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  1. JDK
  2. JDK-8042134

JOptionPane bungles HTML messages

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Details

    • Bug
    • Resolution: Fixed
    • P4
    • 20
    • 8
    • client-libs
    • b22
    • x86
    • windows_7

    Description

      FULL PRODUCT VERSION :


      A DESCRIPTION OF THE PROBLEM :
      Because a plain JLabel does not do line breaks, JOptionPane splits multiline strings across multiple JLabels. This breaks HTML messages.

      In this example, line 1 of the message has correct underline formatting; but line 2 has three problems: (1) it has no underline; (2) it is split onto a third line even though \n should be insignificant whitespace in this HTML; (3) it displays the `</u>` literally:

          import javax.swing.*;
          
          class Test {
              public static void main(String... args) {
                  SwingUtilities.invokeLater(() -> {
                      JOptionPane.showMessageDialog(null, "<html><u>line 1<br>\nline\n2</u>");
                  });
              }
          }

      Workaround/fix: Use a single JLabel for HTML messages:

          JOptionPane.showMessageDialog(null, new JLabel("<html><u>line 1<br>\nline\n2</u>"));



      REPRODUCIBILITY :
      This bug can be reproduced always.

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              psadhukhan Prasanta Sadhukhan
              webbuggrp Webbug Group
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                Updated:
                Resolved: