diff --git a/_javabridge.pyx b/_javabridge.pyx
index 756ec67..9d0cb20 100644
--- a/_javabridge.pyx
+++ b/_javabridge.pyx
@@ -1008,6 +1008,14 @@ cdef class JB_Env:
             if oresult == NULL:
                 result = None
             else:
+                # call apparently succeeded, however:
+                # make_jb_object will call back into JNI to make global ref, which
+                # triggers JNI warnings that we did not check for exceptions
+                # calling code should be doing this as well - but it doesn't
+                # have the opportunity to do so before the next JNI call in this
+                # path.
+                jnienv[0].ExceptionOccurred(jnienv)
+
                 result, e = make_jb_object(self, oresult)
                 if e is not None:
                     raise e
@@ -1106,6 +1114,14 @@ cdef class JB_Env:
             if oresult == NULL:
                 result = None
             else:
+                # call apparently succeeded, however:
+                # make_jb_object will call back into JNI to make global ref, which
+                # triggers JNI warnings that we did not check for exceptions
+                # calling code should be doing this as well - but it doesn't
+                # have the opportunity to do so before the next JNI call in this
+                # path.
+                jnienv[0].ExceptionOccurred(jnienv)
+
                 result, e = make_jb_object(self, oresult)
                 if e is not None:
                     raise e
diff --git a/javabridge/jutil.py b/javabridge/jutil.py
index 074d1be..bb85378 100644
--- a/javabridge/jutil.py
+++ b/javabridge/jutil.py
@@ -1246,9 +1246,17 @@ def get_nice_result(result, sig):
         rklass = env.get_object_class(result)
         m = env.get_method_id(rklass, 'getClass', '()Ljava/lang/Class;')
         rclass = env.call_method(result, m)
+        x = env.exception_occurred()
+        if x is not None:
+            raise JavaException(x)
+
         rkklass = env.get_object_class(rclass)
         m = env.get_method_id(rkklass, 'isPrimitive', '()Z')
         is_primitive = env.call_method(rclass, m)
+        x = env.exception_occurred()
+        if x is not None:
+            raise JavaException(x)
+
         if is_primitive:
             rc = get_class_wrapper(rclass, True)
             classname = rc.getCanonicalName()