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This module exists solely to package all other gwt modules into a single uber jar. This makes deploying to non-mavenized targets much easier. Of course, you would be wise to inherit your dependencies individually; the uber jar is intended for projects like collide, which have complex configuration, and adding many jars would be a pain.

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package xapi.util.api;

public interface ValidatesValue  {

  /**
   * Return null for valid,
   * and String message for invalid.
   * @param object - The object to validate
   * @param message - Some debug data to prepend to invalid message
   * @return message + " why object is invalid";
   */
  String validate(V object, String message);

}