protected PermissionCollection getPermissions(CodeSource codeSource) { PermissionCollection perms; try { try { perms = super.getPermissions(codeSource); } catch (SecurityException e) { // We lied about our CodeSource and that makes URLClassLoader unhappy. perms = new Permissions(); } ProtectionDomain myDomain = AccessController.doPrivileged( new PrivilegedAction<ProtectionDomain>() { public ProtectionDomain run() { return getClass().getProtectionDomain(); } }); PermissionCollection myPerms = myDomain.getPermissions(); if (myPerms != null) { for (Enumeration<Permission> elements = myPerms.elements(); elements.hasMoreElements(); ) { perms.add(elements.nextElement()); } } } catch (Throwable e) { // We lied about our CodeSource and that makes URLClassLoader unhappy. perms = new Permissions(); } perms.setReadOnly(); return perms; }