diff --git a/jnius/jnius_conversion.pxi b/jnius/jnius_conversion.pxi
index 6ac3d8c..8fe596c 100644
--- a/jnius/jnius_conversion.pxi
+++ b/jnius/jnius_conversion.pxi
@@ -145,8 +145,15 @@ cdef convert_jobject_to_python(JNIEnv *j_env, bytes definition, jobject j_object
         return convert_jarray_to_python(j_env, r[1:], j_object)
 
     if r not in jclass_register:
-        from reflect import autoclass
-        ret_jc = autoclass(r.replace('/', '.'))(noinstance=True)
+        if r.startswith('$Proxy'):
+            # only for $Proxy on android, don't use autoclass. The dalvik vm is
+            # not able to give us introspection on that one (FindClass return
+            # NULL).
+            from .reflect import Object
+            ret_jc = Object(noinstance=True)
+        else:
+            from reflect import autoclass
+            ret_jc = autoclass(r.replace('/', '.'))(noinstance=True)
     else:
         ret_jc = jclass_register[r](noinstance=True)
     ret_jc.instanciate_from(create_local_ref(j_env, j_object))
@@ -339,7 +346,7 @@ cdef jobject convert_python_to_jobject(JNIEnv *j_env, definition, obj) except *:
     elif definition == 'I':
         retclass = j_env[0].FindClass(j_env, 'java/lang/Integer')
         retmidinit = j_env[0].GetMethodID(j_env, retclass, '<init>', '(I)V')
-        j_ret[0].i = obj
+        j_ret[0].i = int(obj)
     elif definition == 'J':
         retclass = j_env[0].FindClass(j_env, 'java/lang/Long')
         retmidinit = j_env[0].GetMethodID(j_env, retclass, '<init>', '(J)V')
diff --git a/jnius/jnius_jvm_desktop.pxi b/jnius/jnius_jvm_desktop.pxi
index b8aed0e..58258bc 100644
--- a/jnius/jnius_jvm_desktop.pxi
+++ b/jnius/jnius_jvm_desktop.pxi
@@ -27,7 +27,7 @@ def classpath():
     else:
         split_char = ':'
 
-    paths = [realpath('.'), join(dirname(__file__), 'src', 'org'), ]
+    paths = [realpath('.'), join(dirname(__file__), 'src'), ]
     if 'CLASSPATH' not in environ:
         return split_char.join(paths)
 
diff --git a/jnius/jnius_proxy.pxi b/jnius/jnius_proxy.pxi
index 2669e04..f4cd1da 100644
--- a/jnius/jnius_proxy.pxi
+++ b/jnius/jnius_proxy.pxi
@@ -61,18 +61,18 @@ cdef class PythonJavaClass(object):
 
         py_method = self.__javamethods__.get(key, None)
         if not py_method:
-            print(''.join(
+            print(''.join([
                 '\n===== Python/java method missing ======',
-                '\nPython class:', self,
+                '\nPython class:', repr(self),
                 '\nJava method name:', method_name,
                 '\nSignature: ({}){}'.format(''.join(args_signature), ret_signature),
-                '\n=======================================\n'))
+                '\n=======================================\n']))
             raise NotImplemented('The method {} is not implemented'.format(key))
 
         return py_method(*args)
 
 cdef jobject invoke0(JNIEnv *j_env, jobject j_this, jobject j_proxy, jobject
-        j_method, jobjectArray args) except *:
+        j_method, jobjectArray args) with gil:
     from .reflect import get_signature, Method
 
     # get the python object
@@ -142,7 +142,7 @@ cdef jobject invoke0(JNIEnv *j_env, jobject j_this, jobject j_proxy, jobject
 cdef create_proxy_instance(JNIEnv *j_env, py_obj, j_interfaces):
     from .reflect import autoclass
     Proxy = autoclass('java.lang.reflect.Proxy')
-    NativeInvocationHandler = autoclass('jnius.NativeInvocationHandler')
+    NativeInvocationHandler = autoclass('org.jnius.NativeInvocationHandler')
     ClassLoader = autoclass('java.lang.ClassLoader')
 
     # convert strings to Class
@@ -156,7 +156,9 @@ cdef create_proxy_instance(JNIEnv *j_env, py_obj, j_interfaces):
     j_env[0].RegisterNatives(j_env, nih.j_cls, <JNINativeMethod *>invoke_methods, 1)
 
     # create the proxy and pass it the invocation handler
+    classLoader = ClassLoader.getSystemClassLoader()
+
     cdef JavaClass j_obj = Proxy.newProxyInstance(
-            ClassLoader.getSystemClassLoader(), j_interfaces, nih)
+            classLoader, j_interfaces, nih)
 
     return j_obj
diff --git a/jnius/src/org/jnius/NativeInvocationHandler.java b/jnius/src/org/jnius/NativeInvocationHandler.java
index c50383a..ed5ba66 100644
--- a/jnius/src/org/jnius/NativeInvocationHandler.java
+++ b/jnius/src/org/jnius/NativeInvocationHandler.java
@@ -1,4 +1,4 @@
-package jnius;
+package org.jnius;
 import java.lang.reflect.InvocationHandler;
 import java.lang.reflect.Method;