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BAEL-4588: Update Guide To Java 8 Optional (eugenp#9995)
* BAEL-4588: Fix maven-shade-plugin version * BAEL-4588: Add empty core-java-11-2 module structure * BAEL-4588: Move Guide To Java 8 Optional to core-java-11-2 * BAEL-4588: Add Java 10 orElseThrow() example
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‎core-java-modules/core-java-11-2/README.md‎

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## Core Java 11
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This module contains articles about Java 11 core features
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### Relevant articles
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- [Guide to Java 8 Optional](https://www.baeldung.com/java-optional)
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‎core-java-modules/core-java-11-2/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project
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xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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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-11-2</artifactId>
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<version>0.1.0-SNAPSHOT</version>
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<name>core-java-11-2</name>
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<packaging>jar</packaging>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>parent-modules</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<relativePath>../..</relativePath>
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</parent>
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<dependencies>
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<dependency>
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<groupId>org.assertj</groupId>
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<artifactId>assertj-core</artifactId>
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<version>${assertj.version}</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>${maven-compiler-plugin.version}</version>
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<configuration>
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<source>${maven.compiler.source.version}</source>
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<target>${maven.compiler.target.version}</target>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<properties>
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<maven.compiler.source.version>11</maven.compiler.source.version>
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<maven.compiler.target.version>11</maven.compiler.target.version>
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<assertj.version>3.17.2</assertj.version>
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</properties>
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</project>

core-java-modules/core-java-optional/src/main/java/com/baeldung/optional/Modem.java renamed to core-java-modules/core-java-11-2/src/main/java/com/baeldung/optional/Modem.java

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core-java-modules/core-java-optional/src/main/java/com/baeldung/optional/Person.java renamed to core-java-modules/core-java-11-2/src/main/java/com/baeldung/optional/Person.java

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core-java-modules/core-java-optional/src/test/java/com/baeldung/optional/OptionalChainingUnitTest.java renamed to core-java-modules/core-java-11-2/src/test/java/com/baeldung/optional/OptionalChainingUnitTest.java

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import java.util.function.Supplier;
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import java.util.stream.Stream;
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import static org.junit.Assert.*;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertTrue;
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public class OptionalChainingUnitTest {
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core-java-modules/core-java-optional/src/test/java/com/baeldung/optional/OptionalUnitTest.java renamed to core-java-modules/core-java-11-2/src/test/java/com/baeldung/optional/OptionalUnitTest.java

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import java.util.NoSuchElementException;
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import java.util.Optional;
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import static org.junit.Assert.*;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertTrue;
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public class OptionalUnitTest {
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.orElseThrow(IllegalArgumentException::new);
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}
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@Test(expected = NoSuchElementException.class)
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public void whenNoArgOrElseThrowWorks_thenCorrect() {
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String nullName = null;
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String name = Optional.ofNullable(nullName).orElseThrow();
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}
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public String getMyDefault() {
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LOG.debug("Getting default value...");
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return "Default Value";

‎core-java-modules/core-java-11/pom.xml‎

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<uberjar.name>benchmarks</uberjar.name>
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<jmh.version>1.22</jmh.version>
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<eclipse.collections.version>10.0.0</eclipse.collections.version>
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<shade.plugin.version>10.0.0</shade.plugin.version>
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<shade.plugin.version>3.2.4</shade.plugin.version>
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</properties>
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</project>

‎core-java-modules/core-java-optional/README.md‎

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### Relevant Articles:
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- [Java Optional as Return Type](https://www.baeldung.com/java-optional-return)
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- [Guide to Java 8 Optional](https://www.baeldung.com/java-optional)
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- [Java Optional – orElse() vs orElseGet()](https://www.baeldung.com/java-optional-or-else-vs-or-else-get)
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- [Transforming an Empty String into an Empty Optional](https://www.baeldung.com/java-empty-string-to-empty-optional)
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- [Filtering a Stream of Optionals in Java](https://www.baeldung.com/java-filter-stream-of-optional)

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