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Use utility method for "not null" checks.

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This commit is contained in:
Gilles 2015-07-12 00:44:14 +02:00
parent 1fe7a43505
commit 387880a630
1 changed files with 7 additions and 21 deletions
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28
src/main/java/org/apache/commons/math4/fraction/BigFraction.java
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@ -519,9 +519,7 @@ public class BigFraction
*/
@Override
public BigFraction add(final BigFraction fraction) {
if (fraction == null) {
throw new NullArgumentException(LocalizedFormats.FRACTION);
}
MathUtils.checkNotNull(fraction, LocalizedFormats.FRACTION);
if (fraction.numerator.signum() == 0) {
return this;
}
@ -642,9 +640,7 @@ public class BigFraction
* @throws MathArithmeticException if the fraction to divide by is zero
*/
public BigFraction divide(final BigInteger bg) {
if (bg == null) {
throw new NullArgumentException(LocalizedFormats.FRACTION);
}
MathUtils.checkNotNull(bg);
if (bg.signum() == 0) {
throw new MathArithmeticException(LocalizedFormats.ZERO_DENOMINATOR);
}
@ -695,9 +691,7 @@ public class BigFraction
*/
@Override
public BigFraction divide(final BigFraction fraction) {
if (fraction == null) {
throw new NullArgumentException(LocalizedFormats.FRACTION);
}
MathUtils.checkNotNull(fraction, LocalizedFormats.FRACTION);
if (fraction.numerator.signum() == 0) {
throw new MathArithmeticException(LocalizedFormats.ZERO_DENOMINATOR);
}
@ -902,9 +896,7 @@ public class BigFraction
* @throws NullArgumentException if {@code bg} is {@code null}.
*/
public BigFraction multiply(final BigInteger bg) {
if (bg == null) {
throw new NullArgumentException();
}
MathUtils.checkNotNull(bg);
if (numerator.signum() == 0 || bg.signum() == 0) {
return ZERO;
}
@ -960,9 +952,7 @@ public class BigFraction
*/
@Override
public BigFraction multiply(final BigFraction fraction) {
if (fraction == null) {
throw new NullArgumentException(LocalizedFormats.FRACTION);
}
MathUtils.checkNotNull(fraction, LocalizedFormats.FRACTION);
if (numerator.signum() == 0 ||
fraction.numerator.signum() == 0) {
return ZERO;
@ -1130,9 +1120,7 @@ public class BigFraction
* @throws NullArgumentException if the {@link BigInteger} is {@code null}.
*/
public BigFraction subtract(final BigInteger bg) {
if (bg == null) {
throw new NullArgumentException();
}
MathUtils.checkNotNull(bg);
if (bg.signum() == 0) {
return this;
}
@ -1181,9 +1169,7 @@ public class BigFraction
*/
@Override
public BigFraction subtract(final BigFraction fraction) {
if (fraction == null) {
throw new NullArgumentException(LocalizedFormats.FRACTION);
}
MathUtils.checkNotNull(fraction, LocalizedFormats.FRACTION);
if (fraction.numerator.signum() == 0) {
return this;
}