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  1. JDK
  2. JDK-4294390

"... JIT (3.10.107(x)) error 'Verify user locks error' has occured ...

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P4
    • Resolution: Won't Fix
    • Affects Version/s: 1.2.2
    • Fix Version/s: None
    • Component/s: vm-legacy
    • Labels:
    • Subcomponent:
      jit
    • CPU:
      x86
    • OS:
      windows_nt

      Description



      Name: skT88420 Date: 11/24/99


      java version "1.2.2"
      Classic VM (build JDK-1.2.2-W, native threads, symcjit)


      1. To reproduce the problem, compile and run the code below using 'javac
      PythonPad.java' followed by 'java PythonPad'. Then, type a character. To fix
      the problem, use 'java -Djava.compiler=NONE PythonPad' instead. Or, the code
      may be modified in any number of ways that will avoid the problem. See the
      source comments that begin with '//afl' for a few examples! (The source could
      not possibly make any sense in its present state!)

      2. The source is here.

      import java.awt.*;
      import java.awt.event.*;
      //import java.io.*;
      import javax.swing.*;
      import javax.swing.event.*;
      import javax.swing.text.*;
      import java.util.*;
      public class PythonPad extends JPanel {
      private static HashSet pythonKeywords=new HashSet();
      static {
      pythonKeywords.add("and");
      pythonKeywords.add("del");
      pythonKeywords.add("for");
      pythonKeywords.add("is");
      pythonKeywords.add("raise");
      pythonKeywords.add("assert");
      pythonKeywords.add("elif");
      pythonKeywords.add("from");
      pythonKeywords.add("lambda");
      pythonKeywords.add("return");
      pythonKeywords.add("break");
      pythonKeywords.add("else");
      pythonKeywords.add("global");
      pythonKeywords.add("not");
      pythonKeywords.add("try");
      pythonKeywords.add("class");
      pythonKeywords.add("except");
      pythonKeywords.add("if");
      pythonKeywords.add("or");
      pythonKeywords.add("while");
      pythonKeywords.add("continue");
      pythonKeywords.add("exec");
      pythonKeywords.add("import");
      pythonKeywords.add("pass");
      pythonKeywords.add("def");
      pythonKeywords.add("finally");
      pythonKeywords.add("in");
      pythonKeywords.add("print");
      }

      protected static final class AppCloser extends WindowAdapter {
      public void windowClosing(WindowEvent e) {
      System.exit(0);
      }
      }
      public static void main(String[] args) {
      JFrame frame = new JFrame();
      frame.setBackground(Color.lightGray);
      frame.getContentPane().setLayout(new BorderLayout());

      frame.getContentPane().add("Center", new PythonPad());

      frame.addWindowListener(new AppCloser());
      frame.pack();
      frame.setSize(600, 480);
      frame.show();
      }

      public PythonPad() {
      super(true);

      setBorder(BorderFactory.createEtchedBorder());
      setLayout(new BorderLayout());

      editor = createEditor();
      editor.setFont(new Font("monospaced", Font.PLAIN, 12));

      JScrollPane scroller = new JScrollPane();
      JViewport port = scroller.getViewport();
      port.add(editor);

      JPanel panel = new JPanel();
      panel.setLayout(new BorderLayout());
      panel.add("Center", scroller);
      add("Center", panel);
      }

      /**
      * Create an editor to represent the given document.
      */
      protected JTextComponent createEditor() {
      StyleContext sc = new StyleContext();
      DefaultStyledDocument doc = new DefaultStyledDocument(sc);
      doc.addDocumentListener(new MyDocumentListener());
      JTextPane p = new JTextPane(doc);

      return p;
      }

      protected JTextComponent getEditor() {
      return editor;
      }

      // Highlight the Python keywords

      private int processed;
      private void processChild(Element elem) {
      int i;
      DefaultStyledDocument doc=null;
      StringTokenizer theTokens=null;
      if(elem.isLeaf()) {
      int start=elem.getParentElement().getStartOffset();
      try {
      theTokens=new StringTokenizer(elem.getDocument
      ().getText(elem.getParentElement().getStartOffset(),elem.getParentElement
      ().getEndOffset()-elem.getParentElement().getStartOffset())," \t\n\r\f",true);
      }
      catch (BadLocationException ble) {
      System.out.println("What do we do now?");
      }
      SimpleAttributeSet attrs=new SimpleAttributeSet();
      String theToken="";
      String thePreceding="";
      int setBold=0,iSet=0;
      int indent=4;
      int indentMod=0;
      indentMod=2*indent;
      while(theTokens.hasMoreTokens()) {
      theToken=theTokens.nextToken();
      if(theToken.equals("xxxx")) {
      setBold++;
      }
      else {
      //afl Comment the following line
      StyleConstants.setItalic(attrs,false);
      //afl Avoid the '%' operator by using the line following this one:
      if(setBold%indentMod==indent) {
      // if((setBold-(setBold/indentMod)
      *indentMod)==indent) {
      }
      else {
      iSet=setBold%indentMod;
      //afl Uncomment the following line
      // iSet=setBold-(setBold/indentMod)
      *indentMod;
      if(iSet==0) {
      StyleConstants.setBold
      (attrs,false);
      }
      else {
      }
      }
      }
      start=start+theToken.length();
      }
      processed=start;
      }
      else { // !elem.isLeaf()
      if(elem.getElementCount()>0) {
      while(elem.getEndOffset()>processed) {
      processChild(elem.getElement
      (elem.getElementIndex(processed)));
      }
      }
      }
      }

      class UpdateTextColors extends Thread {
      int offset;
      int length;
      public UpdateTextColors(int offset, int length) {
      this.offset=offset;
      this.length=length;
      }
      public void run() {
      processed=offset;
      while(processed<offset+length) {
      processChild(getEditor().getDocument
      ().getRootElements()[0].getElement(getEditor().getDocument().getRootElements()
      [0].getElementIndex(processed)));
      }
      }
      }
      class MyDocumentListener implements DocumentListener {
      public void changedUpdate(DocumentEvent e) {
      }
      public void insertUpdate(DocumentEvent e) {
      int offset=e.getOffset();
      int length=e.getLength();
      DefaultStyledDocument doc=(DefaultStyledDocument)
      e.getDocument();
      Element root=doc.getDefaultRootElement();
      int index=root.getElementIndex(offset);
      Element elem=root.getElement(index);
      DocumentEvent.EventType type=e.getType();
      if(type==DocumentEvent.EventType.INSERT) {
      length=getEditor().getDocument().getRootElements
      ()[0].getElement(getEditor().getDocument().getRootElements()[0].getElementIndex
      (offset+length)).getEndOffset()
      -getEditor().getDocument
      ().getRootElements()[0].getElement(getEditor().getDocument().getRootElements()
      [0].getElementIndex(offset)).getStartOffset();
      offset=getEditor().getDocument().getRootElements
      ()[0].getElement(getEditor().getDocument().getRootElements()[0].getElementIndex
      (offset)).getStartOffset();
      UpdateTextColors u=new UpdateTextColors
      (offset,length);
      SwingUtilities.invokeLater(u);
      }
      }
      public void removeUpdate(DocumentEvent e) {
      }
      }
      private JTextComponent editor;

      } // PythonPad

      3. The error that appears is:
      "A nonfatal internal JIT (3.10.107(x)) error 'Verify user locks error' has
      occurred in : 'PythonPad.processChild (Ljavax/swing/text/Element;)V':
      Interpreting method. Please report this error in detail to
      http://java.sun.com/cgi-bin/bugreport.cgi"

      4. n/a

      5. n/a
      (Review ID: 98245)
      ======================================================================

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            • Assignee:
              Unassigned
              Reporter:
              skonchad Sandeep Konchady
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              • Created:
                Updated:
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