diff --git a/jpype/_core.py b/jpype/_core.py
index 7807dfdfd..a9e256625 100644
--- a/jpype/_core.py
+++ b/jpype/_core.py
@@ -302,7 +302,8 @@ def startJVM(
         # this guarentees all classes have the same permissions as they did in the past
         extra_jvm_args += [
             '-Djava.system.class.loader=org.jpype.classloader.DynamicClassLoader',
-            '-Djava.class.path=%s'%support_lib
+            '-Djava.class.path=%s'%support_lib,
+            '-Xshare:off'
         ]
         late_load = True
     else: