Created
April 29, 2019 11:16
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NullPointerException when any list element is null
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package com.knoldus; | |
import org.apache.commons.collections4.CollectionUtils; | |
import java.util.ArrayList; | |
import java.util.List; | |
import java.util.stream.Collectors; | |
public class LambdaEx { | |
public static void main(String[] args) { | |
final List<String> names = new ArrayList<>(); | |
names.add("Kunal"); | |
names.add("Akshansh"); | |
names.add(null); | |
final List<String> modifiedCollection = CollectionUtils.emptyIfNull(names) | |
.stream() | |
.filter( name -> name.equalsIgnoreCase("Kunal")) | |
.map(name -> name + "Sethi") | |
.collect(Collectors.toList()); | |
CollectionUtils.emptyIfNull(modifiedCollection).forEach(System.out::println); | |
} | |
} |
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