Allow users to create ParameterException with description and cause

This is useful in custom validators: it may want to provide both description
and exception caused it. E.g. in case of file operations

1 files changed, 4 insertions, 0 deletions

diff --git a/src/main/java/com/beust/jcommander/ParameterException.java b/src/main/java/com/beust/jcommander/ParameterException.java
index 3c0f588..2bba7d1 100644
--- a/src/main/java/com/beust/jcommander/ParameterException.java
+++ b/src/main/java/com/beust/jcommander/ParameterException.java
@@ -34,5 +34,9 @@ public class ParameterException extends RuntimeException {
   public ParameterException(String string) {
     super(string);
   }
+  
+  public ParameterException(String string, Throwable t) {
+      super(string, t);
+  }   
 
 }