jpype 1.4.1 on arm platform, coredump when calling byte[] clone method

[burnup1900]

import jpype

def test_coredump():
    start_jvm() # write it by youself
    ByteArray = jpype.JArray(jpype.JByte)
    bytes = ByteArray(b"python_string")
    bytes.clone() # coredump

if __name__ == '__main__':
    test_coredump()

[burnup1900]

@Thrameos

[Thrameos]

This is odd. I could not replicate on my PC. There was a bug in 1.3 with arrays but that was corrected. The bug also makes not sense as once the byte array is in Java calling clone is just reflection call and it should in no way be connected to "python_string" as the memory would already be transferred. This case is certainly part of our testbench.

I would need a lot more information to make progress. The backtrack on the core dump and the Python version that you are using at minimum.

[burnup1900]

This is odd. I could not replicate on my PC. There was a bug in 1.3 with arrays but that was corrected. The bug also makes not sense as once the byte array is in Java calling clone is just reflection call and it should in no way be connected to "python_string" as the memory would already be transferred. This case is certainly part of our testbench.

I would need a lot more information to make progress. The backtrack on the core dump and the Python version that you are using at minimum.

Python 3.9.11, openjdk 1.8.0。Are you tested on arm? x86 is ok, only coredump on arm platform

[Thrameos]

I do not currently have access to arm. Did you happen to get a trace back on the core dump. The instructions are in the devel guide.

[burnup1900]

I do not currently have access to arm. Did you happen to get a trace back on the core dump. The instructions are in the devel guide.

1.py(8):     print(1121)
1121
1.py(9):     bytes = ByteArray(b"python_string")
1.py(10):     print(1121)
1121
1.py(11):     bytes.clone() # coredump
 --- modulename: _jarray, funcname: clone
_jarray.py(125):         return _jpype.JClass("java.util.Arrays").copyOf(self, len(self))
 --- modulename: _jclass, funcname: __new__
_jclass.py(79):         if loader and isinstance(jc, str):
_jclass.py(83):         if isinstance(jc, str) and jc.endswith(">"):
_jclass.py(99):         return _jpype._getClass(jc)
 --- modulename: _jclass, funcname: _jclassPre
_jclass.py(122):     m = list(members.items())
_jclass.py(123):     for k, v in m:
_jclass.py(124):         k2 = pysafe(k)
 --- modulename: _pykeywords, funcname: pysafe
_pykeywords.py(32):     if s.startswith("__"):
_pykeywords.py(34):     if s in _KEYWORDS:
_pykeywords.py(36):     return s
_jclass.py(125):         if k2 != k:
_jclass.py(123):     for k, v in m:
_jclass.py(124):         k2 = pysafe(k)
 --- modulename: _pykeywords, funcname: pysafe
_pykeywords.py(32):     if s.startswith("__"):
_pykeywords.py(34):     if s in _KEYWORDS:
_pykeywords.py(36):     return s
_jclass.py(125):         if k2 != k:
_jclass.py(123):     for k, v in m:
_jclass.py(124):         k2 = pysafe(k)
 --- modulename: _pykeywords, funcname: pysafe
_pykeywords.py(32):     if s.startswith("__"):
_pykeywords.py(34):     if s in _KEYWORDS:

[Thrameos]

This seems like a python referencing error, given the fault was not in JPype code. Does it work for Python 3.8?

[burnup1900]

This seems like a python referencing error, given the fault was not in JPype code. Does it work for Python 3.8?

but jpype 1.2.1 is ok, just coredump in 1.4.1