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[MINOR] NPE Optimization for Option (#2158)

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This commit is contained in:
dugenkui
2020-10-12 08:55:41 +08:00
committed by GitHub
parent d4d4c8c899
commit 032bc3b08f
1 changed files with 6 additions and 1 deletions
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7
hudi-common/src/main/java/org/apache/hudi/common/util/Option.java
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@@ -98,6 +98,9 @@ public final class Option<T> implements Serializable {
} }
public <U> Option<U> map(Function<? super T, ? extends U> mapper) { public <U> Option<U> map(Function<? super T, ? extends U> mapper) {
if (null == mapper) {
throw new NullPointerException("mapper should not be null");
}
if (!isPresent()) { if (!isPresent()) {
return empty(); return empty();
} else { } else {
@@ -140,6 +143,8 @@ public final class Option<T> implements Serializable {
@Override @Override
public String toString() { public String toString() {
return "Option{val=" + val + '}'; return val != null
? "Option{val=" + val + "}"
: "Optional.empty";
} }
} }