Name: dkR10014 Date: 04/04/2002


The following testbase_nsk test:
   nsk/jdb/pop/pop001
fails on all platforms (Solsparc, Solx86, Win, Linux) in all debugged VM mode.

There are two files in the test:
  pop001.java - launches jdb and debuggee, writes commands to jdb, reads the jdb
output,
  pop001a.java - the debugged application.

The test checks jdb's 'pop' command and works as follows.
The debugged application (pop001a.java) starts additional thread of MyThread
class. The 'run()' method of the this class invokes recursively a number of
int methods. The jdb sets breakpoint in the last called 'func5()' method
to stop the debugged VM when all the methods, i.e. from 'func1()' to
'func5()', are in MyThread's stack. Then jdb steps up three frame on the stack
by 'up 3' command. At this moment frame with 'func2()' is current.
Then the 'pop' command is called. The test passes if after 'pop' command
the 'func1()' frame becomes current and jdb correctly reports the thread stack
and local variable(s) of the current frame.

But the jdb prompt shows that after 'pop' command pointer to current thread
frame is not
updated. This leads to erroneus result for subsequent 'where' and 'locals'
commands:
...
MyThread[4] pop
MyThread[4] where
MyThread[4] locals
Internal exception:
MyThread[4]
...

The following error message is printed in jdb stderr stream:
java.lang.IndexOutOfBoundsException
at
com.sun.tools.jdi.ThreadReferenceImpl.isSubrange(ThreadReferenceImpl.java:294)
at
com.sun.tools.jdi.ThreadReferenceImpl.privateFrames(ThreadReferenceImpl.java:323
)
at
com.sun.tools.jdi.ThreadReferenceImpl.frame(ThreadReferenceImpl.java:276)
at
com.sun.tools.example.debug.tty.ThreadInfo.getCurrentFrame(ThreadInfo.java:233)
at
com.sun.tools.example.debug.tty.Commands.commandLocals(Commands.java:1424)
at com.sun.tools.example.debug.tty.TTY.executeCommand(TTY.java:247)
at com.sun.tools.example.debug.tty.TTY.<init>(TTY.java:539)
at com.sun.tools.example.debug.tty.TTY.main(TTY.java:830)

Test error message:
# ERROR: Contents of stack trace is incorrect after 'pop' command
# ERROR: Searched for: nsk.jdb.pop.MyThread.func1
# ERROR: Count : 0
# ERROR: Internal exception was thrown while 'locals' command
# ERROR: Internal exception:
# ERROR: MyThread[4]
# ERROR: TEST FAILED

Below is test jdb stdout log redirected to jdb.stdout file:
------------------------------------------------------------------
Initializing jdb ...
>
<<COMMAND>>stop in nsk.jdb.pop.pop001a.main

Deferring breakpoint nsk.jdb.pop.pop001a.main.
It will be set after the class is loaded.
>
<<COMMAND>>run

run nsk.jdb.pop.pop001a
>
VM Started: Set deferred breakpoint nsk.jdb.pop.pop001a.main

Breakpoint hit: "thread=main", nsk.jdb.pop.pop001a.main(), line=21 bci=0

main[1]
<<COMMAND>>stop in nsk.jdb.pop.pop001a.lastBreak

Set breakpoint nsk.jdb.pop.pop001a.lastBreak
main[1]
<<COMMAND>>cont

> run() started
func1() started
func2() started
func3() started
func4() started
func5() started

Breakpoint hit: "thread=MyThread", nsk.jdb.pop.pop001a.lastBreak(), line=24
bci=0

MyThread[1]
<<COMMAND>>threads

Group system:
  (java.lang.ref.Reference$ReferenceHandler)0x105 Reference Handler cond.
waiting
  (java.lang.ref.Finalizer$FinalizerThread)0x104 Finalizer cond.
waiting
  (java.lang.Thread)0x103 Signal Dispatcher running
Group main:
  (java.lang.Thread)0x1 main cond.
waiting
  (java.util.logging.LogManager$Cleaner)0x151 Thread-0 unknown
  (nsk.share.Finalizer$FinalizerThread)0x152 Thread-1 unknown
  (nsk.jdb.pop.MyThread)0x14e MyThread running (at
breakpoint)
MyThread[1]
<<COMMAND>>thread 0x14e

MyThread[1]
<<COMMAND>>step

>
Step completed: "thread=MyThread", nsk.jdb.pop.MyThread.func5(), line=93 bci=14

MyThread[1]
<<COMMAND>>where

  [1] nsk.jdb.pop.MyThread.func5 (pop001a.java:93)
  [2] nsk.jdb.pop.MyThread.func4 (pop001a.java:85)
  [3] nsk.jdb.pop.MyThread.func3 (pop001a.java:78)
  [4] nsk.jdb.pop.MyThread.func2 (pop001a.java:71)
  [5] nsk.jdb.pop.MyThread.func1 (pop001a.java:64)
  [6] nsk.jdb.pop.MyThread.run (pop001a.java:56)
MyThread[1]
<<COMMAND>>up 3

MyThread[4]
<<COMMAND>>where

  [4] nsk.jdb.pop.MyThread.func2 (pop001a.java:71)
  [5] nsk.jdb.pop.MyThread.func1 (pop001a.java:64)
  [6] nsk.jdb.pop.MyThread.run (pop001a.java:56)
MyThread[4]
<<COMMAND>>pop

MyThread[4]
<<COMMAND>>where

MyThread[4]
<<COMMAND>>locals

Internal exception:
MyThread[4]
<<COMMAND>>cont

func2() started
func3() started
func4() started
func5() started
>
Breakpoint hit: "thread=MyThread", nsk.jdb.pop.pop001a.lastBreak(), line=24
bci=0

MyThread[1]
<<COMMAND>>cont

> run() finished

The application exited
------------------------------------------------------------------
<<COMMAND>> prefix designates input commands.
   
How to reproduce:
 1. cd /net/sqesvr.sfbay/export/vsn/GammaBase/Bugs/{this_bug_number}
 2. sh doit.sh <JAVA_HOME>

The test will appear in the next testbase_nsk r13 relase.

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