>
> >>           <h4>ANSI Styling on Windows</h4>
> >>           <p>ANSI escape sequences are supported natively on many
> >> platforms but are not by default on Windows. To
> >> -            enable ANSI support simply add the <a href="
> >> http://jansi.fusesource.org/";>Jansi</a> jar to your
> >> -            application and Log4j will automatically make use of it
> when
> >> writing to the console.
> >> +            enable ANSI support add the <a href="
> http://jansi.fusesource.
> >> org/">Jansi</a> jar to your application
> >> +            and set property <code>log4j.skipJansi</code> to
> >> <code>false</code>.
> >> +            This allows Log4j to use Jansi to add ANSI escape codes
> when
> >> writing to the console.
> >>           </p>
> >> +          <p>NOTE: Prior to Log4j 2.10, Jansi was enabled by default.
> The
> >> fact that Jansi requires native code
> >> +              means that Jansi can only be loaded by a single class
> >> loader. For web applications this means the
> >> +              Jansi jar has to be in the web container's classpath. To
> >> avoid causing problems for web applications,
> >> +              Log4j will no longer automatically try to load Jansi
> >> without explicit configuration from Log4j 2.10 onward.</p>
> >>           <h4>Example Patterns</h4>
> >>           <h5>Filtered Throwables</h5>
> >>           <p>This example shows how to filter out classes from
> >> unimportant packages in stack traces.
> >>
> >>
> >
> >
> > --
> > Matt Sicker <[email protected]>
>
>


-- 
Matt Sicker <[email protected]>

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