diff --git a/karaf/main/src/main/java/org/apache/felix/karaf/main/Bootstrap.java b/karaf/main/src/main/java/org/apache/felix/karaf/main/Bootstrap.java
new file mode 100644
index 0000000..c09b3f9
--- /dev/null
+++ b/karaf/main/src/main/java/org/apache/felix/karaf/main/Bootstrap.java
@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.felix.karaf.main;
+
+/**
+ * The Bootstrap class is used by the wrapper shell to bootstrap Karaf.
+ * Given JSW is using introspection to launch the main method, it would cause
+ * a CNFE on the OSGi related classes.  Using an indirection solves this problem.
+ */
+public class Bootstrap {
+
+    public static void main(String[] args) throws Exception {
+        Main.main(args);
+    }
+}
diff --git a/karaf/shell/wrapper/src/main/resources/org/apache/felix/karaf/shell/wrapper/unix/karaf-wrapper.conf b/karaf/shell/wrapper/src/main/resources/org/apache/felix/karaf/shell/wrapper/unix/karaf-wrapper.conf
index d146a7d..7410ada 100644
--- a/karaf/shell/wrapper/src/main/resources/org/apache/felix/karaf/shell/wrapper/unix/karaf-wrapper.conf
+++ b/karaf/shell/wrapper/src/main/resources/org/apache/felix/karaf/shell/wrapper/unix/karaf-wrapper.conf
@@ -40,6 +40,8 @@
 wrapper.java.additional.3=-Dcom.sun.management.jmxremote
 wrapper.java.additional.4=-Dkaraf.startLocalConsole=false
 wrapper.java.additional.5=-Dkaraf.startRemoteShell=true
+wrapper.java.additional.6=-Djava.endorsed.dirs="%JAVA_HOME%/lib/endorsed;%KARAF_HOME%/lib/endorsed"
+wrapper.java.additional.7=-Djava.ext.dirs="%JAVA_HOME%/lib/ext;%KARAF_HOME%/lib/ext"
 
 # Uncomment to enable jmx
 #wrapper.java.additional.n=-Dcom.sun.management.jmxremote.port=1616
diff --git a/karaf/shell/wrapper/src/main/resources/org/apache/felix/karaf/shell/wrapper/windows/karaf-wrapper.conf b/karaf/shell/wrapper/src/main/resources/org/apache/felix/karaf/shell/wrapper/windows/karaf-wrapper.conf
index d146470..7347b76 100644
--- a/karaf/shell/wrapper/src/main/resources/org/apache/felix/karaf/shell/wrapper/windows/karaf-wrapper.conf
+++ b/karaf/shell/wrapper/src/main/resources/org/apache/felix/karaf/shell/wrapper/windows/karaf-wrapper.conf
@@ -40,6 +40,8 @@
 wrapper.java.additional.3=-Dcom.sun.management.jmxremote
 wrapper.java.additional.4=-Dkaraf.startLocalConsole=false
 wrapper.java.additional.5=-Dkaraf.startRemoteShell=true
+wrapper.java.additional.6=-Djava.endorsed.dirs="%JAVA_HOME%/lib/endorsed;%KARAF_HOME%/lib/endorsed"
+wrapper.java.additional.7=-Djava.ext.dirs="%JAVA_HOME%/lib/ext;%KARAF_HOME%/lib/ext"
 
 # Uncomment to enable jmx
 #wrapper.java.additional.n=-Dcom.sun.management.jmxremote.port=1616