Fix java discovery test failure (#24424)

Author: yufengwangca

.github/workflows/tests.yaml

@@ -463,8 +463,6 @@ jobs:
                       build \
                    "
             - name: Run Discover Tests
-              # temporarily disable the failing test, would re-enable it later
-              if: false
               timeout-minutes: 10
               run: |
                   scripts/run_in_build_env.sh \

examples/java-matter-controller/java/src/com/matter/controller/commands/discover/DiscoverCommissionablesCommand.java

@@ -58,7 +58,8 @@ private final void getDiscoveredDevice() {
   }
 
   private final void logDevice(DiscoveredDevice device) {
-    System.out.format("\tDiscriminator: %ld", device.discriminator);
-    System.out.format("\tIP Address : %s", device.ipAddress);
+    System.out.println("Discovered node:");
+    System.out.format("\tDiscriminator: %d", device.discriminator);
+    System.out.format("\tIP Address : %s%n", device.ipAddress);
   }
 }