Deprecate org.apache.commons.logging.LogSource.jdk14IsAvailable

src/changes/changes.xml

@@ -46,6 +46,7 @@ The <action> type attribute can be add,update,fix,remove.
     <release version="1.3.2" date="2024-05-11" description="This is a feature and maintenance release. Java 8 or later is required.">
       <action dev="ggregory" issue="LOGGING-190" type="fix" due-to="Hannes Wellmann, Gary Gregory, Johan Compagner">Add OSGi metadata to enable Service Loader Mediator #234.</action>
       <action dev="ggregory" issue="LOGGING-191" type="fix" due-to="Hannes Wellmann, Gary Gregory, Johan Compagner">Apache commons logging shows 1.4 as latest release instead of 1.3.1.</action>
+      <action dev="ggregory" type="fix" due-to="Gary Gregory">Deprecate org.apache.commons.logging.LogSource.jdk14IsAvailable.</action>
       <!-- UPDATE -->
       <action dev="ggregory" type="update" due-to="Dependabot">Bump org.apache.commons:commons-parent from 67 to 69 #240.</action>
       <action dev="ggregory" type="update" due-to="Dependabot">Bump org.slf4j:slf4j-api from 2.0.12 to 2.0.13 #248.</action>

src/main/java/org/apache/commons/logging/LogSource.java

@@ -61,8 +61,13 @@ public class LogSource {
     /** Is Log4j available (in the current classpath) */
     static protected boolean log4jIsAvailable;
 
-    /** Is JDK 1.4 logging available */
-    static protected boolean jdk14IsAvailable;
+    /** 
+     * Is JDK 1.4 logging available, always true.
+     *
+     * @deprecated Java 8 is the baseline and includes JUL.
+     */
+    @Deprecated
+    static protected boolean jdk14IsAvailable = true;
 
     /** Constructor for current log class */
     static protected Constructor<?> logImplctor;
@@ -77,9 +82,6 @@ public class LogSource {
         // Is Log4J Available?
         log4jIsAvailable = isClassForName("org.apache.log4j.Logger");
 
-        // Is JDK 1.4 Logging Available?
-        jdk14IsAvailable = isClassForName("org.apache.commons.logging.impl.Jdk14Logger");
-
         // Set the default Log implementation
         String name = null;
         try {
@@ -104,10 +106,8 @@ public class LogSource {
             try {
                 if (log4jIsAvailable) {
                     setLogImplementation("org.apache.commons.logging.impl.Log4JLogger");
-                } else if (jdk14IsAvailable) {
-                    setLogImplementation("org.apache.commons.logging.impl.Jdk14Logger");
                 } else {
-                    setLogImplementation("org.apache.commons.logging.impl.NoOpLog");
+                    setLogImplementation("org.apache.commons.logging.impl.Jdk14Logger");
                 }
             } catch (final Throwable t) {
                 try {

src/test/java/org/apache/commons/logging/LogSourceTest.java

@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.commons.logging;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class LogSourceTest {
+
+    @SuppressWarnings("deprecation")
+    public void testJdk14IsAvailable() throws Exception {
+        assertTrue(LogSource.jdk14IsAvailable);
+    }
+}