FOUND IN CLASS PATH: Derby embedded engine library (derby.jar) Unable to access Protection Domain or Code Source for class interface org.apache.derby.database.Database: access denied (java.lang.RuntimePermission getProtectionDomain) user-specified class (SimpleApp) Unable to access Protection Domain or Code Source for class class SimpleApp: access denied (java.lang.RuntimePermission getProtectionDomain) SUCCESS: All Derby related classes found in class path.