In StringJoiner::toString
final int addLen = prefix.length() + suffix.length();
Looks suspicious. There is no check for overflow here. Looking at the
constructor it should have raised a OOM much earlier. Will investigate and file
a bug.
Thanks.
-- Jim
> On Jul 15, 2020, at 1:21 PM,
Hi,
I looked a bit at the allocations themselves, but first answering
questions.
On 15.07.20 15:25, David Holmes wrote:
> On 15/07/2020 10:18 pm, Jim Laskey wrote:
>> Thomas explained: That large objects are never moved (outstanding
>> issue) So, it's possible to fragment the -Xmx4g such tha
Hi,
On 15.07.20 15:35, Jim Laskey wrote:
Try this:
- You have a 4G heap.
- You allocate some stuff, say 1 byte.
- You allocate a 2G object - so there is only 2G - 1, left. Not enough space
for another 2G object.
- But you do allocate 1 byte.
- You have 1 byte, 2G and 1 byte.
- You free the ori
mpossible for the same
>>>> "repeat" call to hit an OOME in OOM3. Unless the test is being run
>>>> concurrrently in the same VM as other tests?
>>>>
>>>> Cheers,
>>>> David
>>>>
>>>>> Thanks, Roger
>>>>>
Laskey mailto:james.las...@oracle.com>>
*Subject: **RFR: JDK-8249258 java/util/StringJoiner/StringJoinerTest.java
failed due to OOM (JDK 15)*
*Date: *July 14, 2020 at 2:01:09 PM ADT
*To: *core-libs-dev mailto:core-libs-dev@openjdk.java.net>>
The test was failing on a newly added mac min
;> Cheers,
>> David
>>
>>> Thanks, Roger
>>> On 7/14/20 2:23 PM, Daniel D. Daugherty wrote:
>>>> On 7/14/20 2:09 PM, Jim Laskey wrote:
>>>>> Adding Daniel
>>>>>
>>>>>> Begin forwarded message:
>>>&g
avid
>
>> Thanks, Roger
>> On 7/14/20 2:23 PM, Daniel D. Daugherty wrote:
>>> On 7/14/20 2:09 PM, Jim Laskey wrote:
>>>> Adding Daniel
>>>>
>>>>> Begin forwarded message:
>>>>>
>>>>> *From: *Jim Lask
ers,
David
Thanks, Roger
On 7/14/20 2:23 PM, Daniel D. Daugherty wrote:
On 7/14/20 2:09 PM, Jim Laskey wrote:
Adding Daniel
Begin forwarded message:
*From: *Jim Laskey <mailto:james.las...@oracle.com>>
*Subject: **RFR: JDK-8249258
java/util/StringJoiner/StringJoinerTest.java fa
Laskey <mailto:james.las...@oracle.com>>
*Subject: **RFR: JDK-8249258
java/util/StringJoiner/StringJoinerTest.java failed due to OOM (JDK
15)*
*Date: *July 14, 2020 at 2:01:09 PM ADT
*To: *core-libs-dev <mailto:core-libs-dev@openjdk.java.net>>
The test was failing on a newly ad
On 7/14/20 2:09 PM, Jim Laskey wrote:
Adding Daniel
Begin forwarded message:
*From: *Jim Laskey <mailto:james.las...@oracle.com>>
*Subject: **RFR: JDK-8249258
java/util/StringJoiner/StringJoinerTest.java failed due to OOM (JDK 15)*
*Date: *July 14, 2020 at 2:01:09 PM ADT
*To: *core
Adding Daniel
> Begin forwarded message:
>
> From: Jim Laskey
> Subject: RFR: JDK-8249258 java/util/StringJoiner/StringJoinerTest.java failed
> due to OOM (JDK 15)
> Date: July 14, 2020 at 2:01:09 PM ADT
> To: core-libs-dev
>
> The test was failing on a newly a
The test was failing on a newly added mac mini. I've reduced the memory stress
by introducing a shared maximum sized string. I don't recommend reducing the 4G
memory requirement -- multiple new large objects are constructed in the tests
hoping to create an OOM.
JBS: https://bugs.openjdk.java.ne
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