Re-enable log4j2 JMX support

Author: dizzzz

exist-parent/pom.xml

@@ -855,6 +855,7 @@
                             <user.timezone>Europe/Berlin</user.timezone>
                             <java.locale.providers>JRE,CLDR,SPI</java.locale.providers>
                             <log4j.configurationFile>${project.build.testOutputDirectory}/log4j2.xml</log4j.configurationFile>
+                            <log4j2.disableJmx>false</log4j2.disableJmx>
                         </systemPropertyVariables>
                     </configuration>
                 </plugin>

exist-start/src/main/java/org/exist/start/Main.java

@@ -65,6 +65,7 @@
 public class Main {
     public static final String STANDARD_ENABLED_JETTY_CONFIGS = "standard.enabled-jetty-configs";
     public static final String STANDALONE_ENABLED_JETTY_CONFIGS = "standalone.enabled-jetty-configs";
+    public static final String PROP_LOG4J_DISABLEJMX = "log4j2.disableJmx";
 
     private static final int ERROR_CODE_GENERAL = 1;
     private static final int ERROR_CODE_NO_JETTY_CONFIG = 7;
@@ -261,7 +262,6 @@ public void runEx(String[] args) throws StartException {
             }
 
             if (log4jConfigurationFile.isPresent() && Files.isReadable(log4jConfigurationFile.get())) {
-//                System.setProperty(PROP_LOG4J_CONFIGURATION_FILE, log4jConfigurationFile.get().toUri().toASCIIString());
                 System.setProperty(PROP_LOG4J_CONFIGURATION_FILE, log4jConfigurationFile.get().toAbsolutePath().toString());
             }
         }
@@ -271,6 +271,9 @@ public void runEx(String[] args) throws StartException {
             System.setProperty(PROP_JUL_MANAGER, Optional.ofNullable(System.getProperty(PROP_JUL_MANAGER)).orElse("org.apache.logging.log4j.jul.LogManager"));
         }
 
+        // Enable JXM support log4j since v2.24.0 [2024]
+        System.setProperty(PROP_LOG4J_DISABLEJMX, "false");
+
         // clean up tempdir for Jetty...
         try {
             final Path tmpdir = Paths.get(System.getProperty(PROP_JAVA_TEMP_DIR)).toAbsolutePath();