public static URL getSecurityPropertiesFileURL() {
    return getFileURL(getSecurityPropertiesFile());
  }
Gets an <code>URL</code> for the security properties file, if one can be found, that the
connect method will use as its properties file.
<p>
See {@link #SECURITY_PROPERTIES_FILE_PROPERTY} for information on the name of the properties
file and what locations it will be looked for in.

@return a <code>URL</code> that names the GemFire security properties file. Null is returned if
        no properties file was found.
@see #SECURITY_PROPERTIES_FILE_PROPERTY
@see #SECURITY_PROPERTIES_FILE_DEFAULT
@see #getSecurityPropertiesFile()
@since GemFire 6.6.2
geode-core/src/main/java/org/apache/geode/distributed/DistributedSystem.java