Merge pull request #826 from Thrameos/tracebug

Fix referencing bug
jpype-project · Aug 7, 2020 · 4a48459 · 4a48459
2 parents aa31348 + f5be4cc
commit 4a48459
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diff --git a/doc/CHANGELOG.rst b/doc/CHANGELOG.rst
@@ -4,6 +4,9 @@ Changelog
 This changelog *only* contains changes from the *first* pypi release (0.5.4.3) onwards.
 
 Latest Changes:
+
+  - Fixed reference count problem in stackframes used for exceptions.
+
 - **1.0.2_dev0 - 2020-07-16**
 
   - java.util.Iterable will take a Python sequence as an implicit conversion.

diff --git a/native/common/jp_exception.cpp b/native/common/jp_exception.cpp
@@ -485,7 +485,10 @@ PyTracebackObject *tb_create(
 	PyFrameObject *frame = (PyFrameObject*) PyFrame_Type.tp_alloc(&PyFrame_Type, 0);
 	frame->f_back = NULL;
 	if (last_traceback != NULL)
+	{
 		frame->f_back = last_traceback->tb_frame;
+		Py_INCREF(frame->f_back);
+	}
 	frame->f_builtins = dict;
 	Py_INCREF(frame->f_builtins);
 	frame->f_code = (PyCodeObject*) code;