lookup_java_object_name leaks LocalRefs

[zielmicha]

Actually manages to leak 3 references each call!

git pull https://github.com/zielmicha/pyjnius

Or patch:

diff --git a/jnius/jnius_utils.pxi b/jnius/jnius_utils.pxi
index 7d893b4..05d54f7 100644
--- a/jnius/jnius_utils.pxi
+++ b/jnius/jnius_utils.pxi
@@ -77,6 +77,9 @@ cdef bytes lookup_java_object_name(JNIEnv *j_env, jobject j_obj):
     cdef jmethodID jmeth = j_env[0].GetMethodID(j_env, jcls2, 'getName', '()Ljava/lang/String;')
     cdef jobject js = j_env[0].CallObjectMethod(j_env, jcls, jmeth)
     name = convert_jobject_to_python(j_env, b'Ljava/lang/String;', js)
+    j_env[0].DeleteLocalRef(j_env, js)
+    j_env[0].DeleteLocalRef(j_env, jcls)
+    j_env[0].DeleteLocalRef(j_env, jcls2)
     return name.replace('.', '/')

[tito]

oh wha, could you make a PR from your main branch?

[tito]

ok, patch merged from your PR