From f3d957dfbe751df8c15f9435819fc62469c6ad88 Mon Sep 17 00:00:00 2001
From: Gilles Sadowski <erans@apache.org>
Date: Fri, 12 Nov 2010 17:53:50 +0000
Subject: [PATCH] MATH-425 Removed deprecated "MatrixVisitorException".
 Modified affected files.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1034494 13f79535-47bb-0310-9956-ffa450edef68
---
 .../math/linear/AbstractFieldMatrix.java      | 42 ++++++---------
 .../math/linear/AbstractRealMatrix.java       | 36 +++++--------
 .../math/linear/Array2DRowFieldMatrix.java    | 24 +++------
 .../math/linear/Array2DRowRealMatrix.java     | 24 +++------
 .../commons/math/linear/BlockFieldMatrix.java | 28 ++++------
 .../commons/math/linear/BlockRealMatrix.java  | 24 +++------
 .../DefaultFieldMatrixChangingVisitor.java    |  3 +-
 .../DefaultFieldMatrixPreservingVisitor.java  |  4 +-
 .../DefaultRealMatrixChangingVisitor.java     |  3 +-
 .../DefaultRealMatrixPreservingVisitor.java   |  4 +-
 .../commons/math/linear/FieldMatrix.java      | 36 ++++++++-----
 .../linear/FieldMatrixChangingVisitor.java    |  7 ++-
 .../linear/FieldMatrixPreservingVisitor.java  |  7 ++-
 .../math/linear/MatrixVisitorException.java   | 53 -------------------
 .../commons/math/linear/RealMatrix.java       | 36 ++++++++-----
 .../linear/RealMatrixChangingVisitor.java     |  7 ++-
 .../linear/RealMatrixPreservingVisitor.java   |  7 ++-
 .../ode/nonstiff/AdamsMoultonIntegrator.java  |  4 +-
 .../math/linear/QRDecompositionImplTest.java  |  3 +-
 .../commons/math/linear/QRSolverTest.java     |  3 +-
 .../OLSMultipleLinearRegressionTest.java      |  4 +-
 21 files changed, 129 insertions(+), 230 deletions(-)
 delete mode 100644 src/main/java/org/apache/commons/math/linear/MatrixVisitorException.java

diff --git a/src/main/java/org/apache/commons/math/linear/AbstractFieldMatrix.java b/src/main/java/org/apache/commons/math/linear/AbstractFieldMatrix.java
index 774c2433c..dbcb9811a 100644
--- a/src/main/java/org/apache/commons/math/linear/AbstractFieldMatrix.java
+++ b/src/main/java/org/apache/commons/math/linear/AbstractFieldMatrix.java
@@ -730,8 +730,7 @@ public abstract class AbstractFieldMatrix<T extends FieldElement<T>> implements
     }
 
     /** {@inheritDoc} */
-    public T walkInRowOrder(final FieldMatrixChangingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInRowOrder(final FieldMatrixChangingVisitor<T> visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -746,8 +745,7 @@ public abstract class AbstractFieldMatrix<T extends FieldElement<T>> implements
     }
 
     /** {@inheritDoc} */
-    public T walkInRowOrder(final FieldMatrixPreservingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInRowOrder(final FieldMatrixPreservingVisitor<T> visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -762,8 +760,7 @@ public abstract class AbstractFieldMatrix<T extends FieldElement<T>> implements
     /** {@inheritDoc} */
     public T walkInRowOrder(final FieldMatrixChangingVisitor<T> visitor,
                             final int startRow, final int endRow,
-                            final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                            final int startColumn, final int endColumn) {
         checkSubMatrixIndex(startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -779,9 +776,8 @@ public abstract class AbstractFieldMatrix<T extends FieldElement<T>> implements
 
     /** {@inheritDoc} */
     public T walkInRowOrder(final FieldMatrixPreservingVisitor<T> visitor,
-                                 final int startRow, final int endRow,
-                                 final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                            final int startRow, final int endRow,
+                            final int startColumn, final int endColumn) {
         checkSubMatrixIndex(startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -794,8 +790,7 @@ public abstract class AbstractFieldMatrix<T extends FieldElement<T>> implements
     }
 
     /** {@inheritDoc} */
-    public T walkInColumnOrder(final FieldMatrixChangingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInColumnOrder(final FieldMatrixChangingVisitor<T> visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -810,8 +805,7 @@ public abstract class AbstractFieldMatrix<T extends FieldElement<T>> implements
     }
 
     /** {@inheritDoc} */
-    public T walkInColumnOrder(final FieldMatrixPreservingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInColumnOrder(final FieldMatrixPreservingVisitor<T> visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -826,8 +820,7 @@ public abstract class AbstractFieldMatrix<T extends FieldElement<T>> implements
     /** {@inheritDoc} */
     public T walkInColumnOrder(final FieldMatrixChangingVisitor<T> visitor,
                                final int startRow, final int endRow,
-                               final int startColumn, final int endColumn)
-    throws MatrixVisitorException {
+                               final int startColumn, final int endColumn) {
         checkSubMatrixIndex(startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -844,8 +837,7 @@ public abstract class AbstractFieldMatrix<T extends FieldElement<T>> implements
     /** {@inheritDoc} */
     public T walkInColumnOrder(final FieldMatrixPreservingVisitor<T> visitor,
                                final int startRow, final int endRow,
-                               final int startColumn, final int endColumn)
-    throws MatrixVisitorException {
+                               final int startColumn, final int endColumn) {
         checkSubMatrixIndex(startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -858,30 +850,26 @@ public abstract class AbstractFieldMatrix<T extends FieldElement<T>> implements
     }
 
     /** {@inheritDoc} */
-    public T walkInOptimizedOrder(final FieldMatrixChangingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInOptimizedOrder(final FieldMatrixChangingVisitor<T> visitor) {
         return walkInRowOrder(visitor);
     }
 
     /** {@inheritDoc} */
-    public T walkInOptimizedOrder(final FieldMatrixPreservingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInOptimizedOrder(final FieldMatrixPreservingVisitor<T> visitor) {
         return walkInRowOrder(visitor);
     }
 
     /** {@inheritDoc} */
     public T walkInOptimizedOrder(final FieldMatrixChangingVisitor<T> visitor,
-                                       final int startRow, final int endRow,
-                                       final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                  final int startRow, final int endRow,
+                                  final int startColumn, final int endColumn) {
         return walkInRowOrder(visitor, startRow, endRow, startColumn, endColumn);
     }
 
     /** {@inheritDoc} */
     public T walkInOptimizedOrder(final FieldMatrixPreservingVisitor<T> visitor,
-                                       final int startRow, final int endRow,
-                                       final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                  final int startRow, final int endRow,
+                                  final int startColumn, final int endColumn) {
         return walkInRowOrder(visitor, startRow, endRow, startColumn, endColumn);
     }
 
diff --git a/src/main/java/org/apache/commons/math/linear/AbstractRealMatrix.java b/src/main/java/org/apache/commons/math/linear/AbstractRealMatrix.java
index 16e166713..df4d05818 100644
--- a/src/main/java/org/apache/commons/math/linear/AbstractRealMatrix.java
+++ b/src/main/java/org/apache/commons/math/linear/AbstractRealMatrix.java
@@ -647,8 +647,7 @@ public abstract class AbstractRealMatrix implements RealMatrix {
     }
 
     /** {@inheritDoc} */
-    public double walkInRowOrder(final RealMatrixChangingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInRowOrder(final RealMatrixChangingVisitor visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -663,8 +662,7 @@ public abstract class AbstractRealMatrix implements RealMatrix {
     }
 
     /** {@inheritDoc} */
-    public double walkInRowOrder(final RealMatrixPreservingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInRowOrder(final RealMatrixPreservingVisitor visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -679,8 +677,7 @@ public abstract class AbstractRealMatrix implements RealMatrix {
     /** {@inheritDoc} */
     public double walkInRowOrder(final RealMatrixChangingVisitor visitor,
                                  final int startRow, final int endRow,
-                                 final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                 final int startColumn, final int endColumn) {
         MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -697,8 +694,7 @@ public abstract class AbstractRealMatrix implements RealMatrix {
     /** {@inheritDoc} */
     public double walkInRowOrder(final RealMatrixPreservingVisitor visitor,
                                  final int startRow, final int endRow,
-                                 final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                 final int startColumn, final int endColumn) {
         MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -711,8 +707,7 @@ public abstract class AbstractRealMatrix implements RealMatrix {
     }
 
     /** {@inheritDoc} */
-    public double walkInColumnOrder(final RealMatrixChangingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInColumnOrder(final RealMatrixChangingVisitor visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -727,8 +722,7 @@ public abstract class AbstractRealMatrix implements RealMatrix {
     }
 
     /** {@inheritDoc} */
-    public double walkInColumnOrder(final RealMatrixPreservingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInColumnOrder(final RealMatrixPreservingVisitor visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -743,8 +737,7 @@ public abstract class AbstractRealMatrix implements RealMatrix {
     /** {@inheritDoc} */
     public double walkInColumnOrder(final RealMatrixChangingVisitor visitor,
                                     final int startRow, final int endRow,
-                                    final int startColumn, final int endColumn)
-    throws MatrixVisitorException {
+                                    final int startColumn, final int endColumn) {
         MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -761,8 +754,7 @@ public abstract class AbstractRealMatrix implements RealMatrix {
     /** {@inheritDoc} */
     public double walkInColumnOrder(final RealMatrixPreservingVisitor visitor,
                                     final int startRow, final int endRow,
-                                    final int startColumn, final int endColumn)
-    throws MatrixVisitorException {
+                                    final int startColumn, final int endColumn) {
         MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -775,30 +767,26 @@ public abstract class AbstractRealMatrix implements RealMatrix {
     }
 
     /** {@inheritDoc} */
-    public double walkInOptimizedOrder(final RealMatrixChangingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInOptimizedOrder(final RealMatrixChangingVisitor visitor) {
         return walkInRowOrder(visitor);
     }
 
     /** {@inheritDoc} */
-    public double walkInOptimizedOrder(final RealMatrixPreservingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInOptimizedOrder(final RealMatrixPreservingVisitor visitor) {
         return walkInRowOrder(visitor);
     }
 
     /** {@inheritDoc} */
     public double walkInOptimizedOrder(final RealMatrixChangingVisitor visitor,
                                        final int startRow, final int endRow,
-                                       final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                       final int startColumn, final int endColumn) {
         return walkInRowOrder(visitor, startRow, endRow, startColumn, endColumn);
     }
 
     /** {@inheritDoc} */
     public double walkInOptimizedOrder(final RealMatrixPreservingVisitor visitor,
                                        final int startRow, final int endRow,
-                                       final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                       final int startColumn, final int endColumn) {
         return walkInRowOrder(visitor, startRow, endRow, startColumn, endColumn);
     }
 
diff --git a/src/main/java/org/apache/commons/math/linear/Array2DRowFieldMatrix.java b/src/main/java/org/apache/commons/math/linear/Array2DRowFieldMatrix.java
index 454ef0688..f47e8784f 100644
--- a/src/main/java/org/apache/commons/math/linear/Array2DRowFieldMatrix.java
+++ b/src/main/java/org/apache/commons/math/linear/Array2DRowFieldMatrix.java
@@ -435,8 +435,7 @@ public class Array2DRowFieldMatrix<T extends FieldElement<T>> extends AbstractFi
 
     /** {@inheritDoc} */
     @Override
-    public T walkInRowOrder(final FieldMatrixChangingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInRowOrder(final FieldMatrixChangingVisitor<T> visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -451,8 +450,7 @@ public class Array2DRowFieldMatrix<T extends FieldElement<T>> extends AbstractFi
 
     /** {@inheritDoc} */
     @Override
-    public T walkInRowOrder(final FieldMatrixPreservingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInRowOrder(final FieldMatrixPreservingVisitor<T> visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -469,8 +467,7 @@ public class Array2DRowFieldMatrix<T extends FieldElement<T>> extends AbstractFi
     @Override
     public T walkInRowOrder(final FieldMatrixChangingVisitor<T> visitor,
                             final int startRow, final int endRow,
-                            final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                            final int startColumn, final int endColumn) {
         checkSubMatrixIndex(startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -487,8 +484,7 @@ public class Array2DRowFieldMatrix<T extends FieldElement<T>> extends AbstractFi
     @Override
     public T walkInRowOrder(final FieldMatrixPreservingVisitor<T> visitor,
                             final int startRow, final int endRow,
-                            final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                            final int startColumn, final int endColumn) {
         checkSubMatrixIndex(startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -503,8 +499,7 @@ public class Array2DRowFieldMatrix<T extends FieldElement<T>> extends AbstractFi
 
     /** {@inheritDoc} */
     @Override
-    public T walkInColumnOrder(final FieldMatrixChangingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInColumnOrder(final FieldMatrixChangingVisitor<T> visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -519,8 +514,7 @@ public class Array2DRowFieldMatrix<T extends FieldElement<T>> extends AbstractFi
 
     /** {@inheritDoc} */
     @Override
-    public T walkInColumnOrder(final FieldMatrixPreservingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInColumnOrder(final FieldMatrixPreservingVisitor<T> visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -536,8 +530,7 @@ public class Array2DRowFieldMatrix<T extends FieldElement<T>> extends AbstractFi
     @Override
     public T walkInColumnOrder(final FieldMatrixChangingVisitor<T> visitor,
                                final int startRow, final int endRow,
-                               final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                               final int startColumn, final int endColumn) {
         checkSubMatrixIndex(startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -554,8 +547,7 @@ public class Array2DRowFieldMatrix<T extends FieldElement<T>> extends AbstractFi
     @Override
     public T walkInColumnOrder(final FieldMatrixPreservingVisitor<T> visitor,
                                final int startRow, final int endRow,
-                               final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                               final int startColumn, final int endColumn) {
         checkSubMatrixIndex(startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
diff --git a/src/main/java/org/apache/commons/math/linear/Array2DRowRealMatrix.java b/src/main/java/org/apache/commons/math/linear/Array2DRowRealMatrix.java
index c605acc3e..1c868352e 100644
--- a/src/main/java/org/apache/commons/math/linear/Array2DRowRealMatrix.java
+++ b/src/main/java/org/apache/commons/math/linear/Array2DRowRealMatrix.java
@@ -385,8 +385,7 @@ public class Array2DRowRealMatrix extends AbstractRealMatrix implements Serializ
 
     /** {@inheritDoc} */
     @Override
-    public double walkInRowOrder(final RealMatrixChangingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInRowOrder(final RealMatrixChangingVisitor visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -401,8 +400,7 @@ public class Array2DRowRealMatrix extends AbstractRealMatrix implements Serializ
 
     /** {@inheritDoc} */
     @Override
-    public double walkInRowOrder(final RealMatrixPreservingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInRowOrder(final RealMatrixPreservingVisitor visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -419,8 +417,7 @@ public class Array2DRowRealMatrix extends AbstractRealMatrix implements Serializ
     @Override
     public double walkInRowOrder(final RealMatrixChangingVisitor visitor,
                                  final int startRow, final int endRow,
-                                 final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                 final int startColumn, final int endColumn) {
         MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -437,8 +434,7 @@ public class Array2DRowRealMatrix extends AbstractRealMatrix implements Serializ
     @Override
     public double walkInRowOrder(final RealMatrixPreservingVisitor visitor,
                                  final int startRow, final int endRow,
-                                 final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                 final int startColumn, final int endColumn) {
         MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -453,8 +449,7 @@ public class Array2DRowRealMatrix extends AbstractRealMatrix implements Serializ
 
     /** {@inheritDoc} */
     @Override
-    public double walkInColumnOrder(final RealMatrixChangingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInColumnOrder(final RealMatrixChangingVisitor visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -469,8 +464,7 @@ public class Array2DRowRealMatrix extends AbstractRealMatrix implements Serializ
 
     /** {@inheritDoc} */
     @Override
-    public double walkInColumnOrder(final RealMatrixPreservingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInColumnOrder(final RealMatrixPreservingVisitor visitor) {
         final int rows    = getRowDimension();
         final int columns = getColumnDimension();
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
@@ -486,8 +480,7 @@ public class Array2DRowRealMatrix extends AbstractRealMatrix implements Serializ
     @Override
     public double walkInColumnOrder(final RealMatrixChangingVisitor visitor,
                                     final int startRow, final int endRow,
-                                    final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                    final int startColumn, final int endColumn) {
         MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
@@ -504,8 +497,7 @@ public class Array2DRowRealMatrix extends AbstractRealMatrix implements Serializ
     @Override
     public double walkInColumnOrder(final RealMatrixPreservingVisitor visitor,
                                     final int startRow, final int endRow,
-                                    final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                    final int startColumn, final int endColumn) {
         MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
         visitor.start(getRowDimension(), getColumnDimension(),
                       startRow, endRow, startColumn, endColumn);
diff --git a/src/main/java/org/apache/commons/math/linear/BlockFieldMatrix.java b/src/main/java/org/apache/commons/math/linear/BlockFieldMatrix.java
index 0a2bfbe32..75e3c6949 100644
--- a/src/main/java/org/apache/commons/math/linear/BlockFieldMatrix.java
+++ b/src/main/java/org/apache/commons/math/linear/BlockFieldMatrix.java
@@ -1320,8 +1320,7 @@ public class BlockFieldMatrix<T extends FieldElement<T>> extends AbstractFieldMa
 
     /** {@inheritDoc} */
     @Override
-    public T walkInRowOrder(final FieldMatrixChangingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInRowOrder(final FieldMatrixChangingVisitor<T> visitor) {
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
         for (int iBlock = 0; iBlock < blockRows; ++iBlock) {
             final int pStart = iBlock * BLOCK_SIZE;
@@ -1345,8 +1344,7 @@ public class BlockFieldMatrix<T extends FieldElement<T>> extends AbstractFieldMa
 
     /** {@inheritDoc} */
     @Override
-    public T walkInRowOrder(final FieldMatrixPreservingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInRowOrder(final FieldMatrixPreservingVisitor<T> visitor) {
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
         for (int iBlock = 0; iBlock < blockRows; ++iBlock) {
             final int pStart = iBlock * BLOCK_SIZE;
@@ -1371,9 +1369,8 @@ public class BlockFieldMatrix<T extends FieldElement<T>> extends AbstractFieldMa
     /** {@inheritDoc} */
     @Override
     public T walkInRowOrder(final FieldMatrixChangingVisitor<T> visitor,
-                                 final int startRow, final int endRow,
-                                 final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                            final int startRow, final int endRow,
+                            final int startColumn, final int endColumn) {
         checkSubMatrixIndex(startRow, endRow, startColumn, endColumn);
         visitor.start(rows, columns, startRow, endRow, startColumn, endColumn);
         for (int iBlock = startRow / BLOCK_SIZE; iBlock < 1 + endRow / BLOCK_SIZE; ++iBlock) {
@@ -1401,9 +1398,8 @@ public class BlockFieldMatrix<T extends FieldElement<T>> extends AbstractFieldMa
     /** {@inheritDoc} */
     @Override
     public T walkInRowOrder(final FieldMatrixPreservingVisitor<T> visitor,
-                                 final int startRow, final int endRow,
-                                 final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                            final int startRow, final int endRow,
+                            final int startColumn, final int endColumn) {
         checkSubMatrixIndex(startRow, endRow, startColumn, endColumn);
         visitor.start(rows, columns, startRow, endRow, startColumn, endColumn);
         for (int iBlock = startRow / BLOCK_SIZE; iBlock < 1 + endRow / BLOCK_SIZE; ++iBlock) {
@@ -1430,8 +1426,7 @@ public class BlockFieldMatrix<T extends FieldElement<T>> extends AbstractFieldMa
 
     /** {@inheritDoc} */
     @Override
-    public T walkInOptimizedOrder(final FieldMatrixChangingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInOptimizedOrder(final FieldMatrixChangingVisitor<T> visitor) {
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
         int blockIndex = 0;
         for (int iBlock = 0; iBlock < blockRows; ++iBlock) {
@@ -1456,8 +1451,7 @@ public class BlockFieldMatrix<T extends FieldElement<T>> extends AbstractFieldMa
 
     /** {@inheritDoc} */
     @Override
-    public T walkInOptimizedOrder(final FieldMatrixPreservingVisitor<T> visitor)
-        throws MatrixVisitorException {
+    public T walkInOptimizedOrder(final FieldMatrixPreservingVisitor<T> visitor) {
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
         int blockIndex = 0;
         for (int iBlock = 0; iBlock < blockRows; ++iBlock) {
@@ -1484,8 +1478,7 @@ public class BlockFieldMatrix<T extends FieldElement<T>> extends AbstractFieldMa
     @Override
     public T walkInOptimizedOrder(final FieldMatrixChangingVisitor<T> visitor,
                                        final int startRow, final int endRow,
-                                       final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                       final int startColumn, final int endColumn) {
         checkSubMatrixIndex(startRow, endRow, startColumn, endColumn);
         visitor.start(rows, columns, startRow, endRow, startColumn, endColumn);
         for (int iBlock = startRow / BLOCK_SIZE; iBlock < 1 + endRow / BLOCK_SIZE; ++iBlock) {
@@ -1514,8 +1507,7 @@ public class BlockFieldMatrix<T extends FieldElement<T>> extends AbstractFieldMa
     @Override
     public T walkInOptimizedOrder(final FieldMatrixPreservingVisitor<T> visitor,
                                        final int startRow, final int endRow,
-                                       final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                       final int startColumn, final int endColumn) {
         checkSubMatrixIndex(startRow, endRow, startColumn, endColumn);
         visitor.start(rows, columns, startRow, endRow, startColumn, endColumn);
         for (int iBlock = startRow / BLOCK_SIZE; iBlock < 1 + endRow / BLOCK_SIZE; ++iBlock) {
diff --git a/src/main/java/org/apache/commons/math/linear/BlockRealMatrix.java b/src/main/java/org/apache/commons/math/linear/BlockRealMatrix.java
index 7d973589d..031b58e42 100644
--- a/src/main/java/org/apache/commons/math/linear/BlockRealMatrix.java
+++ b/src/main/java/org/apache/commons/math/linear/BlockRealMatrix.java
@@ -1304,8 +1304,7 @@ public class BlockRealMatrix extends AbstractRealMatrix implements Serializable
 
     /** {@inheritDoc} */
     @Override
-    public double walkInRowOrder(final RealMatrixChangingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInRowOrder(final RealMatrixChangingVisitor visitor) {
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
         for (int iBlock = 0; iBlock < blockRows; ++iBlock) {
             final int pStart = iBlock * BLOCK_SIZE;
@@ -1329,8 +1328,7 @@ public class BlockRealMatrix extends AbstractRealMatrix implements Serializable
 
     /** {@inheritDoc} */
     @Override
-    public double walkInRowOrder(final RealMatrixPreservingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInRowOrder(final RealMatrixPreservingVisitor visitor) {
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
         for (int iBlock = 0; iBlock < blockRows; ++iBlock) {
             final int pStart = iBlock * BLOCK_SIZE;
@@ -1356,8 +1354,7 @@ public class BlockRealMatrix extends AbstractRealMatrix implements Serializable
     @Override
     public double walkInRowOrder(final RealMatrixChangingVisitor visitor,
                                  final int startRow, final int endRow,
-                                 final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                 final int startColumn, final int endColumn) {
         MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
         visitor.start(rows, columns, startRow, endRow, startColumn, endColumn);
         for (int iBlock = startRow / BLOCK_SIZE; iBlock < 1 + endRow / BLOCK_SIZE; ++iBlock) {
@@ -1386,8 +1383,7 @@ public class BlockRealMatrix extends AbstractRealMatrix implements Serializable
     @Override
     public double walkInRowOrder(final RealMatrixPreservingVisitor visitor,
                                  final int startRow, final int endRow,
-                                 final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                 final int startColumn, final int endColumn) {
         MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
         visitor.start(rows, columns, startRow, endRow, startColumn, endColumn);
         for (int iBlock = startRow / BLOCK_SIZE; iBlock < 1 + endRow / BLOCK_SIZE; ++iBlock) {
@@ -1414,8 +1410,7 @@ public class BlockRealMatrix extends AbstractRealMatrix implements Serializable
 
     /** {@inheritDoc} */
     @Override
-    public double walkInOptimizedOrder(final RealMatrixChangingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInOptimizedOrder(final RealMatrixChangingVisitor visitor) {
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
         int blockIndex = 0;
         for (int iBlock = 0; iBlock < blockRows; ++iBlock) {
@@ -1440,8 +1435,7 @@ public class BlockRealMatrix extends AbstractRealMatrix implements Serializable
 
     /** {@inheritDoc} */
     @Override
-    public double walkInOptimizedOrder(final RealMatrixPreservingVisitor visitor)
-        throws MatrixVisitorException {
+    public double walkInOptimizedOrder(final RealMatrixPreservingVisitor visitor) {
         visitor.start(rows, columns, 0, rows - 1, 0, columns - 1);
         int blockIndex = 0;
         for (int iBlock = 0; iBlock < blockRows; ++iBlock) {
@@ -1468,8 +1462,7 @@ public class BlockRealMatrix extends AbstractRealMatrix implements Serializable
     @Override
     public double walkInOptimizedOrder(final RealMatrixChangingVisitor visitor,
                                        final int startRow, final int endRow,
-                                       final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                       final int startColumn, final int endColumn) {
         MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
         visitor.start(rows, columns, startRow, endRow, startColumn, endColumn);
         for (int iBlock = startRow / BLOCK_SIZE; iBlock < 1 + endRow / BLOCK_SIZE; ++iBlock) {
@@ -1498,8 +1491,7 @@ public class BlockRealMatrix extends AbstractRealMatrix implements Serializable
     @Override
     public double walkInOptimizedOrder(final RealMatrixPreservingVisitor visitor,
                                        final int startRow, final int endRow,
-                                       final int startColumn, final int endColumn)
-        throws MatrixVisitorException {
+                                       final int startColumn, final int endColumn) {
         MatrixUtils.checkSubMatrixIndex(this, startRow, endRow, startColumn, endColumn);
         visitor.start(rows, columns, startRow, endRow, startColumn, endColumn);
         for (int iBlock = startRow / BLOCK_SIZE; iBlock < 1 + endRow / BLOCK_SIZE; ++iBlock) {
diff --git a/src/main/java/org/apache/commons/math/linear/DefaultFieldMatrixChangingVisitor.java b/src/main/java/org/apache/commons/math/linear/DefaultFieldMatrixChangingVisitor.java
index 11e4b768c..45a325c34 100644
--- a/src/main/java/org/apache/commons/math/linear/DefaultFieldMatrixChangingVisitor.java
+++ b/src/main/java/org/apache/commons/math/linear/DefaultFieldMatrixChangingVisitor.java
@@ -49,8 +49,7 @@ public class DefaultFieldMatrixChangingVisitor<T extends FieldElement<T>>
     }
 
     /** {@inheritDoc} */
-    public T visit(int row, int column, T value)
-        throws MatrixVisitorException {
+    public T visit(int row, int column, T value) {
         return value;
     }
 
diff --git a/src/main/java/org/apache/commons/math/linear/DefaultFieldMatrixPreservingVisitor.java b/src/main/java/org/apache/commons/math/linear/DefaultFieldMatrixPreservingVisitor.java
index 53d4de1d6..e613e4fc9 100644
--- a/src/main/java/org/apache/commons/math/linear/DefaultFieldMatrixPreservingVisitor.java
+++ b/src/main/java/org/apache/commons/math/linear/DefaultFieldMatrixPreservingVisitor.java
@@ -49,9 +49,7 @@ public class DefaultFieldMatrixPreservingVisitor<T extends FieldElement<T>>
     }
 
     /** {@inheritDoc} */
-    public void visit(int row, int column, T value)
-        throws MatrixVisitorException {
-    }
+    public void visit(int row, int column, T value) {}
 
     /** {@inheritDoc} */
     public T end() {
diff --git a/src/main/java/org/apache/commons/math/linear/DefaultRealMatrixChangingVisitor.java b/src/main/java/org/apache/commons/math/linear/DefaultRealMatrixChangingVisitor.java
index 3cdbc5e01..bc8cae8ec 100644
--- a/src/main/java/org/apache/commons/math/linear/DefaultRealMatrixChangingVisitor.java
+++ b/src/main/java/org/apache/commons/math/linear/DefaultRealMatrixChangingVisitor.java
@@ -35,8 +35,7 @@ public class DefaultRealMatrixChangingVisitor implements RealMatrixChangingVisit
     }
 
     /** {@inheritDoc} */
-    public double visit(int row, int column, double value)
-        throws MatrixVisitorException {
+    public double visit(int row, int column, double value) {
         return value;
     }
 
diff --git a/src/main/java/org/apache/commons/math/linear/DefaultRealMatrixPreservingVisitor.java b/src/main/java/org/apache/commons/math/linear/DefaultRealMatrixPreservingVisitor.java
index c701ad0ab..aea8a4627 100644
--- a/src/main/java/org/apache/commons/math/linear/DefaultRealMatrixPreservingVisitor.java
+++ b/src/main/java/org/apache/commons/math/linear/DefaultRealMatrixPreservingVisitor.java
@@ -35,9 +35,7 @@ public class DefaultRealMatrixPreservingVisitor implements RealMatrixPreservingV
     }
 
     /** {@inheritDoc} */
-    public void visit(int row, int column, double value)
-        throws MatrixVisitorException {
-    }
+    public void visit(int row, int column, double value) {}
 
     /** {@inheritDoc} */
     public double end() {
diff --git a/src/main/java/org/apache/commons/math/linear/FieldMatrix.java b/src/main/java/org/apache/commons/math/linear/FieldMatrix.java
index 762b9511d..5d60915e5 100644
--- a/src/main/java/org/apache/commons/math/linear/FieldMatrix.java
+++ b/src/main/java/org/apache/commons/math/linear/FieldMatrix.java
@@ -471,7 +471,8 @@ public interface FieldMatrix<T extends FieldElement<T>> extends AnyMatrix {
      * of a row from left to right before going to the leftmost element
      * of the next row.</p>
      * @param visitor visitor used to process all matrix entries
-     * @exception  MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @see #walkInRowOrder(FieldMatrixPreservingVisitor)
      * @see #walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
      * @see #walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
@@ -494,7 +495,8 @@ public interface FieldMatrix<T extends FieldElement<T>> extends AnyMatrix {
      * of a row from left to right before going to the leftmost element
      * of the next row.</p>
      * @param visitor visitor used to process all matrix entries
-     * @exception  MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @see #walkInRowOrder(FieldMatrixChangingVisitor)
      * @see #walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
      * @see #walkInRowOrder(FieldMatrixPreservingVisitor, int, int, int, int)
@@ -521,7 +523,8 @@ public interface FieldMatrix<T extends FieldElement<T>> extends AnyMatrix {
      * @param endRow Final row index (inclusive)
      * @param startColumn Initial column index
      * @param endColumn Final column index
-     * @exception  MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @throws org.apache.commons.math.exception.OutOfRangeException
      * if the indices are not valid.
      * @see #walkInRowOrder(FieldMatrixChangingVisitor)
@@ -551,7 +554,8 @@ public interface FieldMatrix<T extends FieldElement<T>> extends AnyMatrix {
      * @param endRow Final row index (inclusive)
      * @param startColumn Initial column index
      * @param endColumn Final column index
-     * @exception  MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @throws org.apache.commons.math.exception.OutOfRangeException
      * if the indices are not valid.
      * @see #walkInRowOrder(FieldMatrixChangingVisitor)
@@ -577,7 +581,8 @@ public interface FieldMatrix<T extends FieldElement<T>> extends AnyMatrix {
      * of a column from top to bottom before going to the topmost element
      * of the next column.</p>
      * @param visitor visitor used to process all matrix entries
-     * @exception  MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @see #walkInRowOrder(FieldMatrixChangingVisitor)
      * @see #walkInRowOrder(FieldMatrixPreservingVisitor)
      * @see #walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
@@ -600,7 +605,8 @@ public interface FieldMatrix<T extends FieldElement<T>> extends AnyMatrix {
      * of a column from top to bottom before going to the topmost element
      * of the next column.</p>
      * @param visitor visitor used to process all matrix entries
-     * @exception  MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @see #walkInRowOrder(FieldMatrixChangingVisitor)
      * @see #walkInRowOrder(FieldMatrixPreservingVisitor)
      * @see #walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
@@ -627,7 +633,8 @@ public interface FieldMatrix<T extends FieldElement<T>> extends AnyMatrix {
      * @param endRow Final row index (inclusive)
      * @param startColumn Initial column index
      * @param endColumn Final column index
-     * @exception  MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @throws org.apache.commons.math.exception.OutOfRangeException
      * if the indices are not valid.
      * @see #walkInRowOrder(FieldMatrixChangingVisitor)
@@ -657,7 +664,8 @@ public interface FieldMatrix<T extends FieldElement<T>> extends AnyMatrix {
      * @param endRow Final row index (inclusive)
      * @param startColumn Initial column index
      * @param endColumn Final column index
-     * @exception  MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @throws org.apache.commons.math.exception.OutOfRangeException
      * if the indices are not valid.
      * @see #walkInRowOrder(FieldMatrixChangingVisitor)
@@ -682,7 +690,8 @@ public interface FieldMatrix<T extends FieldElement<T>> extends AnyMatrix {
      * <p>The fastest walking order depends on the exact matrix class. It may be
      * different from traditional row or column orders.</p>
      * @param visitor visitor used to process all matrix entries
-     * @exception  MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @see #walkInRowOrder(FieldMatrixChangingVisitor)
      * @see #walkInRowOrder(FieldMatrixPreservingVisitor)
      * @see #walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
@@ -704,7 +713,8 @@ public interface FieldMatrix<T extends FieldElement<T>> extends AnyMatrix {
      * <p>The fastest walking order depends on the exact matrix class. It may be
      * different from traditional row or column orders.</p>
      * @param visitor visitor used to process all matrix entries
-     * @exception  MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @see #walkInRowOrder(FieldMatrixChangingVisitor)
      * @see #walkInRowOrder(FieldMatrixPreservingVisitor)
      * @see #walkInRowOrder(FieldMatrixChangingVisitor, int, int, int, int)
@@ -730,7 +740,8 @@ public interface FieldMatrix<T extends FieldElement<T>> extends AnyMatrix {
      * @param endRow Final row index (inclusive)
      * @param startColumn Initial column index
      * @param endColumn Final column index (inclusive)
-     * @exception  MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @throws org.apache.commons.math.exception.OutOfRangeException
      * if the indices are not valid.
      * @see #walkInRowOrder(FieldMatrixChangingVisitor)
@@ -759,7 +770,8 @@ public interface FieldMatrix<T extends FieldElement<T>> extends AnyMatrix {
      * @param endRow Final row index (inclusive)
      * @param startColumn Initial column index
      * @param endColumn Final column index (inclusive)
-     * @exception  MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @throws org.apache.commons.math.exception.OutOfRangeException
      * if the indices are not valid.
      * @see #walkInRowOrder(FieldMatrixChangingVisitor)
diff --git a/src/main/java/org/apache/commons/math/linear/FieldMatrixChangingVisitor.java b/src/main/java/org/apache/commons/math/linear/FieldMatrixChangingVisitor.java
index 57886b37d..bb3e1a212 100644
--- a/src/main/java/org/apache/commons/math/linear/FieldMatrixChangingVisitor.java
+++ b/src/main/java/org/apache/commons/math/linear/FieldMatrixChangingVisitor.java
@@ -47,10 +47,10 @@ public interface FieldMatrixChangingVisitor<T extends FieldElement<?>> {
      * @param column column index of the entry
      * @param value current value of the entry
      * @return the new value to be set for the entry
-     * @throws MatrixVisitorException if something wrong occurs
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      */
-    T visit(int row, int column, T value)
-        throws MatrixVisitorException;
+    T visit(int row, int column, T value);
 
     /**
      * End visiting a matrix.
@@ -58,5 +58,4 @@ public interface FieldMatrixChangingVisitor<T extends FieldElement<?>> {
      * @return the value that the <code>walkInXxxOrder</code> must return
      */
     T end();
-
 }
diff --git a/src/main/java/org/apache/commons/math/linear/FieldMatrixPreservingVisitor.java b/src/main/java/org/apache/commons/math/linear/FieldMatrixPreservingVisitor.java
index b408462f4..0f30fe0ad 100644
--- a/src/main/java/org/apache/commons/math/linear/FieldMatrixPreservingVisitor.java
+++ b/src/main/java/org/apache/commons/math/linear/FieldMatrixPreservingVisitor.java
@@ -46,10 +46,10 @@ public interface FieldMatrixPreservingVisitor<T extends FieldElement<?>> {
      * @param row row index of the entry
      * @param column column index of the entry
      * @param value current value of the entry
-     * @throws MatrixVisitorException if something wrong occurs
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      */
-    void visit(int row, int column, T value)
-        throws MatrixVisitorException;
+    void visit(int row, int column, T value);
 
     /**
      * End visiting a matrix.
@@ -57,5 +57,4 @@ public interface FieldMatrixPreservingVisitor<T extends FieldElement<?>> {
      * @return the value that the <code>walkInXxxOrder</code> must return
      */
     T end();
-
 }
diff --git a/src/main/java/org/apache/commons/math/linear/MatrixVisitorException.java b/src/main/java/org/apache/commons/math/linear/MatrixVisitorException.java
deleted file mode 100644
index 6d216b856..000000000
--- a/src/main/java/org/apache/commons/math/linear/MatrixVisitorException.java
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.commons.math.linear;
-
-import org.apache.commons.math.MathRuntimeException;
-import org.apache.commons.math.exception.util.Localizable;
-
-/**
- * Thrown when a visitor encounters an error while processing a matrix entry.
- * @version $Revision$ $Date$
- */
-public class MatrixVisitorException extends MathRuntimeException {
-
-    /** Serializable version identifier */
-    private static final long serialVersionUID = 3814333035048617048L;
-
-    /**
-     * Constructs a new instance with specified formatted detail message.
-     * @param pattern format specifier
-     * @param arguments format arguments
-     * @deprecated as of 2.2 replaced by {@link #MatrixVisitorException(Localizable, Object...)}
-     */
-    @Deprecated
-    public MatrixVisitorException(final String pattern, final Object[] arguments) {
-      super(pattern, arguments);
-    }
-
-    /**
-     * Constructs a new instance with specified formatted detail message.
-     * @param pattern format specifier
-     * @param arguments format arguments
-     * @since 2.2
-     */
-    public MatrixVisitorException(final Localizable pattern, final Object[] arguments) {
-      super(pattern, arguments);
-    }
-
-}
diff --git a/src/main/java/org/apache/commons/math/linear/RealMatrix.java b/src/main/java/org/apache/commons/math/linear/RealMatrix.java
index 491dbce89..72760ad06 100644
--- a/src/main/java/org/apache/commons/math/linear/RealMatrix.java
+++ b/src/main/java/org/apache/commons/math/linear/RealMatrix.java
@@ -476,7 +476,8 @@ public interface RealMatrix extends AnyMatrix {
      * of a row from left to right before going to the leftmost element
      * of the next row.</p>
      * @param visitor visitor used to process all matrix entries
-     * @throws MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @see #walkInRowOrder(RealMatrixPreservingVisitor)
      * @see #walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
      * @see #walkInRowOrder(RealMatrixPreservingVisitor, int, int, int, int)
@@ -499,7 +500,8 @@ public interface RealMatrix extends AnyMatrix {
      * of a row from left to right before going to the leftmost element
      * of the next row.</p>
      * @param visitor visitor used to process all matrix entries
-     * @throws MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @see #walkInRowOrder(RealMatrixChangingVisitor)
      * @see #walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
      * @see #walkInRowOrder(RealMatrixPreservingVisitor, int, int, int, int)
@@ -526,7 +528,8 @@ public interface RealMatrix extends AnyMatrix {
      * @param endRow Final row index (inclusive)
      * @param startColumn Initial column index
      * @param endColumn Final column index
-     * @throws MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @throws org.apache.commons.math.exception.OutOfRangeException if
      * the indices are not valid.
      * @see #walkInRowOrder(RealMatrixChangingVisitor)
@@ -556,7 +559,8 @@ public interface RealMatrix extends AnyMatrix {
      * @param endRow Final row index (inclusive)
      * @param startColumn Initial column index
      * @param endColumn Final column index
-     * @throws MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @throws org.apache.commons.math.exception.OutOfRangeException if
      * the indices are not valid.
      * @see #walkInRowOrder(RealMatrixChangingVisitor)
@@ -582,7 +586,8 @@ public interface RealMatrix extends AnyMatrix {
      * of a column from top to bottom before going to the topmost element
      * of the next column.</p>
      * @param visitor visitor used to process all matrix entries
-     * @throws MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @see #walkInRowOrder(RealMatrixChangingVisitor)
      * @see #walkInRowOrder(RealMatrixPreservingVisitor)
      * @see #walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
@@ -605,7 +610,8 @@ public interface RealMatrix extends AnyMatrix {
      * of a column from top to bottom before going to the topmost element
      * of the next column.</p>
      * @param visitor visitor used to process all matrix entries
-     * @throws MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @see #walkInRowOrder(RealMatrixChangingVisitor)
      * @see #walkInRowOrder(RealMatrixPreservingVisitor)
      * @see #walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
@@ -632,7 +638,8 @@ public interface RealMatrix extends AnyMatrix {
      * @param endRow Final row index (inclusive)
      * @param startColumn Initial column index
      * @param endColumn Final column index
-     * @throws MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @throws org.apache.commons.math.exception.OutOfRangeException if
      * the indices are not valid.
      * @see #walkInRowOrder(RealMatrixChangingVisitor)
@@ -662,7 +669,8 @@ public interface RealMatrix extends AnyMatrix {
      * @param endRow Final row index (inclusive)
      * @param startColumn Initial column index
      * @param endColumn Final column index
-     * @throws MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @throws org.apache.commons.math.exception.OutOfRangeException if
      * the indices are not valid.
      * @see #walkInRowOrder(RealMatrixChangingVisitor)
@@ -687,7 +695,8 @@ public interface RealMatrix extends AnyMatrix {
      * <p>The fastest walking order depends on the exact matrix class. It may be
      * different from traditional row or column orders.</p>
      * @param visitor visitor used to process all matrix entries
-     * @throws MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @see #walkInRowOrder(RealMatrixChangingVisitor)
      * @see #walkInRowOrder(RealMatrixPreservingVisitor)
      * @see #walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
@@ -709,7 +718,8 @@ public interface RealMatrix extends AnyMatrix {
      * <p>The fastest walking order depends on the exact matrix class. It may be
      * different from traditional row or column orders.</p>
      * @param visitor visitor used to process all matrix entries
-     * @throws MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @see #walkInRowOrder(RealMatrixChangingVisitor)
      * @see #walkInRowOrder(RealMatrixPreservingVisitor)
      * @see #walkInRowOrder(RealMatrixChangingVisitor, int, int, int, int)
@@ -735,7 +745,8 @@ public interface RealMatrix extends AnyMatrix {
      * @param endRow Final row index (inclusive)
      * @param startColumn Initial column index
      * @param endColumn Final column index (inclusive)
-     * @throws MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @throws org.apache.commons.math.exception.OutOfRangeException if
      * the indices are not valid.
      * @see #walkInRowOrder(RealMatrixChangingVisitor)
@@ -764,7 +775,8 @@ public interface RealMatrix extends AnyMatrix {
      * @param endRow Final row index (inclusive)
      * @param startColumn Initial column index
      * @param endColumn Final column index (inclusive)
-     * @throws MatrixVisitorException if the visitor cannot process an entry
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      * @throws org.apache.commons.math.exception.OutOfRangeException if the
      * indices are not valid.
      * @see #walkInRowOrder(RealMatrixChangingVisitor)
diff --git a/src/main/java/org/apache/commons/math/linear/RealMatrixChangingVisitor.java b/src/main/java/org/apache/commons/math/linear/RealMatrixChangingVisitor.java
index 6001fddaf..f0a883db6 100644
--- a/src/main/java/org/apache/commons/math/linear/RealMatrixChangingVisitor.java
+++ b/src/main/java/org/apache/commons/math/linear/RealMatrixChangingVisitor.java
@@ -45,10 +45,10 @@ public interface RealMatrixChangingVisitor {
      * @param column column index of the entry
      * @param value current value of the entry
      * @return the new value to be set for the entry
-     * @throws MatrixVisitorException if something wrong occurs
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      */
-    double visit(int row, int column, double value)
-        throws MatrixVisitorException;
+    double visit(int row, int column, double value);
 
     /**
      * End visiting a matrix.
@@ -56,5 +56,4 @@ public interface RealMatrixChangingVisitor {
      * @return the value that the <code>walkInXxxOrder</code> must return
      */
     double end();
-
 }
diff --git a/src/main/java/org/apache/commons/math/linear/RealMatrixPreservingVisitor.java b/src/main/java/org/apache/commons/math/linear/RealMatrixPreservingVisitor.java
index 1e4b09f0b..dfeb63aa7 100644
--- a/src/main/java/org/apache/commons/math/linear/RealMatrixPreservingVisitor.java
+++ b/src/main/java/org/apache/commons/math/linear/RealMatrixPreservingVisitor.java
@@ -44,10 +44,10 @@ public interface RealMatrixPreservingVisitor {
      * @param row row index of the entry
      * @param column column index of the entry
      * @param value current value of the entry
-     * @throws MatrixVisitorException if something wrong occurs
+     * @throws org.apache.commons.math.exception.MathUserException if the visitor
+     * cannot process an entry.
      */
-    void visit(int row, int column, double value)
-        throws MatrixVisitorException;
+    void visit(int row, int column, double value);
 
     /**
      * End visiting a matrix.
@@ -55,5 +55,4 @@ public interface RealMatrixPreservingVisitor {
      * @return the value that the <code>walkInXxxOrder</code> must return
      */
     double end();
-
 }
diff --git a/src/main/java/org/apache/commons/math/ode/nonstiff/AdamsMoultonIntegrator.java b/src/main/java/org/apache/commons/math/ode/nonstiff/AdamsMoultonIntegrator.java
index 0208bc317..dcab956ed 100644
--- a/src/main/java/org/apache/commons/math/ode/nonstiff/AdamsMoultonIntegrator.java
+++ b/src/main/java/org/apache/commons/math/ode/nonstiff/AdamsMoultonIntegrator.java
@@ -20,7 +20,6 @@ package org.apache.commons.math.ode.nonstiff;
 import java.util.Arrays;
 
 import org.apache.commons.math.linear.Array2DRowRealMatrix;
-import org.apache.commons.math.linear.MatrixVisitorException;
 import org.apache.commons.math.linear.RealMatrixPreservingVisitor;
 import org.apache.commons.math.ode.DerivativeException;
 import org.apache.commons.math.ode.FirstOrderDifferentialEquations;
@@ -413,8 +412,7 @@ public class AdamsMoultonIntegrator extends AdamsIntegrator {
         }
 
         /** {@inheritDoc} */
-        public void visit(int row, int column, double value)
-            throws MatrixVisitorException {
+        public void visit(int row, int column, double value) {
             if ((row & 0x1) == 0) {
                 after[column] -= value;
             } else {
diff --git a/src/test/java/org/apache/commons/math/linear/QRDecompositionImplTest.java b/src/test/java/org/apache/commons/math/linear/QRDecompositionImplTest.java
index 27b90412a..43785e3ea 100644
--- a/src/test/java/org/apache/commons/math/linear/QRDecompositionImplTest.java
+++ b/src/test/java/org/apache/commons/math/linear/QRDecompositionImplTest.java
@@ -240,8 +240,7 @@ public class QRDecompositionImplTest extends TestCase {
         RealMatrix m = MatrixUtils.createRealMatrix(rows, columns);
         m.walkInOptimizedOrder(new DefaultRealMatrixChangingVisitor(){
             @Override
-            public double visit(int row, int column, double value)
-                throws MatrixVisitorException {
+            public double visit(int row, int column, double value) {
                 return 2.0 * r.nextDouble() - 1.0;
             }
         });
diff --git a/src/test/java/org/apache/commons/math/linear/QRSolverTest.java b/src/test/java/org/apache/commons/math/linear/QRSolverTest.java
index b5ad23e97..bf645dd43 100644
--- a/src/test/java/org/apache/commons/math/linear/QRSolverTest.java
+++ b/src/test/java/org/apache/commons/math/linear/QRSolverTest.java
@@ -203,8 +203,7 @@ public class QRSolverTest extends TestCase {
         RealMatrix m = MatrixUtils.createRealMatrix(rows, columns);
         m.walkInOptimizedOrder(new DefaultRealMatrixChangingVisitor(){
             @Override
-            public double visit(int row, int column, double value)
-                throws MatrixVisitorException {
+            public double visit(int row, int column, double value) {
                 return 2.0 * r.nextDouble() - 1.0;
             }
         });
diff --git a/src/test/java/org/apache/commons/math/stat/regression/OLSMultipleLinearRegressionTest.java b/src/test/java/org/apache/commons/math/stat/regression/OLSMultipleLinearRegressionTest.java
index 88739e2c3..52d9d6589 100644
--- a/src/test/java/org/apache/commons/math/stat/regression/OLSMultipleLinearRegressionTest.java
+++ b/src/test/java/org/apache/commons/math/stat/regression/OLSMultipleLinearRegressionTest.java
@@ -21,7 +21,6 @@ import static org.junit.Assert.assertEquals;
 import org.apache.commons.math.TestUtils;
 import org.apache.commons.math.linear.DefaultRealMatrixChangingVisitor;
 import org.apache.commons.math.linear.MatrixUtils;
-import org.apache.commons.math.linear.MatrixVisitorException;
 import org.apache.commons.math.linear.RealMatrix;
 import org.apache.commons.math.linear.Array2DRowRealMatrix;
 import org.apache.commons.math.linear.RealVector;
@@ -88,8 +87,7 @@ public class OLSMultipleLinearRegressionTest extends MultipleLinearRegressionAbs
         RealMatrix referenceVariance = new Array2DRowRealMatrix(s.length, s.length);
         referenceVariance.walkInOptimizedOrder(new DefaultRealMatrixChangingVisitor() {
             @Override
-            public double visit(int row, int column, double value)
-                throws MatrixVisitorException {
+            public double visit(int row, int column, double value) {
                 if (row == 0) {
                     return s[column];
                 }