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  1. JDK
  2. JDK-6359309

Large setting for -Xmx param prevents plugin from starting in Internet Explorer

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P3
    • Resolution: Duplicate
    • Affects Version/s: 1.4.2_09, 5.0
    • Fix Version/s: None
    • Component/s: deploy
    • Labels:
    • Subcomponent:
    • CPU:
      x86
    • OS:
      windows_2003, windows_xp

      Description

      FULL PRODUCT VERSION :
      java version "1.5.0_05"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_05-b05)
      Java HotSpot(TM) Client VM (build 1.5.0_05-b05, mixed mode, sharing)


      ADDITIONAL OS VERSION INFORMATION :
      Microsoft Windows [Version 5.2.3790]

      EXTRA RELEVANT SYSTEM CONFIGURATION :
      2.0GHz Pentium M processor
      1GB physical memory
      Internet Explorer 6.0.3790.1830

      A DESCRIPTION OF THE PROBLEM :
      When Java Plugin is configured with -Xmx parameter set to some number larger than half of the system's physical memory, java plugin will not start in Internet Explorer. It pops up a message box that says "The Java Runtime Environment cannot be loaded". On my machine, -Xmx750m does the trick. The problem seems to be independent of the version of Windows operating system. It's also reproducible on Windows 2000 and XP. It happens with both the <APPLET> tag and with the <OBJECT> tag.

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      Open Java 1.5 control panel and switch to Java tab. Open "Java Applet Runtime Settings" by clicking on "View" button. In the last field (Java Runtime Parameters) enter "-Xmx512m", where "512" should be replaced by 3/4 of the system physical memory size. Also enable "<APPLET> tag support" for Internet Explorer. Apply settings. Open internet explorer and navigate to any web page that contains an applet.

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      Applet runs and its user interface is visible.
      ACTUAL -
      The place where the Applet would be on the HTML page is blank with a little icon in top left corner, which represents missing control. An error message dialog is displayed by Java Plugin.

      ERROR MESSAGES/STACK TRACES THAT OCCUR :
      Error message box has the title "Java(TM) Plug-in Fatal Error", and the message is "The Java Runtime Environment cannot be loaded".

      REPRODUCIBILITY :
      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------
      HTML page that calls up the applet.

      -------------------------------------------------

      <HTML>
      <HEAD>
      <TITLE>
      Test Applet
      </TITLE>
      </HEAD>
      <BODY>
      <APPLET width=400 height=250>
      <PARAM NAME="codebase" VALUE=".">
      <PARAM NAME="code" VALUE="testapplet.TestApplet.class">
      <PARAM NAME="name" VALUE="Test Applet">
      </APPLET>
      </BODY>
      </HTML>

      -------------------------------------------------

      Even though the actual TestApplet.class doesn' t have to be available to see the problem, below is java code for this Applet.

      -------------------------------------------------

      package testapplet;

      import java.applet.Applet;
      import javax.swing.JLabel;

      public class TestApplet extends Applet {
          public TestApplet() {
              add(new JLabel("Applet's Running"));
          }
      }

      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      Maximum possible value for -Xmx must be determined by trial and error for each individual machine.

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              • Assignee:
                mafishersunw Margarita Fisher (Inactive)
                Reporter:
                gmanwanisunw Girish Manwani (Inactive)
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                Dates

                • Created:
                  Updated:
                  Resolved:
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