import jnius on Centos7/python 3.4: AttributeError: 'str' object has no attribute 'decode'

[rhoerbe]

import jnius
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/PVZDpolman/dependent_pkg/kivy/pyjnius/jnius/__init__.py", line 13, in <module>
    from .reflect import *
  File "/opt/PVZDpolman/dependent_pkg/kivy/pyjnius/jnius/reflect.py", line 14, in <module>
    class Class(with_metaclass(MetaJavaClass, JavaClass)):
  File "/usr/lib/python3.4/site-packages/six.py", line 808, in __new__
    return meta(name, bases, d)
  File "jnius/jnius_export_class.pxi", line 43, in jnius.MetaJavaClass.__new__ (jnius/jnius.c:17181)
    meta.resolve_class(classDict)
  File "jnius/jnius_export_class.pxi", line 65, in jnius.MetaJavaClass.resolve_class (jnius/jnius.c:17568)
    cdef JNIEnv *j_env = get_jnienv()
  File "jnius/jnius_env.pxi", line 11, in jnius.get_jnienv (jnius/jnius.c:3474)
    default_env = get_platform_jnienv()
  File "jnius/jnius_jvm_dlopen.pxi", line 86, in jnius.get_platform_jnienv (jnius/jnius.c:3405)
    create_jnienv()
  File "jnius/jnius_jvm_dlopen.pxi", line 49, in jnius.create_jnienv (jnius/jnius.c:2864)
    lib_path = str_for_c(os.path.join(JAVA_HOME, JNIUS_LIB_SUFFIX.decode("utf-8")))
AttributeError: 'str' object has no attribute 'decode'

To reproduce this either build the docker file in https://github.com/rhoerbe/docker-test-jnius-centos.git, or on a system with docker installed just run:

docker run -it rhoerbe/docker-test-jnius-centos7 bash