Problemas com Java Web Start

java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.sun.javaws.Launcher.executeApplication(Unknown Source)
	at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
	at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
	at com.sun.javaws.Launcher.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ExceptionInInitializerError
	at org.hibernate.connection.C3P0ConnectionProvider.configure(C3P0ConnectionProvider.java:84)
	at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:80)
	at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:362)
	at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:60)
	at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1463)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1004)
	at dao.HibernateUtility.<clinit>(HibernateUtility.java:14)
	at form.Principal.atualizarTabela(Principal.java:327)
	at form.Principal.<init>(Principal.java:109)
	at main.StartApp.main(StartApp.java:25)
	... 9 more
Caused by: java.security.AccessControlException: access denied (java.util.PropertyPermission * read,write)
	at java.security.AccessControlContext.checkPermission(Unknown Source)
	at java.security.AccessController.checkPermission(Unknown Source)
	at java.lang.SecurityManager.checkPermission(Unknown Source)
	at java.lang.SecurityManager.checkPropertiesAccess(Unknown Source)
	at java.lang.System.getProperties(Unknown Source)
	at com.mchange.v2.c3p0.PoolConfig.<clinit>(PoolConfig.java:89)
	... 19 more