RFR: JDK-8208468: [TESTBUG] nsk/jdb/locals/locals002: fails with "Prompt is not received during ... milliseconds"

[Chris Plummer]

 From what I can see, jdb.stdout, jdb.session, and the .jtr file all 
contain both the jdb output and the debuggee output. I didn't find a 
file that contained just the debuggee output. Have you noticed differently?

Chris


On 9/12/18 1:51 PM, Alex Menkov wrote:
> +1 for the fix as a temporary workaround.
> Actually that's look a bit strange as debuggee output is redirected.
> So I'd expected it does not go through jdb log, and it should appear 
> in the test log with "debuggee.stdout>" prefix.
>
> -alex
>
> On 09/12/2018 12:35, Chris Plummer wrote:
>> Looks good. I filed JDK-8210668 to address to root issue.
>>
>> Chris
>>
>> On 9/12/18 7:27 AM, Gary Adams wrote:
>>> The print statements in the locals002 test have been observed to 
>>> interfere
>>> with the output from commands, replies and prompts used in the 
>>> synchronization
>>> of operations between the debugger and debuggee. This change will 
>>> remove the
>>> print statements. A follow up bug will be filed for longer term 
>>> investigation of the
>>> character at a time output which leaves a larger window for the 
>>> output interruption
>>> that occurs.
>>>
>>>   Issue: https://bugs.openjdk.java.net/browse/JDK-8208468
>>>
>>> Proposed update:
>>>
>>> diff --git 
>>> a/test/hotspot/jtreg/vmTestbase/nsk/jdb/locals/locals002/locals002a.java 
>>> b/test/hotspot/jtreg/vmTestbase/nsk/jdb/locals/locals002/locals002a.java 
>>>
>>> --- 
>>> a/test/hotspot/jtreg/vmTestbase/nsk/jdb/locals/locals002/locals002a.java 
>>>
>>> +++ 
>>> b/test/hotspot/jtreg/vmTestbase/nsk/jdb/locals/locals002/locals002a.java 
>>>
>>> @@ -81,7 +81,7 @@
>>>         int[]   arrVar
>>>                                )
>>>     {
>>> -       System.out.println("Arguments but no locals"); // 
>>> locals002.BREAKPOINT_LINE1
>>> +       int x = 3; // locals002.BREAKPOINT_LINE1
>>>     }
>>>
>>>     static void allKindsOfLocals()  {
>>> @@ -97,6 +97,6 @@
>>>         int[]   arrVar    = new int[5];
>>>
>>>         for (int j = 0; j < 5 ; j++) arrVar[j] = j;
>>> -       System.out.println("Locals but no arguments"); // 
>>> locals002.BREAKPOINT_LINE2
>>> +       int x = 4; // locals002.BREAKPOINT_LINE2
>>>     }
>>>  }
>>>
>>