FolderTest

Signed-off-by: Jorge Bescos Gascon <[email protected]>

api/src/main/java/jakarta/mail/Folder.java

@@ -32,7 +32,6 @@
 import java.util.List;
 import java.util.Vector;
 import java.util.concurrent.Executor;
-import java.util.concurrent.atomic.AtomicBoolean;
 
 /**
  * Folder is an abstract class that represents a folder for mail

api/src/test/java/jakarta/mail/FolderTest.java

@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 2024 Oracle and/or its affiliates. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0, which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * This Source Code may also be made available under the following Secondary
+ * Licenses when the conditions for such availability set forth in the
+ * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
+ * version 2 with the GNU Classpath Exception, which is available at
+ * https://www.gnu.org/software/classpath/license.html.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+ */
+
+package jakarta.mail;
+
+import java.util.Properties;
+
+import org.junit.Test;
+
+public class FolderTest {
+
+    @Test
+    public void closeIdempotent() throws MessagingException {
+        CustomFolder folder = new CustomFolder(new DummyStore(Session.getDefaultInstance(new Properties()), null));
+        folder.close();
+        folder.close();
+    }
+
+    @Test
+    public void closeFalse() throws MessagingException {
+        try (Folder folder = new CustomFolder(new DummyStore(Session.getDefaultInstance(new Properties()), null))) {
+            folder.close(false);
+        }
+    }
+
+    private static class CustomFolder extends Folder {
+
+        private boolean closed;
+
+        protected CustomFolder(Store store) {
+            super(store);
+        }
+
+        @Override
+        public String getName() {
+            return null;
+        }
+
+        @Override
+        public String getFullName() {
+            return null;
+        }
+
+        @Override
+        public Folder getParent() throws MessagingException {
+            return null;
+        }
+
+        @Override
+        public boolean exists() throws MessagingException {
+            return false;
+        }
+
+        @Override
+        public Folder[] list(String pattern) throws MessagingException {
+            return null;
+        }
+
+        @Override
+        public char getSeparator() throws MessagingException {
+            return 0;
+        }
+
+        @Override
+        public int getType() throws MessagingException {
+            return 0;
+        }
+
+        @Override
+        public boolean create(int type) throws MessagingException {
+            return false;
+        }
+
+        @Override
+        public boolean hasNewMessages() throws MessagingException {
+            return false;
+        }
+
+        @Override
+        public Folder getFolder(String name) throws MessagingException {
+            return null;
+        }
+
+        @Override
+        public boolean delete(boolean recurse) throws MessagingException {
+            return false;
+        }
+
+        @Override
+        public boolean renameTo(Folder f) throws MessagingException {
+            return false;
+        }
+
+        @Override
+        public void open(int mode) throws MessagingException {
+        }
+
+        @Override
+        public void close(boolean expunge) throws MessagingException {
+            if (closed) {
+                throw new IllegalStateException("Already closed");
+            }
+            closed = true;
+        }
+
+        @Override
+        public boolean isOpen() {
+            return !closed;
+        }
+
+        @Override
+        public Flags getPermanentFlags() {
+            return null;
+        }
+
+        @Override
+        public int getMessageCount() throws MessagingException {
+            return 0;
+        }
+
+        @Override
+        public Message getMessage(int msgnum) throws MessagingException {
+            return null;
+        }
+
+        @Override
+        public void appendMessages(Message[] msgs) throws MessagingException {
+        }
+
+        @Override
+        public Message[] expunge() throws MessagingException {
+            return null;
+        }
+    }
+
+    private static class DummyStore extends Store {
+
+        protected DummyStore(Session session, URLName urlname) {
+            super(session, urlname);
+        }
+
+        @Override
+        public Folder getDefaultFolder() throws MessagingException {
+            return null;
+        }
+
+        @Override
+        public Folder getFolder(String name) throws MessagingException {
+            return null;
+        }
+
+        @Override
+        public Folder getFolder(URLName url) throws MessagingException {
+            return null;
+        }
+    }
+}