Author: ceki Date: Thu May 3 20:33:27 2007 New Revision: 1520 Added: logback/trunk/logback-classic/src/main/java/ch/qos/logback/classic/helpers/PlatformInfo.java Modified: logback/trunk/logback-classic/src/main/java/ch/qos/logback/classic/joran/JoranConfigurator.java Log: Fixed JMX related problem observed when running under JDK 1.4. For more details please see: http://marc.info/?l=logback-user&m=117766102225897&w=2 Added: logback/trunk/logback-classic/src/main/java/ch/qos/logback/classic/helpers/PlatformInfo.java ============================================================================== --- (empty file) +++ logback/trunk/logback-classic/src/main/java/ch/qos/logback/classic/helpers/PlatformInfo.java Thu May 3 20:33:27 2007 @@ -0,0 +1,25 @@ +package ch.qos.logback.classic.helpers; + +/** + * This class provides information about the runtime platform. + * + * @author Ceki Gulcu + * */ +public class PlatformInfo { + + private static final int UNINITIALIZED = -1; + + private static int hasJMXObjectName = UNINITIALIZED; + + public static boolean hasJMXObjectName() { + if (hasJMXObjectName == UNINITIALIZED) { + try { + Class.forName("javax.management.ObjectName"); + hasJMXObjectName = 1; + } catch (Throwable e) { + hasJMXObjectName = 0; + } + } + return (hasJMXObjectName == 1); + } +} Modified: logback/trunk/logback-classic/src/main/java/ch/qos/logback/classic/joran/JoranConfigurator.java ============================================================================== --- logback/trunk/logback-classic/src/main/java/ch/qos/logback/classic/joran/JoranConfigurator.java (original) +++ logback/trunk/logback-classic/src/main/java/ch/qos/logback/classic/joran/JoranConfigurator.java Thu May 3 20:33:27 2007 @@ -10,6 +10,7 @@ package ch.qos.logback.classic.joran; +import ch.qos.logback.classic.helpers.PlatformInfo; import ch.qos.logback.classic.joran.action.ConfigurationAction; import ch.qos.logback.classic.joran.action.ConsolePluginAction; import ch.qos.logback.classic.joran.action.EvaluatorAction; @@ -59,7 +60,12 @@ .addRule(new Pattern("configuration/appender/layout"), new LayoutAction()); - rs.addRule(new Pattern("configuration/jmxConfigurator"), new JMXConfiguratorAction()); + // add jmxConfigurator only if we have JMX available. + // If running under JDK 1.4 (retrotranslateed logback) then we + // might not have JMX. + if(PlatformInfo.hasJMXObjectName()) { + rs.addRule(new Pattern("configuration/jmxConfigurator"), new JMXConfiguratorAction()); + } rs.addRule(new Pattern("configuration/include"), new IncludeFileAction()); rs.addRule(new Pattern("configuration/consolePlugin"), new ConsolePluginAction());