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The MBeans plugin integrates JConsole's MBeans tab functionality into VisualVM.

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/*
 * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package org.graalvm.visualvm.modules.mbeans;

import java.awt.*;
import javax.swing.*;
import java.io.*;

class ThreadDialog implements Runnable {

    Component parentComponent;
    Object message;
    String title;
    int messageType;

    public ThreadDialog(Component parentComponent,
                        Object message,
                        String title,
                        int messageType) {
        this.parentComponent = parentComponent;
        this.message = message;
        this.title = title;
        this.messageType = messageType;
    }

    public void run() {
        JOptionPane pane = new JOptionPane(message, messageType);
        JDialog dialog = pane.createDialog(parentComponent, title);
        dialog.setResizable(true);
        dialog.setVisible(true);
    }
}