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commit ba2a1c2434add14499adb16a8c46c3063835d85e
Author: Gilles Sadowski <gillese...@gmail.com>
AuthorDate: Tue Jun 1 17:31:40 2021 +0200
Utility class moved to module "commons-math-legacy-core".
---
.../src/main/java/org/apache/commons/math4/legacy/core}/Pair.java | 2 +-
.../test/java/org/apache/commons/math4/legacy/core}/PairTest.java | 2 +-
.../math4/legacy/analysis/integration/gauss/BaseRuleFactory.java | 2 +-
.../math4/legacy/analysis/integration/gauss/GaussIntegrator.java | 2 +-
.../legacy/analysis/integration/gauss/GaussIntegratorFactory.java | 2 +-
.../math4/legacy/analysis/integration/gauss/HermiteRuleFactory.java | 2 +-
.../legacy/analysis/integration/gauss/LaguerreRuleFactory.java | 2 +-
.../integration/gauss/LegendreHighPrecisionRuleFactory.java | 2 +-
.../legacy/analysis/integration/gauss/LegendreRuleFactory.java | 2 +-
.../legacy/analysis/integration/gauss/SymmetricGaussIntegrator.java | 2 +-
.../commons/math4/legacy/distribution/EnumeratedDistribution.java | 2 +-
.../math4/legacy/distribution/EnumeratedIntegerDistribution.java | 2 +-
.../math4/legacy/distribution/EnumeratedRealDistribution.java | 2 +-
.../legacy/distribution/MixtureMultivariateNormalDistribution.java | 2 +-
.../legacy/distribution/MixtureMultivariateRealDistribution.java | 2 +-
.../fitting/MultivariateNormalMixtureExpectationMaximization.java | 2 +-
.../DifferentiatorVectorMultivariateJacobianFunction.java | 2 +-
.../math4/legacy/fitting/leastsquares/GaussNewtonOptimizer.java | 2 +-
.../math4/legacy/fitting/leastsquares/LeastSquaresFactory.java | 2 +-
.../legacy/fitting/leastsquares/MultivariateJacobianFunction.java | 2 +-
.../math4/legacy/ml/clustering/MiniBatchKMeansClusterer.java | 2 +-
.../java/org/apache/commons/math4/legacy/optim/PointValuePair.java | 2 +-
.../org/apache/commons/math4/legacy/optim/PointVectorValuePair.java | 2 +-
.../org/apache/commons/math4/legacy/optim/SimplePointChecker.java | 2 +-
.../commons/math4/legacy/stat/correlation/KendallsCorrelation.java | 2 +-
.../legacy/analysis/integration/gauss/BaseRuleFactoryTest.java | 2 +-
.../legacy/analysis/integration/gauss/GaussIntegratorTest.java | 2 +-
.../math4/legacy/distribution/EnumeratedRealDistributionTest.java | 2 +-
.../distribution/MixtureMultivariateNormalDistributionTest.java | 2 +-
.../MultivariateNormalMixtureExpectationMaximizationTest.java | 2 +-
.../commons/math4/legacy/field/linalg/FP64FieldDenseMatrixTest.java | 6 +++---
.../leastsquares/AbstractLeastSquaresOptimizerAbstractTest.java | 2 +-
.../commons/math4/legacy/fitting/leastsquares/EvaluationTest.java | 2 +-
33 files changed, 35 insertions(+), 35 deletions(-)
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/util/Pair.java
b/commons-math-legacy-core/src/main/java/org/apache/commons/math4/legacy/core/Pair.java
similarity index 98%
rename from
commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/util/Pair.java
rename to
commons-math-legacy-core/src/main/java/org/apache/commons/math4/legacy/core/Pair.java
index ea6a138..8e5620d 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/util/Pair.java
+++
b/commons-math-legacy-core/src/main/java/org/apache/commons/math4/legacy/core/Pair.java
@@ -14,7 +14,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-package org.apache.commons.math4.legacy.util;
+package org.apache.commons.math4.legacy.core;
/**
* Generic pair.
diff --git
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/util/PairTest.java
b/commons-math-legacy-core/src/test/java/org/apache/commons/math4/legacy/core/PairTest.java
similarity index 98%
rename from
commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/util/PairTest.java
rename to
commons-math-legacy-core/src/test/java/org/apache/commons/math4/legacy/core/PairTest.java
index 347a008..316227f 100644
---
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/util/PairTest.java
+++
b/commons-math-legacy-core/src/test/java/org/apache/commons/math4/legacy/core/PairTest.java
@@ -11,7 +11,7 @@
* KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
-package org.apache.commons.math4.legacy.util;
+package org.apache.commons.math4.legacy.core;
import org.junit.Assert;
import org.junit.Test;
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/BaseRuleFactory.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/BaseRuleFactory.java
index 4c479bc..f36fdbd 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/BaseRuleFactory.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/BaseRuleFactory.java
@@ -22,7 +22,7 @@ import java.util.TreeMap;
import org.apache.commons.math4.legacy.exception.DimensionMismatchException;
import org.apache.commons.math4.legacy.exception.NotStrictlyPositiveException;
import org.apache.commons.math4.legacy.exception.util.LocalizedFormats;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* Base class for rules that determines the integration nodes and their
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/GaussIntegrator.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/GaussIntegrator.java
index 616b48b..8494a87 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/GaussIntegrator.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/GaussIntegrator.java
@@ -19,7 +19,7 @@ package
org.apache.commons.math4.legacy.analysis.integration.gauss;
import org.apache.commons.math4.legacy.analysis.UnivariateFunction;
import org.apache.commons.math4.legacy.exception.DimensionMismatchException;
import org.apache.commons.math4.legacy.core.MathArrays;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* Class that implements the Gaussian rule for
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/GaussIntegratorFactory.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/GaussIntegratorFactory.java
index 21e8783..0d65941 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/GaussIntegratorFactory.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/GaussIntegratorFactory.java
@@ -16,7 +16,7 @@
*/
package org.apache.commons.math4.legacy.analysis.integration.gauss;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
import java.math.BigDecimal;
/**
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/HermiteRuleFactory.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/HermiteRuleFactory.java
index edc5a94..fddf695 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/HermiteRuleFactory.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/HermiteRuleFactory.java
@@ -17,7 +17,7 @@
package org.apache.commons.math4.legacy.analysis.integration.gauss;
import org.apache.commons.math4.legacy.core.jdkmath.AccurateMath;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* Factory that creates a
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/LaguerreRuleFactory.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/LaguerreRuleFactory.java
index 9b28a31..76fd2c3 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/LaguerreRuleFactory.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/LaguerreRuleFactory.java
@@ -23,7 +23,7 @@ import
org.apache.commons.math4.legacy.analysis.polynomials.PolynomialsUtils;
import org.apache.commons.math4.legacy.linear.EigenDecomposition;
import org.apache.commons.math4.legacy.linear.MatrixUtils;
import org.apache.commons.math4.legacy.linear.RealMatrix;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* Factory that creates Gauss-type quadrature rule using Laguerre polynomials.
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
index db99600..7ce9734 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/LegendreHighPrecisionRuleFactory.java
@@ -19,7 +19,7 @@ package
org.apache.commons.math4.legacy.analysis.integration.gauss;
import java.math.BigDecimal;
import java.math.MathContext;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* Factory that creates Gauss-type quadrature rule using Legendre polynomials.
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/LegendreRuleFactory.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/LegendreRuleFactory.java
index a1548bd..b4aecba 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/LegendreRuleFactory.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/LegendreRuleFactory.java
@@ -16,7 +16,7 @@
*/
package org.apache.commons.math4.legacy.analysis.integration.gauss;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* Factory that creates Gauss-type quadrature rule using Legendre polynomials.
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/SymmetricGaussIntegrator.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/SymmetricGaussIntegrator.java
index a441e0c..b12177b 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/SymmetricGaussIntegrator.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/analysis/integration/gauss/SymmetricGaussIntegrator.java
@@ -17,7 +17,7 @@
package org.apache.commons.math4.legacy.analysis.integration.gauss;
import org.apache.commons.math4.legacy.analysis.UnivariateFunction;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* This class's implements {@link #integrate(UnivariateFunction) integrate}
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/EnumeratedDistribution.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/EnumeratedDistribution.java
index a7d4d93..d7dc9d8 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/EnumeratedDistribution.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/EnumeratedDistribution.java
@@ -31,7 +31,7 @@ import
org.apache.commons.math4.legacy.exception.util.LocalizedFormats;
import org.apache.commons.rng.UniformRandomProvider;
import org.apache.commons.rng.sampling.DiscreteProbabilityCollectionSampler;
import org.apache.commons.math4.legacy.core.MathArrays;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* <p>A generic implementation of a
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/EnumeratedIntegerDistribution.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/EnumeratedIntegerDistribution.java
index c6447d8..52e0534 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/EnumeratedIntegerDistribution.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/EnumeratedIntegerDistribution.java
@@ -29,7 +29,7 @@ import
org.apache.commons.math4.legacy.exception.NotANumberException;
import org.apache.commons.math4.legacy.exception.NotFiniteNumberException;
import org.apache.commons.math4.legacy.exception.NotPositiveException;
import org.apache.commons.rng.UniformRandomProvider;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* <p>Implementation of an integer-valued {@link EnumeratedDistribution}.</p>
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/EnumeratedRealDistribution.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/EnumeratedRealDistribution.java
index 4ec81a8..bf71261 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/EnumeratedRealDistribution.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/EnumeratedRealDistribution.java
@@ -31,7 +31,7 @@ import
org.apache.commons.math4.legacy.exception.NotFiniteNumberException;
import org.apache.commons.math4.legacy.exception.NotPositiveException;
import org.apache.commons.math4.legacy.exception.OutOfRangeException;
import org.apache.commons.rng.UniformRandomProvider;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* <p>Implementation of a real-valued {@link EnumeratedDistribution}.
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/MixtureMultivariateNormalDistribution.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/MixtureMultivariateNormalDistribution.java
index 487a5a4..b93fdc3 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/MixtureMultivariateNormalDistribution.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/MixtureMultivariateNormalDistribution.java
@@ -21,7 +21,7 @@ import java.util.List;
import org.apache.commons.math4.legacy.exception.DimensionMismatchException;
import org.apache.commons.math4.legacy.exception.NotPositiveException;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* Multivariate normal mixture distribution.
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/MixtureMultivariateRealDistribution.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/MixtureMultivariateRealDistribution.java
index e05cc40..086df0a 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/MixtureMultivariateRealDistribution.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/MixtureMultivariateRealDistribution.java
@@ -24,7 +24,7 @@ import
org.apache.commons.math4.legacy.exception.MathArithmeticException;
import org.apache.commons.math4.legacy.exception.NotPositiveException;
import org.apache.commons.math4.legacy.exception.util.LocalizedFormats;
import org.apache.commons.rng.UniformRandomProvider;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* Class for representing <a href="http://en.wikipedia.org/wiki/Mixture_model";>
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/fitting/MultivariateNormalMixtureExpectationMaximization.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/fitting/MultivariateNormalMixtureExpectationMaximization.java
index c5b2c3a..450a1ba 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/fitting/MultivariateNormalMixtureExpectationMaximization.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/distribution/fitting/MultivariateNormalMixtureExpectationMaximization.java
@@ -34,7 +34,7 @@ import
org.apache.commons.math4.legacy.linear.SingularMatrixException;
import org.apache.commons.math4.legacy.stat.correlation.Covariance;
import org.apache.commons.math4.legacy.core.jdkmath.AccurateMath;
import org.apache.commons.math4.legacy.core.MathArrays;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* Expectation-Maximization algorithm for fitting the parameters of
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/DifferentiatorVectorMultivariateJacobianFunction.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/DifferentiatorVectorMultivariateJacobianFunction.java
index ad9de46..34ce3bb 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/DifferentiatorVectorMultivariateJacobianFunction.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/DifferentiatorVectorMultivariateJacobianFunction.java
@@ -24,7 +24,7 @@ import
org.apache.commons.math4.legacy.linear.Array2DRowRealMatrix;
import org.apache.commons.math4.legacy.linear.ArrayRealVector;
import org.apache.commons.math4.legacy.linear.RealMatrix;
import org.apache.commons.math4.legacy.linear.RealVector;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
import java.util.Arrays;
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/GaussNewtonOptimizer.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/GaussNewtonOptimizer.java
index f052a4b..a4d38db 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/GaussNewtonOptimizer.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/GaussNewtonOptimizer.java
@@ -32,7 +32,7 @@ import
org.apache.commons.math4.legacy.linear.SingularMatrixException;
import org.apache.commons.math4.legacy.linear.SingularValueDecomposition;
import org.apache.commons.math4.legacy.optim.ConvergenceChecker;
import org.apache.commons.math4.legacy.core.IntegerSequence;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* Gauss-Newton least-squares solver.
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/LeastSquaresFactory.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/LeastSquaresFactory.java
index 9283bae..9400e8b 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/LeastSquaresFactory.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/LeastSquaresFactory.java
@@ -32,7 +32,7 @@ import
org.apache.commons.math4.legacy.optim.ConvergenceChecker;
import org.apache.commons.math4.legacy.optim.PointVectorValuePair;
import org.apache.commons.math4.legacy.core.jdkmath.AccurateMath;
import org.apache.commons.math4.legacy.core.IntegerSequence;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* A Factory for creating {@link LeastSquaresProblem}s.
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/MultivariateJacobianFunction.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/MultivariateJacobianFunction.java
index 7a8cbe1..9926893 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/MultivariateJacobianFunction.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/fitting/leastsquares/MultivariateJacobianFunction.java
@@ -18,7 +18,7 @@ package org.apache.commons.math4.legacy.fitting.leastsquares;
import org.apache.commons.math4.legacy.linear.RealMatrix;
import org.apache.commons.math4.legacy.linear.RealVector;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* A interface for functions that compute a vector of values and can compute
their
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/ml/clustering/MiniBatchKMeansClusterer.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/ml/clustering/MiniBatchKMeansClusterer.java
index a18b892..73ae3db 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/ml/clustering/MiniBatchKMeansClusterer.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/ml/clustering/MiniBatchKMeansClusterer.java
@@ -20,7 +20,7 @@ package org.apache.commons.math4.legacy.ml.clustering;
import org.apache.commons.math4.legacy.exception.NullArgumentException;
import org.apache.commons.math4.legacy.exception.NumberIsTooSmallException;
import org.apache.commons.math4.legacy.ml.distance.DistanceMeasure;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
import org.apache.commons.rng.UniformRandomProvider;
import org.apache.commons.rng.sampling.ListSampler;
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/optim/PointValuePair.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/optim/PointValuePair.java
index 112604c..6019e46 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/optim/PointValuePair.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/optim/PointValuePair.java
@@ -18,7 +18,7 @@ package org.apache.commons.math4.legacy.optim;
import java.io.Serializable;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* This class holds a point and the value of an objective function at
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/optim/PointVectorValuePair.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/optim/PointVectorValuePair.java
index 1519421..f77532d 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/optim/PointVectorValuePair.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/optim/PointVectorValuePair.java
@@ -18,7 +18,7 @@ package org.apache.commons.math4.legacy.optim;
import java.io.Serializable;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* This class holds a point and the vectorial value of an objective function at
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/optim/SimplePointChecker.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/optim/SimplePointChecker.java
index d6125d1..7906dda 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/optim/SimplePointChecker.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/optim/SimplePointChecker.java
@@ -18,7 +18,7 @@ package org.apache.commons.math4.legacy.optim;
import org.apache.commons.math4.legacy.exception.NotStrictlyPositiveException;
import org.apache.commons.math4.legacy.core.jdkmath.AccurateMath;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* Simple implementation of the {@link ConvergenceChecker} interface using
diff --git
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/stat/correlation/KendallsCorrelation.java
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/stat/correlation/KendallsCorrelation.java
index 7947423..ecc126d 100644
---
a/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/stat/correlation/KendallsCorrelation.java
+++
b/commons-math-legacy/src/main/java/org/apache/commons/math4/legacy/stat/correlation/KendallsCorrelation.java
@@ -24,7 +24,7 @@ import org.apache.commons.math4.legacy.linear.BlockRealMatrix;
import org.apache.commons.math4.legacy.linear.MatrixUtils;
import org.apache.commons.math4.legacy.linear.RealMatrix;
import org.apache.commons.math4.legacy.core.jdkmath.AccurateMath;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
/**
* Implementation of Kendall's Tau-b rank correlation.
diff --git
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/analysis/integration/gauss/BaseRuleFactoryTest.java
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/analysis/integration/gauss/BaseRuleFactoryTest.java
index ff42f92..42948ea 100644
---
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/analysis/integration/gauss/BaseRuleFactoryTest.java
+++
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/analysis/integration/gauss/BaseRuleFactoryTest.java
@@ -26,7 +26,7 @@ import java.util.concurrent.Future;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.atomic.AtomicInteger;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
import org.junit.Test;
import org.junit.Assert;
diff --git
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/analysis/integration/gauss/GaussIntegratorTest.java
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/analysis/integration/gauss/GaussIntegratorTest.java
index a815ecd..c0779a8 100644
---
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/analysis/integration/gauss/GaussIntegratorTest.java
+++
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/analysis/integration/gauss/GaussIntegratorTest.java
@@ -18,7 +18,7 @@ package
org.apache.commons.math4.legacy.analysis.integration.gauss;
import org.apache.commons.math4.legacy.analysis.UnivariateFunction;
import org.apache.commons.math4.legacy.analysis.function.Constant;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
import org.junit.Test;
import org.junit.Assert;
diff --git
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/distribution/EnumeratedRealDistributionTest.java
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/distribution/EnumeratedRealDistributionTest.java
index 9c67830..96414d1 100644
---
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/distribution/EnumeratedRealDistributionTest.java
+++
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/distribution/EnumeratedRealDistributionTest.java
@@ -28,7 +28,7 @@ import
org.apache.commons.math4.legacy.exception.NotANumberException;
import org.apache.commons.math4.legacy.exception.NotFiniteNumberException;
import org.apache.commons.math4.legacy.exception.NotPositiveException;
import org.apache.commons.math4.legacy.core.jdkmath.AccurateMath;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
import org.apache.commons.rng.UniformRandomProvider;
import org.apache.commons.rng.simple.RandomSource;
import org.junit.Assert;
diff --git
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/distribution/MixtureMultivariateNormalDistributionTest.java
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/distribution/MixtureMultivariateNormalDistributionTest.java
index b64c37a..d50c159 100644
---
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/distribution/MixtureMultivariateNormalDistributionTest.java
+++
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/distribution/MixtureMultivariateNormalDistributionTest.java
@@ -21,7 +21,7 @@ import java.util.List;
import org.apache.commons.math4.legacy.exception.MathArithmeticException;
import org.apache.commons.math4.legacy.exception.NotPositiveException;
import org.apache.commons.rng.simple.RandomSource;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
import org.junit.Assert;
import org.junit.Test;
import org.junit.Ignore;
diff --git
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/distribution/fitting/MultivariateNormalMixtureExpectationMaximizationTest.java
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/distribution/fitting/MultivariateNormalMixtureExpectationMaximizationTest.java
index 6fe5b56..d8e7291 100644
---
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/distribution/fitting/MultivariateNormalMixtureExpectationMaximizationTest.java
+++
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/distribution/fitting/MultivariateNormalMixtureExpectationMaximizationTest.java
@@ -28,7 +28,7 @@ import
org.apache.commons.math4.legacy.exception.NotStrictlyPositiveException;
import org.apache.commons.math4.legacy.exception.NumberIsTooSmallException;
import org.apache.commons.math4.legacy.linear.Array2DRowRealMatrix;
import org.apache.commons.math4.legacy.linear.RealMatrix;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
import org.junit.Assert;
import org.junit.Test;
diff --git
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/field/linalg/FP64FieldDenseMatrixTest.java
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/field/linalg/FP64FieldDenseMatrixTest.java
index 9b99518..4df3fa4 100644
---
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/field/linalg/FP64FieldDenseMatrixTest.java
+++
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/field/linalg/FP64FieldDenseMatrixTest.java
@@ -20,9 +20,9 @@ import org.junit.Assert;
import org.junit.Test;
import org.apache.commons.numbers.field.FP64;
import org.apache.commons.numbers.field.FP64Field;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.linear.Array2DRowRealMatrix;
-import org.apache.commons.math3.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
+import org.apache.commons.math4.legacy.linear.RealMatrix;
+import org.apache.commons.math4.legacy.linear.Array2DRowRealMatrix;
/**
* Tests for {@link FieldDenseMatrix} (using {@link FP64} as field elements).
diff --git
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/fitting/leastsquares/AbstractLeastSquaresOptimizerAbstractTest.java
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/fitting/leastsquares/AbstractLeastSquaresOptimizerAbstractTest.java
index a5a8580..bd0aed4 100644
---
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/fitting/leastsquares/AbstractLeastSquaresOptimizerAbstractTest.java
+++
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/fitting/leastsquares/AbstractLeastSquaresOptimizerAbstractTest.java
@@ -32,7 +32,7 @@ import org.apache.commons.math4.legacy.linear.RealVector;
import org.apache.commons.math4.legacy.optim.ConvergenceChecker;
import org.apache.commons.math4.legacy.optim.SimpleVectorValueChecker;
import org.apache.commons.math4.legacy.core.jdkmath.AccurateMath;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
import org.junit.Assert;
import org.junit.Test;
diff --git
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/fitting/leastsquares/EvaluationTest.java
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/fitting/leastsquares/EvaluationTest.java
index 7ba0218..e319785 100644
---
a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/fitting/leastsquares/EvaluationTest.java
+++
b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/fitting/leastsquares/EvaluationTest.java
@@ -25,7 +25,7 @@ import org.apache.commons.math4.legacy.linear.RealMatrix;
import org.apache.commons.math4.legacy.linear.RealVector;
import org.apache.commons.math4.legacy.linear.SingularMatrixException;
import org.apache.commons.math4.legacy.core.jdkmath.AccurateMath;
-import org.apache.commons.math4.legacy.util.Pair;
+import org.apache.commons.math4.legacy.core.Pair;
import org.apache.commons.numbers.core.Precision;
import org.junit.Assert;
import org.junit.Test;
