reformat the files using intellij-baeldung-style.xml
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hajk1
parent
fc31ffd062
commit
2a754ad337
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@ -1,54 +1,54 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>core-java-collections-6</artifactId>
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<name>core-java-collections-6</name>
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<packaging>jar</packaging>
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xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>core-java-collections-6</artifactId>
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<name>core-java-collections-6</name>
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<packaging>jar</packaging>
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<parent>
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<artifactId>core-java-modules</artifactId>
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<groupId>com.baeldung.core-java-modules</groupId>
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<version>0.0.1-SNAPSHOT</version>
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</parent>
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<parent>
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<artifactId>core-java-modules</artifactId>
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<groupId>com.baeldung.core-java-modules</groupId>
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<version>0.0.1-SNAPSHOT</version>
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</parent>
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<dependencies>
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<dependency>
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<artifactId>junit-platform-runner</artifactId>
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<groupId>org.junit.platform</groupId>
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<scope>test</scope>
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<version>${junit-platform.version}</version>
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</dependency>
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<dependency>
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<artifactId>junit-jupiter</artifactId>
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<groupId>org.junit.jupiter</groupId>
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<scope>test</scope>
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<version>${junit.version}</version>
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</dependency>
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<dependency>
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<artifactId>junit-vintage-engine</artifactId>
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<groupId>org.junit.vintage</groupId>
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<scope>test</scope>
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<version>${junit.version}</version>
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</dependency>
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</dependencies>
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<dependencies>
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<dependency>
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<artifactId>junit-platform-runner</artifactId>
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<groupId>org.junit.platform</groupId>
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<scope>test</scope>
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<version>${junit-platform.version}</version>
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</dependency>
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<dependency>
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<artifactId>junit-jupiter</artifactId>
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<groupId>org.junit.jupiter</groupId>
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<scope>test</scope>
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<version>${junit.version}</version>
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</dependency>
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<dependency>
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<artifactId>junit-vintage-engine</artifactId>
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<groupId>org.junit.vintage</groupId>
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<scope>test</scope>
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<version>${junit.version}</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<source>9</source>
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<target>9</target>
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</configuration>
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<groupId>org.apache.maven.plugins</groupId>
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</plugin>
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</plugins>
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</build>
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<build>
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<plugins>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<source>9</source>
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<target>9</target>
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</configuration>
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<groupId>org.apache.maven.plugins</groupId>
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</plugin>
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</plugins>
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</build>
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<properties>
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<junit.version>5.10.2</junit.version>
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</properties>
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<properties>
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<junit.version>5.10.2</junit.version>
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</properties>
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</project>
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@ -8,6 +8,7 @@ import java.util.Collections;
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import java.util.Iterator;
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import java.util.List;
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import java.util.stream.Stream;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.Arguments;
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@ -15,55 +16,49 @@ import org.junit.jupiter.params.provider.MethodSource;
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class IteratorVsForeachUnitTest {
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private static Stream<Arguments> listProvider() {
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return Stream.of(
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Arguments.of(
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List.of("String1", "String2", "unwanted"),
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List.of("String1", "String2"))
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);
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}
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@Test
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public void givenEmptyCollection_whenUsingForEach_thenNoElementsAreIterated() {
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List<String> names = Collections.emptyList();
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StringBuilder stringBuilder = new StringBuilder();
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names.forEach(stringBuilder::append);
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assertEquals("", stringBuilder.toString());
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}
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@ParameterizedTest
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@MethodSource("listProvider")
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public void givenCollectionWithElements_whenRemovingElementDuringForEachIteration_thenElementIsRemoved(
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List<String> input, List<String> expected) {
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List<String> mutableList = new ArrayList<>(input);
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// Separate collection for items to be removed
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List<String> toRemove = new ArrayList<>();
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// Using forEach to identify items to remove
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input.forEach(item -> {
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if (item.equals("unwanted")) {
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toRemove.add(item);
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}
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});
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// Removing the identified items from the original list
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mutableList.removeAll(toRemove);
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assertIterableEquals(expected, mutableList);
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}
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@ParameterizedTest
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@MethodSource("listProvider")
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public void givenCollectionWithElements_whenRemovingElementDuringIteratorIteration_thenElementIsRemoved(
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List<String> input, List<String> expected) {
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List<String> mutableList = new ArrayList<>(input);
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Iterator<String> it = mutableList.iterator();
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while (it.hasNext()) {
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String item = it.next();
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if (item.equals("unwanted")) {
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it.remove(); // Safely remove item
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}
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private static Stream<Arguments> listProvider() {
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return Stream.of(Arguments.of(List.of("String1", "String2", "unwanted"), List.of("String1", "String2")));
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}
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@Test
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public void givenEmptyCollection_whenUsingForEach_thenNoElementsAreIterated() {
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List<String> names = Collections.emptyList();
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StringBuilder stringBuilder = new StringBuilder();
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names.forEach(stringBuilder::append);
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assertEquals("", stringBuilder.toString());
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}
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@ParameterizedTest
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@MethodSource("listProvider")
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public void givenCollectionWithElements_whenRemovingElementDuringForEachIteration_thenElementIsRemoved(List<String> input, List<String> expected) {
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List<String> mutableList = new ArrayList<>(input);
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// Separate collection for items to be removed
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List<String> toRemove = new ArrayList<>();
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// Using forEach to identify items to remove
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input.forEach(item -> {
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if (item.equals("unwanted")) {
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toRemove.add(item);
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}
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});
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// Removing the identified items from the original list
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mutableList.removeAll(toRemove);
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assertIterableEquals(expected, mutableList);
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}
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@ParameterizedTest
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@MethodSource("listProvider")
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public void givenCollectionWithElements_whenRemovingElementDuringIteratorIteration_thenElementIsRemoved(List<String> input, List<String> expected) {
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List<String> mutableList = new ArrayList<>(input);
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Iterator<String> it = mutableList.iterator();
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while (it.hasNext()) {
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String item = it.next();
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if (item.equals("unwanted")) {
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it.remove(); // Safely remove item
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}
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}
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assertIterableEquals(expected, mutableList);
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}
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assertIterableEquals(expected, mutableList);
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}
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}
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