Class ExceptionUtils

java.lang.Object
org.apache.tapestry5.commons.util.ExceptionUtils

public class ExceptionUtils extends Object
Contains static methods useful for manipulating exceptions.
  • Constructor Details

  • Method Details

    • findCause

      public static <T extends Throwable> T findCause(Throwable t, Class<T> type)
      Locates a particular type of exception, working its way via the cause property of each exception in the exception stack.
      Parameters:
      t - the outermost exception
      type - the type of exception to search for
      Returns:
      the first exception of the given type, if found, or null
    • findCause

      public static <T extends Throwable> T findCause(Throwable t, Class<T> type, PropertyAccess access)
      Locates a particular type of exception, working its way down via any property that returns some type of Exception. This is more expensive, but more accurate, than findCause(Throwable, Class) as it works with older exceptions that do not properly implement the (relatively new) cause property.
      Parameters:
      t - the outermost exception
      type - the type of exception to search for
      access - used to access properties
      Returns:
      the first exception of the given type, if found, or null
    • toMessage

      public static String toMessage(Throwable exception)
      Extracts the message from an exception. If the exception's message is null, returns the exceptions class name.
      Parameters:
      exception - to extract message from
      Returns:
      message or class name
      Since:
      5.4
    • isAnnotationInStackTrace

      public static boolean isAnnotationInStackTrace(Throwable t, Class<? extends Annotation> annotationClass)
      Tells whether an exception annotated with a given annotation is found in the stack trace.
      Returns:
      true or false
      Since:
      5.8.3