Add slf4j jul bridge

Author: adangel

kepler/kepler.target

@@ -21,6 +21,8 @@
             <unit id="org.slf4j.api.source" version="1.7.2.v20121108-1250"/>
             <unit id="ch.qos.logback.slf4j" version="1.0.7.v20121108-1250"/>
             <unit id="ch.qos.logback.slf4j.source" version="1.0.7.v20121108-1250"/>
+            <unit id="org.slf4j.jul" version="1.7.2.v20121108-1250"/>
+            <unit id="org.slf4j.jul.source" version="1.7.2.v20121108-1250"/>
         </location>
     </locations>
     <targetJRE path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7"/>

net.sourceforge.pmd.eclipse.plugin/META-INF/MANIFEST.MF

@@ -19,7 +19,8 @@ Require-Bundle: org.apache.commons.logging;bundle-version="1.0.4",
  org.eclipse.wst.xml.core,
  org.eclipse.ui.workbench.texteditor,
  ch.qos.logback.classic,
- ch.qos.logback.core
+ ch.qos.logback.core,
+ org.slf4j.jul
 Bundle-ActivationPolicy: lazy
 Bundle-RequiredExecutionEnvironment: JavaSE-1.7
 Bundle-Vendor: %plugin.provider

net.sourceforge.pmd.eclipse.plugin/src/main/java/net/sourceforge/pmd/eclipse/logging/internal/LogbackConfiguration.java

@@ -9,9 +9,11 @@
 import org.eclipse.core.runtime.Status;
 import org.slf4j.ILoggerFactory;
 import org.slf4j.LoggerFactory;
+import org.slf4j.bridge.SLF4JBridgeHandler;
 
 import net.sourceforge.pmd.eclipse.plugin.PMDPlugin;
 
+import ch.qos.logback.classic.Logger;
 import ch.qos.logback.classic.LoggerContext;
 import ch.qos.logback.classic.encoder.PatternLayoutEncoder;
 import ch.qos.logback.classic.filter.ThresholdFilter;
@@ -43,8 +45,12 @@ public void configureLogback() {
         logbackEclipseAppender.setName(PMDPlugin.PLUGIN_ID);
         logbackEclipseAppender.start();
 
-        ch.qos.logback.classic.Logger l = logbackContext.getLogger(ROOT_LOG_ID);
+        Logger l = logbackContext.getLogger(ROOT_LOG_ID);
         l.addAppender(logbackEclipseAppender);
+
+        if (!SLF4JBridgeHandler.isInstalled()) {
+            SLF4JBridgeHandler.install();
+        }
     }
 
     public void unconfigureLogback() {
@@ -53,8 +59,10 @@ public void unconfigureLogback() {
             return;
         }
 
-        ch.qos.logback.classic.Logger l = logbackContext.getLogger(ROOT_LOG_ID);
+        Logger l = logbackContext.getLogger(ROOT_LOG_ID);
         l.detachAndStopAllAppenders();
+
+        SLF4JBridgeHandler.uninstall();
     }
 
     private void configureLogs(String logFileName, String logLevel) {
@@ -96,7 +104,7 @@ private void configureLogs(String logFileName, String logLevel) {
 
         appender.start();
 
-        ch.qos.logback.classic.Logger rootLogger = logbackContext.getLogger(ROOT_LOG_ID);
+        Logger rootLogger = logbackContext.getLogger(ROOT_LOG_ID);
         rootLogger.addAppender(appender);
     }
 
@@ -106,7 +114,7 @@ public void applyLogPreferences(String logFileName, String logLevel) {
             return;
         }
 
-        ch.qos.logback.classic.Logger rootLogger = logbackContext.getLogger(ROOT_LOG_ID);
+        Logger rootLogger = logbackContext.getLogger(ROOT_LOG_ID);
         Appender<ILoggingEvent> appender = rootLogger.getAppender(PMD_ECLIPSE_APPENDER_NAME);
         if (appender != null) {
             rootLogger.detachAppender(appender);