Remove public modifiers for test fixtures.
diff --git a/commons-numbers-angle/src/test/java/org/apache/commons/numbers/angle/PlaneAngleRadiansTest.java b/commons-numbers-angle/src/test/java/org/apache/commons/numbers/angle/PlaneAngleRadiansTest.java
index e4484f3..a320e26 100644
--- a/commons-numbers-angle/src/test/java/org/apache/commons/numbers/angle/PlaneAngleRadiansTest.java
+++ b/commons-numbers-angle/src/test/java/org/apache/commons/numbers/angle/PlaneAngleRadiansTest.java
@@ -22,7 +22,7 @@
/**
* Test cases for the {@link PlaneAngleRadians} class.
*/
-public class PlaneAngleRadiansTest {
+class PlaneAngleRadiansTest {
@Test
@SuppressWarnings("squid:S3415")
void testConstants() {
diff --git a/commons-numbers-angle/src/test/java/org/apache/commons/numbers/angle/PlaneAngleTest.java b/commons-numbers-angle/src/test/java/org/apache/commons/numbers/angle/PlaneAngleTest.java
index c61d024..2b4fcae 100644
--- a/commons-numbers-angle/src/test/java/org/apache/commons/numbers/angle/PlaneAngleTest.java
+++ b/commons-numbers-angle/src/test/java/org/apache/commons/numbers/angle/PlaneAngleTest.java
@@ -22,7 +22,7 @@
/**
* Test cases for the {@link PlaneAngle} class.
*/
-public class PlaneAngleTest {
+class PlaneAngleTest {
@Test
void testConversionTurns() {
final double value = 12.3456;
diff --git a/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/CosAngleTest.java b/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/CosAngleTest.java
index 33f9e54..697fcc0 100644
--- a/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/CosAngleTest.java
+++ b/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/CosAngleTest.java
@@ -22,7 +22,7 @@
/**
* Test cases for the {@link CosAngle} class.
*/
-public class CosAngleTest {
+class CosAngleTest {
@Test
void testCosAngle2D() {
diff --git a/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/LinearCombinationTest.java b/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/LinearCombinationTest.java
index fedb4e3..fdb5573 100644
--- a/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/LinearCombinationTest.java
+++ b/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/LinearCombinationTest.java
@@ -26,7 +26,7 @@
/**
* Test cases for the {@link LinearCombination} class.
*/
-public class LinearCombinationTest {
+class LinearCombinationTest {
// MATH-1005
@Test
void testSingleElementArray() {
diff --git a/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/MultidimensionalCounterTest.java b/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/MultidimensionalCounterTest.java
index b8f05b6..7307eb5 100644
--- a/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/MultidimensionalCounterTest.java
+++ b/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/MultidimensionalCounterTest.java
@@ -25,7 +25,7 @@
* Test cases for the {@link MultidimensionalCounter} class.
*
*/
-public class MultidimensionalCounterTest {
+class MultidimensionalCounterTest {
@Test
void testPreconditions() {
Assertions.assertThrows(IllegalArgumentException.class, () -> MultidimensionalCounter.of(0, 1));
diff --git a/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/SafeNormTest.java b/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/SafeNormTest.java
index b920918..293a96c 100644
--- a/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/SafeNormTest.java
+++ b/commons-numbers-arrays/src/test/java/org/apache/commons/numbers/arrays/SafeNormTest.java
@@ -22,7 +22,7 @@
/**
* Test cases for the {@link SafeNorm} class.
*/
-public class SafeNormTest {
+class SafeNormTest {
@Test
void testTiny() {
diff --git a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/BinomialCoefficientDoubleTest.java b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/BinomialCoefficientDoubleTest.java
index 606b8be..43bd7cf 100644
--- a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/BinomialCoefficientDoubleTest.java
+++ b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/BinomialCoefficientDoubleTest.java
@@ -22,7 +22,7 @@
/**
* Test cases for the {@link BinomialCoefficient} class.
*/
-public class BinomialCoefficientDoubleTest {
+class BinomialCoefficientDoubleTest {
/** Verify that b(0,0) = 1 */
@Test
void test0Choose0() {
diff --git a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/BinomialCoefficientTest.java b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/BinomialCoefficientTest.java
index 341f9cc..a843fcb 100644
--- a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/BinomialCoefficientTest.java
+++ b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/BinomialCoefficientTest.java
@@ -27,7 +27,7 @@
/**
* Test cases for the {@link BinomialCoefficient} class.
*/
-public class BinomialCoefficientTest {
+class BinomialCoefficientTest {
/** Cached binomial coefficients. */
private static final List<Map<Integer, Long>> binomialCache = new ArrayList<>();
diff --git a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/CombinationsTest.java b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/CombinationsTest.java
index a32a42f..b26f862 100644
--- a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/CombinationsTest.java
+++ b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/CombinationsTest.java
@@ -26,7 +26,7 @@
/**
* Tests for the {@link Combinations} class.
*/
-public class CombinationsTest {
+class CombinationsTest {
@Test
void testGetN() {
final int n = 5;
diff --git a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/FactorialDoubleTest.java b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/FactorialDoubleTest.java
index 414ba0d..50be32a 100644
--- a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/FactorialDoubleTest.java
+++ b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/FactorialDoubleTest.java
@@ -22,7 +22,7 @@
/**
* Test cases for the {@link FactorialDouble} class.
*/
-public class FactorialDoubleTest {
+class FactorialDoubleTest {
@Test
void testFactorialZero() {
Assertions.assertEquals(1, FactorialDouble.create().value(0), 0d, "0!");
diff --git a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/FactorialTest.java b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/FactorialTest.java
index 1579375..689739d 100644
--- a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/FactorialTest.java
+++ b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/FactorialTest.java
@@ -22,7 +22,7 @@
/**
* Test cases for the {@link Factorial} class.
*/
-public class FactorialTest {
+class FactorialTest {
@Test
void testFactorialZero() {
Assertions.assertEquals(1, Factorial.value(0), "0!");
diff --git a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/LogBinomialCoefficientTest.java b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/LogBinomialCoefficientTest.java
index fa36927..0007430 100644
--- a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/LogBinomialCoefficientTest.java
+++ b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/LogBinomialCoefficientTest.java
@@ -22,7 +22,7 @@
/**
* Test cases for the {@link LogBinomialCoefficient} class.
*/
-public class LogBinomialCoefficientTest {
+class LogBinomialCoefficientTest {
/** Verify that b(0,0) = 1 */
@Test
void test0Choose0() {
diff --git a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/LogFactorialTest.java b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/LogFactorialTest.java
index e7c84ce..8fd5a4f 100644
--- a/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/LogFactorialTest.java
+++ b/commons-numbers-combinatorics/src/test/java/org/apache/commons/numbers/combinatorics/LogFactorialTest.java
@@ -24,7 +24,7 @@
/**
* Test cases for the {@link LogFactorial} class.
*/
-public class LogFactorialTest {
+class LogFactorialTest {
@Test
void testNonPositiveArgumentWithCache() {
Assertions.assertThrows(IllegalArgumentException.class,
diff --git a/commons-numbers-complex-streams/src/test/java/org/apache/commons/numbers/complex/streams/ComplexUtilsTest.java b/commons-numbers-complex-streams/src/test/java/org/apache/commons/numbers/complex/streams/ComplexUtilsTest.java
index 7bac2b1..6b1e6a4 100644
--- a/commons-numbers-complex-streams/src/test/java/org/apache/commons/numbers/complex/streams/ComplexUtilsTest.java
+++ b/commons-numbers-complex-streams/src/test/java/org/apache/commons/numbers/complex/streams/ComplexUtilsTest.java
@@ -25,7 +25,7 @@
/**
* Tests for {@link ComplexUtils}.
*/
-public class ComplexUtilsTest {
+class ComplexUtilsTest {
private static final double inf = Double.POSITIVE_INFINITY;
private static final double negInf = Double.NEGATIVE_INFINITY;
diff --git a/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/CReferenceTest.java b/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/CReferenceTest.java
index 322c946..cf72442 100644
--- a/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/CReferenceTest.java
+++ b/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/CReferenceTest.java
@@ -36,7 +36,7 @@
* @see <a href="http://www.open-std.org/JTC1/SC22/WG14/www/standards">
* ISO/IEC 9899 - Programming languages - C</a>
*/
-public class CReferenceTest {
+class CReferenceTest {
/** Positive zero bits. */
private static final long POSITIVE_ZERO_DOUBLE_BITS = Double.doubleToRawLongBits(+0.0);
/** Negative zero bits. */
diff --git a/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/CStandardTest.java b/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/CStandardTest.java
index 09f8489..c4cf9be 100644
--- a/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/CStandardTest.java
+++ b/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/CStandardTest.java
@@ -37,7 +37,7 @@
* @see <a href="http://www.open-std.org/JTC1/SC22/WG14/www/standards">
* ISO/IEC 9899 - Programming languages - C</a>
*/
-public class CStandardTest {
+class CStandardTest {
private static final double inf = Double.POSITIVE_INFINITY;
private static final double negInf = Double.NEGATIVE_INFINITY;
diff --git a/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/ComplexEdgeCaseTest.java b/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/ComplexEdgeCaseTest.java
index 351baa9..95a3952 100644
--- a/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/ComplexEdgeCaseTest.java
+++ b/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/ComplexEdgeCaseTest.java
@@ -36,7 +36,7 @@
* @see <a href="http://www.open-std.org/JTC1/SC22/WG14/www/standards">
* ISO/IEC 9899 - Programming languages - C</a>
*/
-public class ComplexEdgeCaseTest {
+class ComplexEdgeCaseTest {
private static final double inf = Double.POSITIVE_INFINITY;
private static final double nan = Double.NaN;
diff --git a/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/ComplexTest.java b/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/ComplexTest.java
index b0c006e..72e89ae 100644
--- a/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/ComplexTest.java
+++ b/commons-numbers-complex/src/test/java/org/apache/commons/numbers/complex/ComplexTest.java
@@ -43,7 +43,7 @@
* imaginary parts that can create intermediate overflow or underflow.
* </ul>
*/
-public class ComplexTest {
+class ComplexTest {
private static final double inf = Double.POSITIVE_INFINITY;
private static final double neginf = Double.NEGATIVE_INFINITY;
diff --git a/commons-numbers-core/src/test/java/org/apache/commons/numbers/core/ArithmeticUtilsTest.java b/commons-numbers-core/src/test/java/org/apache/commons/numbers/core/ArithmeticUtilsTest.java
index dc9ef9b..5a4bb73 100644
--- a/commons-numbers-core/src/test/java/org/apache/commons/numbers/core/ArithmeticUtilsTest.java
+++ b/commons-numbers-core/src/test/java/org/apache/commons/numbers/core/ArithmeticUtilsTest.java
@@ -27,7 +27,7 @@
* Test cases for the {@link ArithmeticUtils} class.
*
*/
-public class ArithmeticUtilsTest {
+class ArithmeticUtilsTest {
@Test
void testGcd() {
diff --git a/commons-numbers-core/src/test/java/org/apache/commons/numbers/core/PrecisionTest.java b/commons-numbers-core/src/test/java/org/apache/commons/numbers/core/PrecisionTest.java
index 94e8ca4..ef63d75 100644
--- a/commons-numbers-core/src/test/java/org/apache/commons/numbers/core/PrecisionTest.java
+++ b/commons-numbers-core/src/test/java/org/apache/commons/numbers/core/PrecisionTest.java
@@ -25,7 +25,7 @@
* Test cases for the {@link Precision} class.
*
*/
-public class PrecisionTest {
+class PrecisionTest {
// Interfaces to allow testing equals variants with the same conditions
diff --git a/commons-numbers-examples/examples-jmh/src/test/java/org/apache/commons/numbers/examples/jmh/arrays/DoublePrecisionTest.java b/commons-numbers-examples/examples-jmh/src/test/java/org/apache/commons/numbers/examples/jmh/arrays/DoublePrecisionTest.java
index d48c5a0..5a24296 100644
--- a/commons-numbers-examples/examples-jmh/src/test/java/org/apache/commons/numbers/examples/jmh/arrays/DoublePrecisionTest.java
+++ b/commons-numbers-examples/examples-jmh/src/test/java/org/apache/commons/numbers/examples/jmh/arrays/DoublePrecisionTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link DoublePrecision}.
*/
-public class DoublePrecisionTest {
+class DoublePrecisionTest {
@Test
void testSplitAssumptions() {
// The multiplier used to split the double value into high and low parts.
diff --git a/commons-numbers-examples/examples-jmh/src/test/java/org/apache/commons/numbers/examples/jmh/arrays/LinearCombinationAccuracyTest.java b/commons-numbers-examples/examples-jmh/src/test/java/org/apache/commons/numbers/examples/jmh/arrays/LinearCombinationAccuracyTest.java
index befef80..35f45b7 100644
--- a/commons-numbers-examples/examples-jmh/src/test/java/org/apache/commons/numbers/examples/jmh/arrays/LinearCombinationAccuracyTest.java
+++ b/commons-numbers-examples/examples-jmh/src/test/java/org/apache/commons/numbers/examples/jmh/arrays/LinearCombinationAccuracyTest.java
@@ -39,7 +39,7 @@
/**
* Test the accuracy of each implementation of {@link LinearCombination}.
*/
-public class LinearCombinationAccuracyTest {
+class LinearCombinationAccuracyTest {
/**
* The dot product length.
* This must be the same for the accuracy report as the assertions.
@@ -84,7 +84,7 @@
*/
@ParameterizedTest
@MethodSource("provideLinearCombination")
- public void testDotProduct(ND fun, double passC, double failC) {
+ void testDotProduct(ND fun, double passC, double failC) {
final double[] x = new double[LENGTH];
final double[] y = new double[LENGTH];
// Fixed seed to consistency
@@ -125,7 +125,7 @@
*/
@Test
@Disabled("This method is used to output a report of the accuracy of implementations.")
- public void reportRelativeError() throws IOException {
+ void reportRelativeError() throws IOException {
// Ogita et al (2005) Figure 6.2 used length=100, samples=1000 with c in 1 to 1e120.
// Ogita et al (2005) Figure 6.4 used length=1000, samples=2000 with c in 1 to 1e120.
// Here the condition number is in 1e10 to 1e120 as low condition numbers are
diff --git a/commons-numbers-examples/examples-jmh/src/test/java/org/apache/commons/numbers/examples/jmh/arrays/LinearCombinationsTest.java b/commons-numbers-examples/examples-jmh/src/test/java/org/apache/commons/numbers/examples/jmh/arrays/LinearCombinationsTest.java
index d0bccb3..c77490d 100644
--- a/commons-numbers-examples/examples-jmh/src/test/java/org/apache/commons/numbers/examples/jmh/arrays/LinearCombinationsTest.java
+++ b/commons-numbers-examples/examples-jmh/src/test/java/org/apache/commons/numbers/examples/jmh/arrays/LinearCombinationsTest.java
@@ -38,7 +38,7 @@
/**
* Test each implementation of the LinearCombination interface.
*/
-public class LinearCombinationsTest {
+class LinearCombinationsTest {
/** Double.MIN_VALUE as a BigDecimal. Use string constructor to truncate precision to 4.9e-324. */
private static final BigDecimal MIN = BigDecimal.valueOf(Double.MIN_VALUE);
@@ -66,7 +66,7 @@
@ParameterizedTest
@MethodSource("provideLinearCombination")
- public void testSingleElementArray(ND fun) {
+ void testSingleElementArray(ND fun) {
final double[] a = {1.23456789};
final double[] b = {98765432.1};
@@ -75,7 +75,7 @@
@ParameterizedTest
@MethodSource("provideLinearCombination")
- public void testTwoSums(ND fun) {
+ void testTwoSums(ND fun) {
final BigFraction[] aF = new BigFraction[] {
BigFraction.of(-1321008684645961L, 268435456L),
BigFraction.of(-5774608829631843L, 268435456L),
@@ -117,7 +117,7 @@
@ParameterizedTest
@MethodSource("provideLinearCombination")
- public void testHuge(ND fun) {
+ void testHuge(ND fun) {
final int scale = 971;
final double[] a = new double[] {
-1321008684645961.0 / 268435456.0,
@@ -152,7 +152,7 @@
@ParameterizedTest
@MethodSource("provideLinearCombination")
- public void testArrayVsInline(ND fun) {
+ void testArrayVsInline(ND fun) {
// Assume the instance implements the inline functions
final TwoD fun2 = (TwoD) fun;
final ThreeD fun3 = (ThreeD) fun;
@@ -195,7 +195,7 @@
@ParameterizedTest
@MethodSource("provideLinearCombination")
- public void testNonFinite(ND fun) {
+ void testNonFinite(ND fun) {
final double[][] a = new double[][] {
{1, 2, 3, 4},
{1, Double.POSITIVE_INFINITY, 3, 4},
diff --git a/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FP64Test.java b/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FP64Test.java
index 6291667..2007765 100644
--- a/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FP64Test.java
+++ b/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FP64Test.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link FP64}.
*/
-public class FP64Test {
+class FP64Test {
@Test
void testConsistencyWithDouble() {
final double v = -5.67e89;
diff --git a/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldParametricTest.java b/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldParametricTest.java
index fa46bbc..8b09a92 100644
--- a/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldParametricTest.java
+++ b/commons-numbers-field/src/test/java/org/apache/commons/numbers/field/FieldParametricTest.java
@@ -28,7 +28,7 @@
/**
* Tests for fields.
*/
-public class FieldParametricTest {
+class FieldParametricTest {
private static Stream<FieldTestData<?>> getList() {
return FieldsList.list().stream();
diff --git a/commons-numbers-fraction/src/test/java/org/apache/commons/numbers/fraction/BigFractionTest.java b/commons-numbers-fraction/src/test/java/org/apache/commons/numbers/fraction/BigFractionTest.java
index 81e8774..5ded68e 100644
--- a/commons-numbers-fraction/src/test/java/org/apache/commons/numbers/fraction/BigFractionTest.java
+++ b/commons-numbers-fraction/src/test/java/org/apache/commons/numbers/fraction/BigFractionTest.java
@@ -28,7 +28,7 @@
/**
* Tests for {@link BigFraction}.
*/
-public class BigFractionTest {
+class BigFractionTest {
/** The zero representation with positive denominator. */
private static final BigFraction ZERO_P = BigFraction.of(0, 1);
diff --git a/commons-numbers-fraction/src/test/java/org/apache/commons/numbers/fraction/ContinuedFractionTest.java b/commons-numbers-fraction/src/test/java/org/apache/commons/numbers/fraction/ContinuedFractionTest.java
index af2f180..96ab37a 100644
--- a/commons-numbers-fraction/src/test/java/org/apache/commons/numbers/fraction/ContinuedFractionTest.java
+++ b/commons-numbers-fraction/src/test/java/org/apache/commons/numbers/fraction/ContinuedFractionTest.java
@@ -23,7 +23,7 @@
/**
* Tests for {@link ContinuedFraction}.
*/
-public class ContinuedFractionTest {
+class ContinuedFractionTest {
@Test
void testGoldenRatio() throws Exception {
diff --git a/commons-numbers-fraction/src/test/java/org/apache/commons/numbers/fraction/FractionTest.java b/commons-numbers-fraction/src/test/java/org/apache/commons/numbers/fraction/FractionTest.java
index f50eee0..1a2a1b6 100644
--- a/commons-numbers-fraction/src/test/java/org/apache/commons/numbers/fraction/FractionTest.java
+++ b/commons-numbers-fraction/src/test/java/org/apache/commons/numbers/fraction/FractionTest.java
@@ -28,7 +28,7 @@
/**
* Tests for {@link Fraction}.
*/
-public class FractionTest {
+class FractionTest {
/** The zero representation with positive denominator. */
private static final Fraction ZERO_P = Fraction.of(0, 1);
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/DigammaTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/DigammaTest.java
index b8431a6..48ecd76 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/DigammaTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/DigammaTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link Digamma}.
*/
-public class DigammaTest {
+class DigammaTest {
@Test
void testDigammaLargeArgs() {
double eps = 1e-8;
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/ErfDifferenceTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/ErfDifferenceTest.java
index 881563c..322d6cf 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/ErfDifferenceTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/ErfDifferenceTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link ErfDifference}.
*/
-public class ErfDifferenceTest {
+class ErfDifferenceTest {
/**
* Test the implementation of ErfDifference.value(double, double) for consistency
* with results obtained from Erf.value(double) and Erfc.value(double).
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/ErfTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/ErfTest.java
index f9b3f62..2869955 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/ErfTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/ErfTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link Erf}.
*/
-public class ErfTest {
+class ErfTest {
@Test
void testErf0() {
double actual = Erf.value(0);
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/ErfcTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/ErfcTest.java
index 99f2845..81be557 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/ErfcTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/ErfcTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link Erfc}.
*/
-public class ErfcTest {
+class ErfcTest {
/**
* Compare erfc against reference values computed using GCC 4.2.1
* (Apple OSX packaged version) erfcl (extended precision erfc).
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/GammaTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/GammaTest.java
index 1c19785..3da8b6e 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/GammaTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/GammaTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link Gamma}.
*/
-public class GammaTest {
+class GammaTest {
/**
* Reference data for the {@link Gamma#value(double)} function. This
* data was generated with the following <a
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/InvGamma1pm1Test.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/InvGamma1pm1Test.java
index 07f8087..868202c 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/InvGamma1pm1Test.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/InvGamma1pm1Test.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link InvGamma1pm1}.
*/
-public class InvGamma1pm1Test {
+class InvGamma1pm1Test {
/**
* <p>
* Reference values for the {@link InvGamma1pm1#value(double)} method.
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/InverseErfTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/InverseErfTest.java
index f19837e..33830e1 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/InverseErfTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/InverseErfTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link InverseErf}.
*/
-public class InverseErfTest {
+class InverseErfTest {
@Test
void testErfInvNaN() {
Assertions.assertTrue(Double.isNaN(InverseErf.value(-1.001)));
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/InverseErfcTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/InverseErfcTest.java
index dd9d015..a2927e8 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/InverseErfcTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/InverseErfcTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link InverseErfc}.
*/
-public class InverseErfcTest {
+class InverseErfcTest {
@Test
void testErfcInvNaN() {
Assertions.assertTrue(Double.isNaN(InverseErfc.value(-0.001)));
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LanczosApproximationTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LanczosApproximationTest.java
index d562909..4782497 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LanczosApproximationTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LanczosApproximationTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link LanczosApproximation}.
*/
-public class LanczosApproximationTest {
+class LanczosApproximationTest {
@Test
void testG() {
Assertions.assertEquals(607d / 128d, LanczosApproximation.g(), 0d);
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogBetaTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogBetaTest.java
index 9e6a68b..114d055 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogBetaTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogBetaTest.java
@@ -25,7 +25,7 @@
/**
* Tests for {@link LogBeta}.
*/
-public class LogBetaTest {
+class LogBetaTest {
private static final double[][] LOG_BETA_REF = {
{0.125, 0.125, 2.750814190409515},
{0.125, 0.25, 2.444366899981226},
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogGamma1pTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogGamma1pTest.java
index c1ea8f6..9cf1b29 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogGamma1pTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogGamma1pTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link LogGamma1p}.
*/
-public class LogGamma1pTest {
+class LogGamma1pTest {
private static final double[][] LOG_GAMMA1P_REF = {
{-0.5, .5723649429247001},
{-0.375, .3608294954889402},
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogGammaSumTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogGammaSumTest.java
index a54b6cc..e21a70d 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogGammaSumTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogGammaSumTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link LogGammaSum}.
*/
-public class LogGammaSumTest {
+class LogGammaSumTest {
/**
* Reference data for the {@link LogGammaSum#value(double, double)}
* function. This data was generated with the following
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogGammaTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogGammaTest.java
index 4cbc033..3f18410 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogGammaTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/LogGammaTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link LogGamma}.
*/
-public class LogGammaTest {
+class LogGammaTest {
/**
* Reference data for the {@link Gamma#logGamma(double)} function. This data
* was generated with the following <a
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/RegularizedBetaTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/RegularizedBetaTest.java
index 32f0e03..1fc6304 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/RegularizedBetaTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/RegularizedBetaTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link RegularizedBeta}.
*/
-public class RegularizedBetaTest {
+class RegularizedBetaTest {
@Test
void testRegularizedBetaNanPositivePositive() {
testRegularizedBeta(Double.NaN, Double.NaN, 1.0, 1.0);
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/RegularizedGammaTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/RegularizedGammaTest.java
index 5557e50..e461a1a 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/RegularizedGammaTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/RegularizedGammaTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link RegularizedGamma}.
*/
-public class RegularizedGammaTest {
+class RegularizedGammaTest {
@Test
void testRegularizedGammaNanPositive() {
testRegularizedGamma(Double.NaN, Double.NaN, 1.0);
diff --git a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/TrigammaTest.java b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/TrigammaTest.java
index a865c92..eb481a5 100644
--- a/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/TrigammaTest.java
+++ b/commons-numbers-gamma/src/test/java/org/apache/commons/numbers/gamma/TrigammaTest.java
@@ -22,7 +22,7 @@
/**
* Tests for {@link Trigamma}.
*/
-public class TrigammaTest {
+class TrigammaTest {
@Test
void testTrigamma() {
double eps = 1e-8;
diff --git a/commons-numbers-primes/src/test/java/org/apache/commons/numbers/primes/PrimesTest.java b/commons-numbers-primes/src/test/java/org/apache/commons/numbers/primes/PrimesTest.java
index e7242c8..9c2807f 100644
--- a/commons-numbers-primes/src/test/java/org/apache/commons/numbers/primes/PrimesTest.java
+++ b/commons-numbers-primes/src/test/java/org/apache/commons/numbers/primes/PrimesTest.java
@@ -24,7 +24,7 @@
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
-public class PrimesTest {
+class PrimesTest {
static final int[] PRIMES = {
//primes here have been verified one by one using Dario Alejandro Alpern's tool.
diff --git a/commons-numbers-primes/src/test/java/org/apache/commons/numbers/primes/SmallPrimesTest.java b/commons-numbers-primes/src/test/java/org/apache/commons/numbers/primes/SmallPrimesTest.java
index 4f3dd5f..8ba4e7a 100644
--- a/commons-numbers-primes/src/test/java/org/apache/commons/numbers/primes/SmallPrimesTest.java
+++ b/commons-numbers-primes/src/test/java/org/apache/commons/numbers/primes/SmallPrimesTest.java
@@ -24,7 +24,7 @@
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
-public class SmallPrimesTest {
+class SmallPrimesTest {
// Primes larger than the small PRIMES array in SmallPrimes
private static final int[] LARGE_PRIME = {3673, 3677};
diff --git a/commons-numbers-quaternion/src/test/java/org/apache/commons/numbers/quaternion/QuaternionTest.java b/commons-numbers-quaternion/src/test/java/org/apache/commons/numbers/quaternion/QuaternionTest.java
index e3022ce..eec4e22 100644
--- a/commons-numbers-quaternion/src/test/java/org/apache/commons/numbers/quaternion/QuaternionTest.java
+++ b/commons-numbers-quaternion/src/test/java/org/apache/commons/numbers/quaternion/QuaternionTest.java
@@ -21,7 +21,7 @@
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
-public class QuaternionTest {
+class QuaternionTest {
/** Epsilon for double comparison. */
private static final double EPS = Math.ulp(1d);
/** Epsilon for double comparison. */
diff --git a/commons-numbers-quaternion/src/test/java/org/apache/commons/numbers/quaternion/SlerpTest.java b/commons-numbers-quaternion/src/test/java/org/apache/commons/numbers/quaternion/SlerpTest.java
index bcdbcbe..37f34c7 100644
--- a/commons-numbers-quaternion/src/test/java/org/apache/commons/numbers/quaternion/SlerpTest.java
+++ b/commons-numbers-quaternion/src/test/java/org/apache/commons/numbers/quaternion/SlerpTest.java
@@ -21,7 +21,7 @@
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
-public class SlerpTest {
+class SlerpTest {
private static final double EPS = 1e-7;
diff --git a/commons-numbers-rootfinder/src/test/java/org/apache/commons/numbers/rootfinder/BrentSolverTest.java b/commons-numbers-rootfinder/src/test/java/org/apache/commons/numbers/rootfinder/BrentSolverTest.java
index 40cf641..abe6bb2 100644
--- a/commons-numbers-rootfinder/src/test/java/org/apache/commons/numbers/rootfinder/BrentSolverTest.java
+++ b/commons-numbers-rootfinder/src/test/java/org/apache/commons/numbers/rootfinder/BrentSolverTest.java
@@ -24,7 +24,7 @@
/**
* Test cases for the {@link BrentSolver} class.
*/
-public class BrentSolverTest {
+class BrentSolverTest {
private static final double DEFAULT_ABSOLUTE_ACCURACY = 1e-6;
private static final double DEFAULT_RELATIVE_ACCURACY = 1e-14;
private static final double DEFAULT_FUNCTION_ACCURACY = 1e-15;
