Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-4030482

JDK 1.1 Java debugger caused Java VM crashed with an access violation

    XMLWordPrintable

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P2
    • Resolution: Cannot Reproduce
    • Affects Version/s: 1.1
    • Fix Version/s: None
    • Component/s: tools
    • Subcomponent:
    • CPU:
      x86
    • OS:
      windows_nt

      Description

      This "jdb craches JVM" bug is reported by our ISV, NetDynamics, Inc.

      It only happen under NT (no test have done under Solaris yet)

      To reproduce the problem for JDK 1.1, just write a simple application that
      display a frame when a button was hit. Place a breakpoint (with jdb) on the
      event handler (1.0.2 event style) for the button and the JVM that was running
      the application crashed with an access violation. (see the attachement for
      the test case)

      Some background here:
      NetDynamics is trying to use the sun.tools.debug package to interface with the JDK debugger. They are writing a GUI debugger using this interface to debug Java
      applications. They claims interface works fine, it seems the bugs lie in the JVM itself. Under JDK 1.1 the debugger doesn't work at all. They have mentioned some bugs they found in JDK 1.02:
       - No support for local variables that aren't scalar or array's
       - No support for stepping out (i.e. run until the current function exits)
       - Crashes in the JVM when stepping out of scope of a function

      Since the 1.1 debugger crashes at such an early stage, they can't confirm if
      above bugs are still existing at JDK1.1.

      Dave Brewster suggested that if we could get them a quick patch for the jdb 1.1
      bug, then they can test the rest. Feel free to call Dave if you need any other
      info -- 415.462.7633

        Attachments

          Activity

            People

            Assignee:
            mr Mark Reinhold
            Reporter:
            duke J. Duke (Inactive)
            Votes:
            0 Vote for this issue
            Watchers:
            0 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:
              Imported:
              Indexed: