Merge branch 'master' of github.com:eugenp/tutorials into geroza/BAEL-9523_migrate-projects-to-paren-t-pom-2

Author: rozagerardo

core-java-11/src/main/java/com/baeldung/Outer.java

@@ -0,0 +1,24 @@
+package com.baeldung;
+
+import java.lang.reflect.Method;
+
+public class Outer {
+
+    public void outerPublic() {
+    }
+
+    private void outerPrivate() {
+    }
+
+    class Inner {
+
+        public void innerPublic() {
+            outerPrivate();
+        }
+
+        public void innerPublicReflection(Outer ob) throws Exception {
+            Method method = ob.getClass().getDeclaredMethod("outerPrivate");
+            method.invoke(ob);
+        }
+    }
+}

core-java-11/src/test/java/com/baeldung/OuterUnitTest.java

@@ -0,0 +1,46 @@
+package com.baeldung;
+
+import static org.junit.Assert.assertTrue;
+import static org.hamcrest.CoreMatchers.is;
+
+import java.util.Arrays;
+import java.util.Set;
+import java.util.stream.Collectors;
+import org.junit.Test;
+
+public class OuterUnitTest {
+
+    private static final String NEST_HOST_NAME = "com.baeldung.Outer";
+
+    @Test
+    public void whenGetNestHostFromOuter_thenGetNestHost() {
+        is(Outer.class.getNestHost().getName()).equals(NEST_HOST_NAME);
+    }
+
+    @Test
+    public void whenGetNestHostFromInner_thenGetNestHost() {
+        is(Outer.Inner.class.getNestHost().getName()).equals(NEST_HOST_NAME);
+    }
+
+    @Test
+    public void whenCheckNestmatesForNestedClasses_thenGetTrue() {
+        is(Outer.Inner.class.isNestmateOf(Outer.class)).equals(true);
+    }
+
+    @Test
+    public void whenCheckNestmatesForUnrelatedClasses_thenGetFalse() {
+        is(Outer.Inner.class.isNestmateOf(Outer.class)).equals(false);
+    }
+
+    @Test
+    public void whenGetNestMembersForNestedClasses_thenGetAllNestedClasses() {
+        Set<String> nestMembers = Arrays.stream(Outer.Inner.class.getNestMembers())
+          .map(Class::getName)
+          .collect(Collectors.toSet());
+
+        is(nestMembers.size()).equals(2);
+
+        assertTrue(nestMembers.contains("com.baeldung.Outer"));
+        assertTrue(nestMembers.contains("com.baeldung.Outer$Inner"));
+    }
+}

core-java-11/src/test/java/com/baeldung/optional/OptionalUnitTest.java

@@ -0,0 +1,23 @@
+package com.baeldung.optional;
+
+import org.junit.Test;
+
+import java.util.Optional;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Unit tests for {@link Optional} in Java 11.
+ */
+public class OptionalUnitTest {
+
+    @Test
+    public void givenAnEmptyOptional_isEmpty_thenBehavesAsExpected() {
+        Optional<String> opt = Optional.of("Baeldung");
+        assertFalse(opt.isEmpty());
+
+        opt = Optional.ofNullable(null);
+        assertTrue(opt.isEmpty());
+    }
+}

core-java-collections-list/README.md

@@ -0,0 +1,48 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>core-java-collections-list</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+    <name>core-java-collections-list</name>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-java</relativePath>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-collections4</artifactId>
+            <version>${commons-collections4.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>${lombok.version}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <commons-collections4.version>4.1</commons-collections4.version>
+        <commons-lang3.version>3.8.1</commons-lang3.version>
+        <avaitility.version>1.7.0</avaitility.version>
+        <assertj.version>3.11.1</assertj.version>
+        <lombok.version>1.16.12</lombok.version>
+    </properties>
+</project>

core-java-collections-list/pom.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

core-java-collections/src/main/java/com/baeldung/classcastexception/ClassCastException.java renamed to core-java-collections-list/src/main/java/com/baeldung/classcastexception/ClassCastException.java

@@ -1,4 +1,4 @@
-package com.baeldung;
+package org.baeldung;
 
 import com.google.common.collect.Lists;
 import org.junit.Test;

core-java-collections/src/main/java/com/baeldung/findanelement/Customer.java renamed to core-java-collections-list/src/main/java/com/baeldung/findanelement/Customer.java

@@ -4,15 +4,24 @@
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
+
 import sun.security.x509.AlgorithmId;
 import sun.security.x509.CertificateAlgorithmId;
 import sun.security.x509.CertificateSerialNumber;
 import sun.security.x509.CertificateValidity;
 import sun.security.x509.CertificateVersion;
 import sun.security.x509.CertificateX509Key;
+import sun.security.x509.SubjectAlternativeNameExtension;
 import sun.security.x509.X500Name;
 import sun.security.x509.X509CertImpl;
 import sun.security.x509.X509CertInfo;
+import sun.security.x509.CertificateExtensions;
+import sun.security.x509.GeneralNames;
+import sun.security.x509.GeneralName;
+import sun.security.x509.GeneralNameInterface;
+import sun.security.x509.DNSName;
+import sun.security.x509.IPAddressName;
+import sun.security.util.DerOutputStream;
 
 import javax.crypto.KeyGenerator;
 import javax.crypto.SecretKey;
@@ -188,6 +197,23 @@ private X509Certificate generateSelfSignedCertificate(KeyPair keyPair) throws Ce
         Date validTo = new Date(validFrom.getTime() + 50L * 365L * 24L * 60L * 60L * 1000L); //50 years
         CertificateValidity validity = new CertificateValidity(validFrom, validTo);
         certInfo.set(X509CertInfo.VALIDITY, validity);
+        
+        GeneralNameInterface dnsName = new DNSName("baeldung.com");
+        DerOutputStream dnsNameOutputStream = new DerOutputStream();
+        dnsName.encode(dnsNameOutputStream);
+        
+        GeneralNameInterface ipAddress = new IPAddressName("127.0.0.1");
+        DerOutputStream ipAddressOutputStream = new DerOutputStream();
+        ipAddress.encode(ipAddressOutputStream);
+        
+        GeneralNames generalNames = new GeneralNames();
+        generalNames.add(new GeneralName(dnsName));
+        generalNames.add(new GeneralName(ipAddress));
+        
+        CertificateExtensions ext = new CertificateExtensions();
+        ext.set(SubjectAlternativeNameExtension.NAME, new SubjectAlternativeNameExtension(generalNames));
+
+        certInfo.set(X509CertInfo.EXTENSIONS, ext);        
 
         // Create certificate and sign it
         X509CertImpl cert = new X509CertImpl(certInfo);
@@ -202,4 +228,5 @@ private X509Certificate generateSelfSignedCertificate(KeyPair keyPair) throws Ce
 
         return newCert;
     }
+
 }

core-java-collections/src/main/java/com/baeldung/findanelement/FindACustomerInGivenList.java renamed to core-java-collections-list/src/main/java/com/baeldung/findanelement/FindACustomerInGivenList.java

@@ -32,8 +32,8 @@ public Future<ResponseTransfer> getBlock() {
 
         return CompletableFuture.supplyAsync(() -> {
             try {
-                CompletableFuture<EthBlockNumber> result = web3Service.getBlockNumber();
-                responseTransfer.setMessage(result.get().toString());
+                EthBlockNumber result = web3Service.getBlockNumber();
+                responseTransfer.setMessage(result.toString());
             } catch (Exception e) {
                 responseTransfer.setMessage(GENERIC_EXCEPTION);
             }
@@ -51,8 +51,8 @@ public Future<ResponseTransfer> getAccounts() {
 
         return CompletableFuture.supplyAsync(() -> {
             try {
-                CompletableFuture<EthAccounts> result = web3Service.getEthAccounts();
-                responseTransfer.setMessage(result.get().toString());
+                EthAccounts result = web3Service.getEthAccounts();
+                responseTransfer.setMessage(result.toString());
             } catch (Exception e) {
                 responseTransfer.setMessage(GENERIC_EXCEPTION);
             }
@@ -70,8 +70,8 @@ public Future<ResponseTransfer> getTransactions() {
         Instant start = TimeHelper.start();
         return CompletableFuture.supplyAsync(() -> {
             try {
-                CompletableFuture<EthGetTransactionCount> result = web3Service.getTransactionCount();
-                responseTransfer.setMessage(result.get().toString());
+                EthGetTransactionCount result = web3Service.getTransactionCount();
+                responseTransfer.setMessage(result.toString());
             } catch (Exception e) {
                 responseTransfer.setMessage(GENERIC_EXCEPTION);
             }
@@ -88,8 +88,8 @@ public Future<ResponseTransfer> getBalance() {
         Instant start = TimeHelper.start();
         return CompletableFuture.supplyAsync(() -> {
             try {
-                CompletableFuture<EthGetBalance> result = web3Service.getEthBalance();
-                responseTransfer.setMessage(result.get().toString());
+                EthGetBalance result = web3Service.getEthBalance();
+                responseTransfer.setMessage(result.toString());
             } catch (Exception e) {
                 responseTransfer.setMessage(GENERIC_EXCEPTION);
             }