Deprecate the "--class" CLI flag

The "--run" support has been generalized now, such that continuing
to support this specialization is more trouble than it is worth.

Author: ctrueden

src/main/java/org/scijava/command/console/RunArgument.java

@@ -44,12 +44,9 @@
 import org.scijava.plugin.Plugin;
 
 /**
- * Handles the {@code --run} command line argument.
- *
- * @author Curtis Rueden
- * @author Johannes Schindelin
- * @author Mark Hiner
+ * @deprecated Use {@link org.scijava.run.console.RunArgument} instead.
  */
+@Deprecated
 @Plugin(type = ConsoleArgument.class)
 public class RunArgument extends AbstractConsoleArgument {
 
@@ -62,7 +59,7 @@ public class RunArgument extends AbstractConsoleArgument {
 	// -- Constructor --
 
 	public RunArgument() {
-		super(2, "--run", "--class");
+		super(2, "--class");
 	}
 
 	// -- ConsoleArgument methods --
@@ -72,7 +69,10 @@ public void handle(final LinkedList<String> args) {
 		if (!supports(args))
 			return;
 
-		args.removeFirst(); // --run
+		log.warn("The --class flag is deprecated, and will\n" +
+			"be removed in a future release. Use --run instead.");
+
+		args.removeFirst(); // --class
 		final String commandToRun = args.removeFirst();
 		final String paramString = ConsoleUtils.hasParam(args) ? args.removeFirst() : "";