LoggingSecurityManager.java

public class LoggingSecurityManager extends SecurityManager {
    private AccessControlContext ctx;
    private Properties properties = new Properties;
    private Set missingProperties = new HashSet();

    public LoggingSecurityManager() {
        properties.add(
            new FilePermission(System.get("java.io.tmpdir") + "/-", "read,write,delete"));

        // maybe...
        properties.add(
            new FilePermission(System.get("user.home") + "/-", "read,write,delete"));

        addSystemPropertyPermissions();
        addSecurityPermissions();
        addClassPathPermissions();
        addOtherPropertyPermissions();

        permissions.add(new RuntimePermission("accessClassInPackage.sun.reflect"));
        permissions.add(new RuntimePermission("accessClassInPackage.sun.jdbc.odbc"));
        permissions.add(new RuntimePermission("accessClassInPackage.sun.security.provider"));
        permissions.add(new SocketPermission("localhost", "resolve"));
        permissions.add(new NetPermission("getProxySelector"));

        ctx = new AccessControlContext(new ProtectionDomain[] {
            new ProtectionDomain(null, permissions)
        });
    }

    /**
     * Add read-only permission to read system properties.
     * We may want to filter this list to remove sensitive information
     */
    public void addSystemPropertyPermissions() {
        for (Object key : Collections.list(System.getProperties().keys())) {
            permissions.add(new PropertyPermission((String) key, "read"));
        }
    }

    /**
     * Add read-only permissions for initializing security.
     */
    public void addSecurityPermissions() {
        permissions.add(new SecurityPermission("getPolicy"));
        permissions.add(new SecurityPermission("getProperty.random.source"));
        permissions.add(new SecurityPermission("getProperty.securerandom.source"));

        for (int i = 1; i < 10; i++) { // configurable limit?
            permissions.add(new SecurityPermission("getProperty.security.provider." + i));
        }

        String s = Security.getProperty("securerandom.source");
        if ((s != null) && s.startsWith("file:/")) {
            permissions.add(new FilePermission(s.substring(5), "read"));
        }

        // should have been covered already but wasn't....
        permissions.add(new FilePermission("/dev/random", "read"));
      }

    /**
     * Add read-only permissions for everything on classpath.
     */
    public void addClassPathPermissions() {
        permissions.add(new FilePermission(String.format("%/lib/-",
            System.getProperty("java.home")), "read"));

        // add standard class path.
        String pathSep = System.getProperty("path.separator");
        for (String entry : System.getProperty("java.class.path").split(pathSep)) {
            File f = new File(entry);
            if (f.isFile()) {
                permissions.add(new FilePermission(entry, "read"));
            } else if (f.isDirectory()) {
                permissions.add(new FilePermission(String.format("%s/-", entry), "read"));
            } // or could be neither fish nor fowl
        }

        // add endorsed extensions.
        for (String dir : System.getProperty("java.ext.dirs").split(pathSep)) {
            permissions.add(new FilePermission(String.format("%s/-", dir), "read"));
        }
    }

    /**
     * Add other standard properties.
     */
    public void addOtherPropertyPermissions() {
        permissions.add(new PropertyPermission("jdbc.drivers", "read"));
        permissions.add(new PropertyPermission("java.security.egd", "read"));
        permissions.add(new PropertyPermission("socksProxyHost", "read"));
    }
}

Coming from http://stackoverflow.com/questions/3817330/noclassdeffounderror-when-creating-objects-under-securitymanager