Add a new Log implementation for JDK 1.4 (or later) logging.

Default behavior of LogSource.getInstance() is now:
* If Log4J is available, return an instance of Log4JCategoryLog
* If JDK 1.4 is available, return an instance of Jdk14Logger
* Otherwise, return an instance of NoOpLogger

As before, this default behavior can be overridden with a system
property, or by calling LogSource.setLogImplementation(), as described
in the package Javadocs.


git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/logging/trunk@138829 13f79535-47bb-0310-9956-ffa450edef68

build.xml

@@ -3,7 +3,7 @@
 
 <!--
         "Logging" component of the Jakarta Commons Subproject
-        $Id: build.xml,v 1.4 2002/01/05 00:34:46 craigmcc Exp $
+        $Id: build.xml,v 1.5 2002/01/05 22:40:40 craigmcc Exp $
 -->
 
 
@@ -129,12 +129,17 @@
 
   <target name="compile" depends="static"
    description="Compile shareable components">
+    <available property="jdk.1.4.present"
+              classname="java.util.logging.Logger"/>
+    <echo  message="jdk.1.4.present=${jdk.1.4.present}"/>
     <javac  srcdir="${source.home}"
            destdir="${build.home}/classes"
              debug="${compile.debug}"
        deprecation="${compile.deprecation}"
           optimize="${compile.optimize}">
       <classpath refid="compile.classpath"/>
+      <exclude name="org/apache/commons/logging/Jdk14Logger.java"
+             unless="jdk.1.4.present"/>
     </javac>
     <copy    todir="${build.home}/classes" filtering="on">
       <fileset dir="${source.home}" excludes="**/*.java"/>