code: public static void setDefaultContextUUID() {
  		System.setProperty(JanusConfig.BOOT_DEFAULT_CONTEXT_ID_NAME, Boolean.FALSE.toString());
  		System.setProperty(JanusConfig.RANDOM_DEFAULT_CONTEXT_ID_NAME, Boolean.FALSE.toString());
  	}
docs: Force the Janus platform to use the identifier hard-coded in the source code for its default context.
  
  <p>This function is equivalent to the command line option <code>-W</code>.
  
  <p>This function must be called before launching the Janus platform.
  
  @since 2.0.2.0
  @see JanusConfig#BOOT_DEFAULT_CONTEXT_ID_NAME
  @see JanusConfig#RANDOM_DEFAULT_CONTEXT_ID_NAME