code: public String getWebAlias()
      {
          String contextPath = context.getProperty(BaseWebappServlet.ALIAS);
          if (contextPath == null)
              contextPath = context.getProperty(BaseWebappServlet.ALIAS.substring(BaseWebappServlet.PROPERTY_PREFIX.length()));
          if (contextPath == null)
              contextPath = this.getProperty(BaseWebappServlet.ALIAS);
          if (contextPath == null)
              contextPath = this.getProperty(BaseWebappServlet.ALIAS.substring(BaseWebappServlet.PROPERTY_PREFIX.length()));
          if (contextPath == null)
          {
              contextPath = this.getServicePid();
              if (contextPath.lastIndexOf('.') != -1)
                  contextPath = contextPath.substring(contextPath.lastIndexOf('.') + 1);
          }
          if (!contextPath.startsWith("/"))
              contextPath = "/" + contextPath;
          return contextPath;
      }
docs: Get the web alias for this servlet.
  @param context
  @return