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1 /*
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2 * Copyright 2002-2003 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 javax.swing.*;
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29
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30 import sun.jvm.hotspot.runtime.*;
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31
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32 /** Shows values of Java command line flags */
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33
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34 public class VMFlagsPanel extends JPanel {
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35 private JEditorPane flagsPane;
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36
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37 public VMFlagsPanel() {
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38 initUI();
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39 }
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40
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41 private void initUI() {
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42 setLayout(new BorderLayout());
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43 flagsPane = new JEditorPane();
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44 flagsPane.setContentType("text/html");
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45 flagsPane.setEditable(false);
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46 flagsPane.setText(getFlags());
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47
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48 add(new JScrollPane(flagsPane), BorderLayout.CENTER);
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49 }
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50
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51 private String getFlags() {
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52 VM.Flag[] flags = VM.getVM().getCommandLineFlags();
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53 StringBuffer buf = new StringBuffer();
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54 buf.append("<html><head><title>VM Command Line Flags</title></head><body>");
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55 if (flags == null) {
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56 buf.append("<b>Command Flag info not available (use 1.4.1_03 or later)!</b>");
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57 } else {
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58 buf.append("<table border='1'>");
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59 for (int f = 0; f < flags.length; f++) {
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60 buf.append("<tr><td>");
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61 buf.append(flags[f].getName());
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62 buf.append("</td><td>");
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63 buf.append(flags[f].getValue());
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64 buf.append("</td>");
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65 }
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66 buf.append("</table>");
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67 }
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68
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69 buf.append("</body></html>");
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70 return buf.toString();
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71 }
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72 }
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