Added @Override to execute() in 10 command files via parallel edits, then checked for test targets (none found) and verified the diffs.

cli/src/commands/org/jnode/command/common/EchoCommand.java

@@ -52,6 +52,7 @@ public static void main(String[] args) throws Exception {
     /**
      * Execute the command
      */
+    @Override
     public void execute() throws Exception {
         PrintWriter out = getOutput().getPrintWriter();
         String[] words = argWords.getValues();

cli/src/commands/org/jnode/command/common/ExitCommand.java

@@ -43,6 +43,7 @@ public static void main(String[] args) throws Exception {
     /**
      * Execute this command
      */
+    @Override
     public void execute() throws Exception {
         ShellManager sm = InitialNaming.lookup(ShellManager.NAME);
         ((CommandShell) sm.getCurrentShell()).exit();

cli/src/commands/org/jnode/command/common/FalseCommand.java

@@ -42,6 +42,7 @@ public static void main(String[] args) throws Exception {
     /**
      * Execute the command
      */
+    @Override
     public void execute() throws Exception {
         exit(1);
     }

cli/src/commands/org/jnode/command/common/SleepCommand.java

@@ -48,6 +48,7 @@ public static void main(String[] args) throws Exception {
         new SleepCommand().execute(args);
     }
 
+    @Override
     public void execute() throws Exception {
         Integer seconds = argSeconds.getValue();
         if (seconds > 0) {

cli/src/commands/org/jnode/command/common/TrueCommand.java

@@ -42,6 +42,7 @@ public static void main(String[] args) throws Exception {
     /**
      * Execute the command
      */
+    @Override
     public void execute() throws Exception {
     }
 }

cli/src/commands/org/jnode/command/common/UptimeCommand.java

@@ -44,6 +44,7 @@ public UptimeCommand() {
     /**
      * @throws Exception if something happens
      */
+    @Override
     public void execute() throws Exception {
         PrintWriter out = getOutput().getPrintWriter();
         long ut_secs = VmSystem.currentKernelMillis() / 1000;

cli/src/commands/org/jnode/command/file/PwdCommand.java

@@ -39,6 +39,7 @@ public static void main(String[] args) throws Exception {
         new PwdCommand().execute(args);
     }
 
+    @Override
     public void execute() {
         File file = new File("");
         getOutput().getPrintWriter().println(file.getAbsolutePath());

cli/src/commands/org/jnode/command/system/CpuIDCommand.java

@@ -43,6 +43,7 @@ public static void main(String[] args) throws Exception {
     /**
      * Execute this command
      */
+    @Override
     public void execute() {
         final VmProcessor cpu = VmProcessor.current();
         PrintWriter out = getOutput().getPrintWriter();

cli/src/commands/org/jnode/command/system/MemoryCommand.java

@@ -47,6 +47,7 @@ public MemoryCommand() {
     /**
      * Execute this command
      */
+    @Override
     public void execute() throws Exception {
         PrintWriter out = getOutput().getPrintWriter();
         final Runtime rt = Runtime.getRuntime();

cli/src/commands/org/jnode/command/system/NamespaceCommand.java

@@ -44,6 +44,7 @@ public static void main(String[] args) throws Exception {
     /**
      * Execute this command
      */
+    @Override
     public void execute() throws Exception {
         PrintWriter out = getOutput().getPrintWriter();
         Set<Class< ? >> names = InitialNaming.nameSet();