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1 /*
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2 * Copyright 2002-2004 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.ui;
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26
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27 import java.awt.*;
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28 import java.util.*;
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29 import javax.swing.*;
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30
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31 import sun.jvm.hotspot.runtime.*;
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32
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33 /** Shows values of Java System properties. */
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34
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35 public class SysPropsPanel extends JPanel {
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36 private SAEditorPane flagsPane;
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37
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38 public SysPropsPanel() {
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39 initUI();
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40 }
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41
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42 private void initUI() {
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43 setLayout(new BorderLayout());
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44 flagsPane = new SAEditorPane();
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45 flagsPane.setText(getFlags());
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46
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47 add(new JScrollPane(flagsPane), BorderLayout.CENTER);
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48 }
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49
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50 private String getFlags() {
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51 final StringBuffer buf = new StringBuffer();
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52 buf.append("<html><head><title>System Properties</title></head><body>");
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53 buf.append("<table border='1'>");
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54
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55 Properties sysProps = VM.getVM().getSystemProperties();
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56 if (sysProps != null) {
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57 Enumeration keys = sysProps.keys();
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58 while (keys.hasMoreElements()) {
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59 Object key = keys.nextElement();
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60 buf.append("<tr><td>");
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61 buf.append(key.toString());
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62 buf.append("</td><td>");
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63 buf.append(sysProps.get(key).toString());
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64 buf.append("</td></tr>");
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65 }
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66 } else {
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67 buf.append("<tr><td>System Properties info not available!</td></tr>");
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68 }
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69 buf.append("</table>");
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70 buf.append("</body></html>");
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71 return buf.toString();
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72 }
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73 }
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