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/*
* Copyright 2000-2012 JetBrains s.r.o.
*
* 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.
*/
import java.io.*;
import java.net.*;
class UnusedDeclBug {
public static enum Concern {
// These fields are used! Just because I don't mention them by name
// doesn't mean they aren't used!
// IDEA tells me I need: @SuppressWarnings({"UnusedDeclaration"})
LOW,
MEDIUM,
HIGH;
};
public static void main(String[] args) {
System.out.println("Concerns are:");
// Invoking Concern.values() should count as using all the fields in the
// enum.
for (Concern concern : Concern.values()) {
System.out.print("\t");
System.out.println(concern);
} // end for
}
}
class ForEachTest {
public static void main(String[] args) {
int count = 0;
for (String ignore : args) {
count++;
}
System.out.println(count);
}
}
class TryWithResourcesTest {
public static void main(String[] args) {
System.out.println(checkUrl("bad url"));
}
private static String checkUrl(String url) {
try {
URLConnection connection = new URL(url).openConnection();
try (InputStream ignored = connection.getInputStream()) {
return connection.getURL().toString();
}
}
catch (IOException e) {
return null;
}
}
}
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