Fix checkstyle problems.

Author: Aleksi Salmela

src/main/java/fi/helsinki/cs/tmc/cli/Application.java

@@ -13,6 +13,7 @@
 
 import org.apache.commons.cli.CommandLine;
 import org.apache.commons.cli.GnuParser;
+import org.apache.commons.cli.Option;
 import org.apache.commons.cli.OptionBuilder;
 import org.apache.commons.cli.Options;
 import org.apache.commons.cli.ParseException;
@@ -25,7 +26,6 @@
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
-import org.apache.commons.cli.Option;
 
 /**
  * The application class for the program.

src/main/java/fi/helsinki/cs/tmc/cli/command/HelpCommand.java

@@ -32,7 +32,6 @@ public void getOptions(Options options) {}
 
     @Override
     public void run(CliContext context, CommandLine args) {
-        Application app = context.getApp();
         this.context = context;
         this.io = context.getIo();
 
@@ -54,7 +53,7 @@ public void run(CliContext context, CommandLine args) {
             sb.append(commandString).append("\n");
         }
 
-        app.printHelp(sb.toString());
+        context.getApp().printHelp(sb.toString());
     }
 
     private String handleArgs(CommandLine args) {
@@ -72,7 +71,7 @@ private String handleArgs(CommandLine args) {
             return category;
         }
         Set<String> helpCategories = CommandFactory.getCommandCategories();
-        if(!helpCategories.contains(category)) {
+        if (!helpCategories.contains(category)) {
             io.errorln("Unknown command category \"" + category + "\".");
             return null;
         }

src/main/java/fi/helsinki/cs/tmc/cli/core/CommandAnnotationProcessor.java

@@ -65,7 +65,7 @@ private void generateSourceFile(Map<String, String> map) throws IOException {
                     //remove prefix
                     packageName = packageName.substring(COMMAND_PACKAGE_NAME.length());
                     //remove the first dot
-                    if(packageName.startsWith(".")) {
+                    if (packageName.startsWith(".")) {
                         packageName = packageName.substring(1);
                     }
                 }