Move newOption method to a new public class

Change-Id: Ieac80706db729dee16bfde46e3b9f44ab7ac3006

java/com/google/gerrit/util/cli/CmdLineParser.java

@@ -38,7 +38,6 @@ import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.gerrit.util.cli.Localizable.localizable;
 import static java.util.Objects.requireNonNull;
 
-import com.google.auto.value.AutoAnnotation;
 import com.google.common.base.Strings;
 import com.google.common.collect.ListMultimap;
 import com.google.common.collect.Lists;
@@ -424,7 +423,7 @@ public class CmdLineParser {
     requireNonNull(prefix);
     checkArgument(o.name().startsWith("-"), "Option name must start with '-': %s", o);
     String[] aliases = Arrays.stream(o.aliases()).map(prefix::concat).toArray(String[]::new);
-    return newOption(
+    return OptionUtil.newOption(
         prefix + o.name(),
         aliases,
         o.usage(),
@@ -437,22 +436,6 @@ public class CmdLineParser {
         new String[0]);
   }
 
-  @AutoAnnotation
-  private static Option newOption(
-      String name,
-      String[] aliases,
-      String usage,
-      String metaVar,
-      boolean required,
-      boolean help,
-      boolean hidden,
-      Class<? extends OptionHandler> handler,
-      String[] depends,
-      String[] forbids) {
-    return new AutoAnnotation_CmdLineParser_newOption(
-        name, aliases, usage, metaVar, required, help, hidden, handler, depends, forbids);
-  }
-
   public class MyParser extends org.kohsuke.args4j.CmdLineParser {
     boolean help;
 
@@ -640,7 +623,7 @@ public class CmdLineParser {
     }
 
     private Option newHelpOption() {
-      return newOption(
+      return OptionUtil.newOption(
           "--help",
           new String[] {"-h"},
           "display this help text",

java/com/google/gerrit/util/cli/OptionUtil.java

@@ -0,0 +1,39 @@
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.util.cli;
+
+import com.google.auto.value.AutoAnnotation;
+import org.kohsuke.args4j.Option;
+import org.kohsuke.args4j.spi.OptionHandler;
+
+/** Utilities to support creating new {@link Option} instances. */
+public class OptionUtil {
+  @AutoAnnotation
+  @SuppressWarnings("rawtypes")
+  public static Option newOption(
+      String name,
+      String[] aliases,
+      String usage,
+      String metaVar,
+      boolean required,
+      boolean help,
+      boolean hidden,
+      Class<? extends OptionHandler> handler,
+      String[] depends,
+      String[] forbids) {
+    return new AutoAnnotation_OptionUtil_newOption(
+        name, aliases, usage, metaVar, required, help, hidden, handler, depends, forbids);
+  }
+}