Added a getter to allow retrieving the exception related to an

exception context provider.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1164570 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/math/exception/MathArithmeticException.java

@@ -61,6 +61,11 @@ public class MathArithmeticException extends ArithmeticException
         return context;
     }
 
+    /** {@inheritDoc} */
+    public Throwable getException() {
+        return this;
+    }
+
     /** {@inheritDoc} */
     @Override
     public String getMessage() {

src/main/java/org/apache/commons/math/exception/MathIllegalArgumentException.java

@@ -50,6 +50,11 @@ public class MathIllegalArgumentException extends IllegalArgumentException
         return context;
     }
 
+    /** {@inheritDoc} */
+    public Throwable getException() {
+        return this;
+    }
+
     /** {@inheritDoc} */
     @Override
     public String getMessage() {

src/main/java/org/apache/commons/math/exception/MathIllegalStateException.java

@@ -72,6 +72,11 @@ public class MathIllegalStateException extends IllegalStateException
         return context;
     }
 
+    /** {@inheritDoc} */
+    public Throwable getException() {
+        return this;
+    }
+
     /** {@inheritDoc} */
     @Override
     public String getMessage() {

src/main/java/org/apache/commons/math/exception/MathUnsupportedOperationException.java

@@ -58,6 +58,11 @@ public class MathUnsupportedOperationException extends UnsupportedOperationExcep
         return context;
     }
 
+    /** {@inheritDoc} */
+    public Throwable getException() {
+        return this;
+    }
+
     /** {@inheritDoc} */
     @Override
     public String getMessage() {

src/main/java/org/apache/commons/math/exception/MathUserException.java

@@ -85,6 +85,11 @@ public class MathUserException extends RuntimeException
         return context;
     }
 
+    /** {@inheritDoc} */
+    public Throwable getException() {
+        return this;
+    }
+
     /** {@inheritDoc} */
     @Override
     public String getMessage() {

src/main/java/org/apache/commons/math/exception/util/ExceptionContextProvider.java

@@ -30,4 +30,10 @@ public interface ExceptionContextProvider {
      * @return a reference to the exception context.
      */
     ExceptionContext getContext();
+
+    /** Get a reference to the exception to which the context relates.
+     * @return a reference to the exception to which the context relates
+     */
+    Throwable getException();
+
 }

src/site/xdoc/changes.xml

@@ -52,6 +52,10 @@ The <action> type attribute can be add,update,fix,remove.
     If the output is not quite correct, check for invisible trailing spaces!
      -->
     <release version="3.0" date="TBD" description="TBD">
+      <action dev="luc" type="add" >
+        Added a getter to allow retrieving the exception related to an exception context
+        provider. 
+      </action>
       <action dev="psteitz" type="update" issue="MATH-364" due-to="Christian Winter">
         Added erf(double,double) to Erf and used this to improve tail probability
         accuracy in NormalDistributionImpl.