Motivation:
2 years ago a change remove the default clearing of all HttpData, whatever
they are disk based or memory based.
A lot of users were probably releasing HttpData directly, so there was no issue.
But now, it seems, and as the Javadoc said, that `decoder.destroy()` shall clean up
also Memory based HttpData, and not only Disk based HttpData as currently.
Change:
- Add in `destroy()` method the necessary code to release if necessary
the underlying Memory based HttpDatas.
- Change one Junit Test (using Mixed, Memory and Disk based factories)
in order to check the correctness of this behavior and to really act
as a handler (releasing buffers or requests).
- Modify one Junit core to check validity when a delimiter is present in the Chunk
but not CRLF/LF (false delimiter), to ensure correctness.
Result:
No more issue on memory leak
Note that still the List and the Map are not cleaned, since they were not
before. No change is done on this, since it could produce backward issue compatibility.
Fix issues #11175 and #11184
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