package vnet.sms.common.shell.springshell.internal.util;
/**
* Methods for working with exceptions.
*
* @author Ben Alex
* @since 1.0
*/
public abstract class ExceptionUtils {
/**
* Obtains the root cause of an exception, if available.
*
* @param ex
* to extract the root cause from (required)
* @return the root cause, or original exception is unavailable (guaranteed
* to never be null)
*/
public final static Throwable extractRootCause(final Throwable ex) {
Assert.notNull(ex, "An exception is required");
Throwable root = ex;
if (ex.getCause() != null) {
root = ex.getCause();
}
return root;
}
}