Merge branch 'master' into master

JGit/pom.xml

@@ -3,10 +3,11 @@
     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>
     <groupId>com.baeldung</groupId>
-    <artifactId>JGitSnippets</artifactId>
+    <artifactId>JGit</artifactId>
     <version>1.0-SNAPSHOT</version>
     <packaging>jar</packaging>
     <url>http://maven.apache.org</url>
+	<name>JGit</name>
 
     <parent>
         <groupId>com.baeldung</groupId>

Twitter4J/pom.xml

@@ -1,13 +1,9 @@
 <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/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
-
-    <groupId>com.mabsisa</groupId>
     <artifactId>Twitter4J</artifactId>
     <packaging>jar</packaging>
-    <version>1.0-SNAPSHOT</version>
     <name>Twitter4J</name>
-    <url>http://maven.apache.org</url>
 
     <parent>
         <groupId>com.baeldung</groupId>
@@ -23,27 +19,6 @@
         </dependency>
     </dependencies>
 
-    <build>
-        <finalName>${project.artifactId}</finalName>
-        <resources>
-            <resource>
-                <directory>src/main/resources</directory>
-            </resource>
-        </resources>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>${maven-surefire-plugin.version}</version>
-                <configuration>
-                    <excludes>
-                        <exclude>**/ApplicationTest.java</exclude>
-                    </excludes>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
-
     <properties>
         <twitter4j-stream.version>4.0.6</twitter4j-stream.version>
     </properties>

activejdbc/pom.xml

@@ -1,7 +1,6 @@
 <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>
-    <groupId>com.baeldung</groupId>
     <artifactId>activejdbc</artifactId>
     <version>1.0-SNAPSHOT</version>
     <packaging>jar</packaging>
@@ -79,55 +78,11 @@
                     </dependency>
                 </dependencies>
             </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>${maven-surefire-plugin.version}</version>
-                <configuration>
-                    <reportFormat>brief</reportFormat>
-                    <trimStackTrace>true</trimStackTrace>
-                    <useFile>false</useFile>
-                    <includes>
-                        <include>**/*Spec*.java</include>
-                        <include>**/*Test*.java</include>
-                    </includes>
-                    <excludes>
-                        <exclude>**/helpers/*</exclude>
-                        <exclude>**/*$*</exclude>
-                    </excludes>
-                </configuration>
-            </plugin>
         </plugins>
     </build>
 
-    <repositories>
-        <repository>
-            <id>snapshots1</id>
-            <name>JavaLite Snapshots1</name>
-            <url>http://repo.javalite.io/</url>
-            <snapshots>
-                <enabled>true</enabled>
-                <updatePolicy>always</updatePolicy>
-                <checksumPolicy>warn</checksumPolicy>
-            </snapshots>
-        </repository>
-    </repositories>
-
-    <pluginRepositories>
-        <pluginRepository>
-            <id>snapshots2</id>
-            <name>JavaLite Snapshots2</name>
-            <url>http://repo.javalite.io/</url>
-            <snapshots>
-                <enabled>true</enabled>
-                <updatePolicy>always</updatePolicy>
-                <checksumPolicy>warn</checksumPolicy>
-            </snapshots>
-        </pluginRepository>
-    </pluginRepositories>
-
     <properties>
-        <activejdbc.version>1.4.13</activejdbc.version>
+        <activejdbc.version>2.0</activejdbc.version>
         <environments>development.test,development</environments>
         <mysql.connector.version>5.1.34</mysql.connector.version>
     </properties>

activejdbc/src/main/java/com/baeldung/model/Employee.java

@@ -16,4 +16,8 @@ public class Employee extends Model {
         set("created_by",createdBy);
     }
 
+    public String getLastName() {
+        return getString("last_name");
+    }
+
 }

activejdbc/src/main/java/com/baeldung/model/Role.java

@@ -15,4 +15,8 @@ public class Role extends Model {
         set("role_name",role);
         set("created_by",createdBy);
     }
+
+    public String getRoleName() {
+        return getString("role_name");
+    }
 }

activejdbc/src/test/java/com/baeldung/ActiveJDBCAppManualTest.java

@@ -7,7 +7,7 @@ import org.junit.Test;
 
 import java.util.List;
 
-public class ActiveJDBCAppTest extends DBSpec
+public class ActiveJDBCAppManualTest extends DBSpec
 {
     @Test
     public void ifEmployeeCreated_thenIsValid() {

algorithms/roundUpToHundred/.gitignore

@@ -0,0 +1 @@
+/bin/

algorithms/roundUpToHundred/src/com/java/src/RoundUpToHundred.java

@@ -0,0 +1,20 @@
+package com.java.src;
+
+import java.util.Scanner;
+
+public class RoundUpToHundred {
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        double input = scanner.nextDouble();
+        scanner.close();
+
+        RoundUpToHundred.round(input);
+    }
+
+    static long round(double input) {
+        long i = (long) Math.ceil(input);
+        return ((i + 99) / 100) * 100;
+    };
+
+}

algorithms/roundUpToHundred/src/com/java/src/RoundUpToHundredTest.java

@@ -0,0 +1,14 @@
+package com.java.src;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+public class RoundUpToHundredTest {
+    @Test
+    public void givenInput_whenRound_thenRoundUpToTheNearestHundred() {
+        assertEquals("Rounded up to hundred", 100, RoundUpToHundred.round(99));
+        assertEquals("Rounded up to three hundred ", 300, RoundUpToHundred.round(200.2));
+        assertEquals("Returns same rounded value", 400, RoundUpToHundred.round(400));
+    }
+}

algorithms/src/main/java/com/baeldung/algorithms/distancebetweenpoints/DistanceBetweenPointsService.java

@@ -0,0 +1,38 @@
+package com.baeldung.algorithms.distancebetweenpoints;
+
+import java.awt.geom.Point2D;
+
+public class DistanceBetweenPointsService {
+
+    public double calculateDistanceBetweenPoints(
+        double x1, 
+        double y1, 
+        double x2, 
+        double y2) {
+        
+        return Math.sqrt((y2 - y1) * (y2 - y1) + (x2 - x1) * (x2 - x1));
+    }
+
+    public double calculateDistanceBetweenPointsWithHypot(
+        double x1, 
+        double y1, 
+        double x2, 
+        double y2) {
+        
+        double ac = Math.abs(y2 - y1);
+        double cb = Math.abs(x2 - x1);
+        
+        return Math.hypot(ac, cb);
+    }
+
+    public double calculateDistanceBetweenPointsWithPoint2D( 
+        double x1, 
+        double y1, 
+        double x2, 
+        double y2) {
+        
+        return Point2D.distance(x1, y1, x2, y2);
+
+    }
+
+}

algorithms/src/main/java/com/baeldung/algorithms/rectanglesoverlap/Point.java

@@ -0,0 +1,29 @@
+package com.baeldung.algorithms.rectanglesoverlap;
+
+public class Point {
+
+    private int x;
+    private int y;
+
+    public Point(int x, int y) {
+        this.x = x;
+        this.y = y;
+    }
+
+    public int getX() {
+        return x;
+    }
+
+    public void setX(int x) {
+        this.x = x;
+    }
+
+    public int getY() {
+        return y;
+    }
+
+    public void setY(int y) {
+        this.y = y;
+    }
+
+}

algorithms/src/main/java/com/baeldung/algorithms/rectanglesoverlap/Rectangle.java

@@ -0,0 +1,40 @@
+package com.baeldung.algorithms.rectanglesoverlap;
+
+public class Rectangle {
+
+    private Point bottomLeft;
+    private Point topRight;
+
+    public Rectangle(Point bottomLeft, Point topRight) {
+        this.bottomLeft = bottomLeft;
+        this.topRight = topRight;
+    }
+
+    public Point getBottomLeft() {
+        return bottomLeft;
+    }
+
+    public void setBottomLeft(Point bottomLeft) {
+        this.bottomLeft = bottomLeft;
+    }
+
+    public Point getTopRight() {
+        return topRight;
+    }
+
+    public void setTopRight(Point topRight) {
+        this.topRight = topRight;
+    }
+
+    public boolean isOverlapping(Rectangle other) {
+        // one rectangle is to the top of the other
+        if (this.topRight.getY() < other.bottomLeft.getY() || this.bottomLeft.getY() > other.topRight.getY()) {
+            return false;
+        }
+        // one rectangle is to the left of the other
+        if (this.topRight.getX() < other.bottomLeft.getX() || this.bottomLeft.getX() > other.topRight.getX()) {
+            return false;
+        }
+        return true;
+    }
+}

algorithms/src/test/java/com/baeldung/algorithms/distancebetweenpoints/DistanceBetweenPointsServiceUnitTest.java

@@ -0,0 +1,54 @@
+package com.baeldung.algorithms.distancebetweenpoints;
+
+import org.junit.Test;
+
+import com.baeldung.algorithms.distancebetweenpoints.DistanceBetweenPointsService;
+
+import static org.junit.Assert.assertEquals;
+
+public class DistanceBetweenPointsServiceUnitTest {
+
+    private DistanceBetweenPointsService service = new DistanceBetweenPointsService();
+
+    @Test
+    public void givenTwoPoints_whenCalculateDistanceByFormula_thenCorrect() {
+
+        double x1 = 3;
+        double y1 = 4;
+        double x2 = 7;
+        double y2 = 1;
+
+        double distance = service.calculateDistanceBetweenPoints(x1, y1, x2, y2);
+
+        assertEquals(distance, 5, 0.001);
+
+    }
+
+    @Test
+    public void givenTwoPoints_whenCalculateDistanceWithHypot_thenCorrect() {
+
+        double x1 = 3;
+        double y1 = 4;
+        double x2 = 7;
+        double y2 = 1;
+
+        double distance = service.calculateDistanceBetweenPointsWithHypot(x1, y1, x2, y2);
+
+        assertEquals(distance, 5, 0.001);
+
+    }
+
+    @Test
+    public void givenTwoPoints_whenCalculateDistanceWithPoint2D_thenCorrect() {
+
+        double x1 = 3;
+        double y1 = 4;
+        double x2 = 7;
+        double y2 = 1;
+
+        double distance = service.calculateDistanceBetweenPointsWithPoint2D(x1, y1, x2, y2);
+
+        assertEquals(distance, 5, 0.001);
+
+    }
+}

algorithms/src/test/java/com/baeldung/algorithms/rectanglesoverlap/RectangleUnitTest.java

@@ -0,0 +1,42 @@
+package com.baeldung.algorithms.rectanglesoverlap;
+
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.assertFalse;
+import org.junit.Test;
+
+import com.baeldung.algorithms.rectanglesoverlap.Point;
+import com.baeldung.algorithms.rectanglesoverlap.Rectangle;
+
+public class RectangleUnitTest {
+
+    @Test
+    public void givenTwoOverlappingRectangles_whenisOverlappingCalled_shouldReturnTrue() {
+        Rectangle rectangle1 = new Rectangle(new Point(2, 1), new Point(4, 3));
+        Rectangle rectangle2 = new Rectangle(new Point(1, 1), new Point(6, 4));
+        assertTrue(rectangle1.isOverlapping(rectangle2));
+
+        rectangle1 = new Rectangle(new Point(-5, -2), new Point(2, 3));
+        rectangle2 = new Rectangle(new Point(-2, -1), new Point(5, 2));
+        assertTrue(rectangle1.isOverlapping(rectangle2));
+
+        rectangle1 = new Rectangle(new Point(-5, 1), new Point(2, 4));
+        rectangle2 = new Rectangle(new Point(-2, -2), new Point(5, 5));
+        assertTrue(rectangle1.isOverlapping(rectangle2));
+    }
+
+    @Test
+    public void givenTwoNonOverlappingRectangles_whenisOverlappingCalled_shouldReturnFalse() {
+        Rectangle rectangle1 = new Rectangle(new Point(-5, 1), new Point(-3, 4));
+        Rectangle rectangle2 = new Rectangle(new Point(-2, -2), new Point(5, 5));
+        assertFalse(rectangle1.isOverlapping(rectangle2));
+
+        rectangle1 = new Rectangle(new Point(-5, 1), new Point(3, 4));
+        rectangle2 = new Rectangle(new Point(-2, -2), new Point(5, -1));
+        assertFalse(rectangle1.isOverlapping(rectangle2));
+
+        rectangle1 = new Rectangle(new Point(-2, 1), new Point(0, 3));
+        rectangle2 = new Rectangle(new Point(3, 1), new Point(5, 4));
+        assertFalse(rectangle1.isOverlapping(rectangle2));
+    }
+
+}

apache-avro/pom.xml

@@ -4,8 +4,9 @@
          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>
     <groupId>com.baeldung</groupId>
-    <artifactId>apache-avro-tutorial</artifactId>
+    <artifactId>apache-avro</artifactId>
     <version>0.0.1-SNAPSHOT</version>
+	<name>Apache Avro</version>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

apache-cxf/README.md

@@ -3,3 +3,4 @@
 - [Apache CXF Support for RESTful Web Services](http://www.baeldung.com/apache-cxf-rest-api)
 - [A Guide to Apache CXF with Spring](http://www.baeldung.com/apache-cxf-with-spring)
 - [Introduction to Apache CXF](http://www.baeldung.com/introduction-to-apache-cxf)
+- [Server-Sent Events (SSE) In JAX-RS](https://www.baeldung.com/java-ee-jax-rs-sse)

apache-cxf/sse-jaxrs/sse-jaxrs-server/pom.xml

@@ -20,7 +20,7 @@
     </properties>
 
     <build>
-        <finalName>${artifactId}</finalName>
+        <finalName>${project.artifactId}</finalName>
         <plugins>
             <plugin>
                 <groupId>net.wasdev.wlp.maven.plugins</groupId>

apache-shiro/pom.xml

@@ -3,7 +3,6 @@
          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>
-    <groupId>com.baeldung</groupId>
     <artifactId>apache-shiro</artifactId>
     <version>1.0-SNAPSHOT</version>
 
@@ -36,13 +35,11 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>jcl-over-slf4j</artifactId>
-            <version>${slf4j-version}</version>
             <scope>runtime</scope>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-log4j12</artifactId>
-            <version>${slf4j-version}</version>
             <scope>runtime</scope>
         </dependency>
         <dependency>
@@ -53,26 +50,9 @@
         </dependency>
     </dependencies>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>${maven-compiler-plugin.version}</version>
-                <configuration>
-                    <source>${java.version}</source>
-                    <target>${java.version}</target>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
-
     <properties>
         <apache-shiro-core-version>1.4.0</apache-shiro-core-version>
-        <maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
-        <java.version>1.8</java.version>
         <log4j-version>1.2.17</log4j-version>
-        <slf4j-version>1.7.25</slf4j-version>
     </properties>
 
 </project>

asm/pom.xml

@@ -42,14 +42,6 @@
                     </archive>
                 </configuration>
             </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>${maven-surefire-plugin.version}</version>
-                <configuration>
-                    <argLine>-javaagent:"C:\asm-1.0.jar"</argLine>
-                </configuration>
-            </plugin>
         </plugins>
     </build>
 

aws-lambda/pom.xml

@@ -95,7 +95,6 @@
         <gson.version>2.8.2</gson.version>
         <aws-java-sdk.version>1.11.241</aws-java-sdk.version>
         <maven-shade-plugin.version>3.0.0</maven-shade-plugin.version>
-        <maven-dependency-plugin.version>2.10</maven-dependency-plugin.version>
     </properties>
     
 </project>

aws/.gitignore

@@ -1 +1,2 @@
 /target/
+.idea/

aws/pom.xml

@@ -100,26 +100,6 @@
                     </execution>
                 </executions>
             </plugin>
-
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-dependency-plugin</artifactId>
-                <version>${maven-dependency-plugin.version}</version>
-                <executions>
-                    <execution>
-                        <id>copy-dependencies</id>
-                        <phase>test-compile</phase>
-                        <goals>
-                            <goal>copy-dependencies</goal>
-                        </goals>
-                        <configuration>
-                            <includeScope>test</includeScope>
-                            <includeTypes>so,dll,dylib</includeTypes>
-                            <outputDirectory>${project.basedir}/native-libs</outputDirectory>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
         </plugins>
     </build>
 
@@ -144,7 +124,6 @@
         <commons-codec-version>1.10.L001</commons-codec-version>
         <jets3t-version>0.9.4.0006L</jets3t-version>
         <maven-shade-plugin.version>3.0.0</maven-shade-plugin.version>
-        <maven-dependency-plugin.version>2.10</maven-dependency-plugin.version>
     </properties>
 
 </project>

aws/src/main/java/com/baeldung/rds/AWSRDSService.java

@@ -0,0 +1,184 @@
+package com.baeldung.rds;
+
+import com.amazonaws.auth.AWSCredentialsProvider;
+import com.amazonaws.auth.AWSStaticCredentialsProvider;
+import com.amazonaws.auth.BasicAWSCredentials;
+import com.amazonaws.regions.Regions;
+import com.amazonaws.services.rds.AmazonRDS;
+import com.amazonaws.services.rds.AmazonRDSClientBuilder;
+import com.amazonaws.services.rds.model.*;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.sql.*;
+import java.util.List;
+import java.util.Properties;
+import java.util.UUID;
+import java.util.logging.Logger;
+
+public class AWSRDSService {
+
+
+    final static Logger logger = Logger.getLogger(AWSRDSService.class.getName());
+    private AWSCredentialsProvider credentials;
+    private AmazonRDS amazonRDS;
+    private String db_username;
+    private String db_password;
+    private String db_database;
+    private String db_hostname;
+
+    /*
+    * User access key and secret key must be set before execute any operation.
+    * Follow the link on how to get the user access and secret key
+    * https://aws.amazon.com/blogs/security/wheres-my-secret-access-key/
+    * **/
+    public AWSRDSService() throws IOException {
+        //Init RDS client with credentials and region.
+        credentials = new
+                AWSStaticCredentialsProvider(new
+                BasicAWSCredentials("<ACCESS_KEY>",
+                "<SECRET_KEY>"));
+        amazonRDS = AmazonRDSClientBuilder.standard().withCredentials(credentials)
+                .withRegion(Regions.AP_SOUTHEAST_2).build();
+        Properties prop = new Properties();
+        InputStream input = AWSRDSService.class.getClassLoader().getResourceAsStream("db.properties");
+        prop.load(input);
+        db_username = prop.getProperty("db_username");
+        db_password = prop.getProperty("db_password");
+        db_database = prop.getProperty("db_database");
+    }
+
+    public AWSRDSService(AmazonRDS amazonRDS){
+        this.amazonRDS = amazonRDS;
+    }
+
+    /**
+     * create the RDS instance.
+     * After instance creation, update the db_hostname with endpoint in db.properties.
+     * */
+
+    public String launchInstance() {
+
+        String identifier = "";
+        CreateDBInstanceRequest request = new CreateDBInstanceRequest();
+        // RDS instance name
+        request.setDBInstanceIdentifier("Sydney");
+        request.setEngine("postgres");
+        request.setMultiAZ(false);
+        request.setMasterUsername(db_username);
+        request.setMasterUserPassword(db_password);
+        request.setDBName(db_database);
+        request.setStorageType("gp2");
+        request.setAllocatedStorage(10);
+
+        DBInstance instance = amazonRDS.createDBInstance(request);
+
+        // Information about the new RDS instance
+        identifier = instance.getDBInstanceIdentifier();
+        String status = instance.getDBInstanceStatus();
+        Endpoint endpoint = instance.getEndpoint();
+        String endpoint_url = "Endpoint URL not available yet.";
+        if (endpoint != null) {
+            endpoint_url = endpoint.toString();
+        }
+        logger.info(identifier + "\t" + status);
+        logger.info(endpoint_url);
+
+        return identifier;
+
+    }
+
+    // Describe DB instances
+    public void listInstances() {
+        DescribeDBInstancesResult result = amazonRDS.describeDBInstances();
+        List<DBInstance> instances = result.getDBInstances();
+        for (DBInstance instance : instances) {
+            // Information about each RDS instance
+            String identifier = instance.getDBInstanceIdentifier();
+            String engine = instance.getEngine();
+            String status = instance.getDBInstanceStatus();
+            Endpoint endpoint = instance.getEndpoint();
+            String endpoint_url = "Endpoint URL not available yet.";
+            if (endpoint != null) {
+                endpoint_url = endpoint.toString();
+            }
+            logger.info(identifier + "\t" + engine + "\t" + status);
+            logger.info("\t" + endpoint_url);
+        }
+
+    }
+
+    //Delete RDS instance
+    public void terminateInstance(String identifier) {
+
+        DeleteDBInstanceRequest request = new DeleteDBInstanceRequest();
+        request.setDBInstanceIdentifier(identifier);
+        request.setSkipFinalSnapshot(true);
+
+        // Delete the RDS instance
+        DBInstance instance = amazonRDS.deleteDBInstance(request);
+
+        // Information about the RDS instance being deleted
+        String status = instance.getDBInstanceStatus();
+        Endpoint endpoint = instance.getEndpoint();
+        String endpoint_url = "Endpoint URL not available yet.";
+        if (endpoint != null) {
+            endpoint_url = endpoint.toString();
+        }
+
+        logger.info(identifier + "\t" + status);
+        logger.info(endpoint_url);
+
+    }
+
+
+    public void runJdbcTests() throws SQLException, IOException {
+
+        // Getting database properties from db.properties
+        Properties prop = new Properties();
+        InputStream input = AWSRDSService.class.getClassLoader().getResourceAsStream("db.properties");
+        prop.load(input);
+        db_hostname = prop.getProperty("db_hostname");
+        String jdbc_url = "jdbc:postgresql://" + db_hostname + ":5432/" + db_database;
+
+        // Create a connection using the JDBC driver
+        try (Connection conn = DriverManager.getConnection(jdbc_url, db_username, db_password)) {
+
+            // Create the test table if not exists
+            Statement statement = conn.createStatement();
+            String sql = "CREATE TABLE IF NOT EXISTS jdbc_test (id SERIAL PRIMARY KEY, content VARCHAR(80))";
+            statement.executeUpdate(sql);
+
+            // Do some INSERT
+            PreparedStatement preparedStatement = conn.prepareStatement("INSERT INTO jdbc_test (content) VALUES (?)");
+            String content = "" + UUID.randomUUID();
+            preparedStatement.setString(1, content);
+            preparedStatement.executeUpdate();
+            logger.info("INSERT: " + content);
+
+            // Do some SELECT
+            sql = "SELECT  * FROM jdbc_test";
+            ResultSet resultSet = statement.executeQuery(sql);
+            while (resultSet.next()) {
+                String count = resultSet.getString("content");
+                logger.info("Total Records: " + count);
+            }
+        }
+
+
+    }
+
+    public static void main(String[] args) throws IOException, SQLException {
+        AWSRDSService awsrdsService = new AWSRDSService();
+
+        String instanceName = awsrdsService.launchInstance();
+
+        //Add some wait for instance creation.
+
+        awsrdsService.listInstances();
+
+        awsrdsService.runJdbcTests();
+
+        awsrdsService.terminateInstance(instanceName);
+    }
+}

aws/src/main/resources/db.properties

@@ -0,0 +1,4 @@
+db_hostname=<RDS EndPoint>
+db_username=username
+db_password=password
+db_database=mydb

cas/cas-secured-app/pom.xml

@@ -2,12 +2,10 @@
 <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>
-    <groupId>com.baeldung</groupId>
     <artifactId>cas-secured-app</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
     <packaging>jar</packaging>
     <name>cas-secured-app</name>
-    <description>Demo project for Spring Boot</description>
+    <description>Demo project for CAS</description>
 
     <parent>
         <artifactId>parent-boot-1</artifactId>
@@ -60,10 +58,4 @@
         </plugins>
     </build>
 
-    <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <java.version>1.8</java.version>
-    </properties>
-
 </project>

cas/cas-server/pom.xml

@@ -2,11 +2,17 @@
 <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>
-    <groupId>com.baeldung</groupId>
     <artifactId>cas-server</artifactId>
     <packaging>war</packaging>
     <version>1.0</version>
 
+    <parent>
+        <artifactId>parent-boot-1</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-boot-1</relativePath>
+    </parent>
+    
     <dependencies>
         <dependency>
             <groupId>org.apereo.cas</groupId>
@@ -39,7 +45,6 @@
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
-                <version>${springboot.version}</version>
                 <configuration>
                     <mainClass>${mainClassName}</mainClass>
                     <addResources>true</addResources>
@@ -74,42 +79,10 @@
                     </overlays>
                 </configuration>
             </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>${maven-compiler-plugin.version}</version>
-            </plugin>
         </plugins>
         <finalName>cas</finalName>
     </build>
 
-    <repositories>
-        <repository>
-            <id>sonatype-releases</id>
-            <url>http://oss.sonatype.org/content/repositories/releases/</url>
-            <snapshots>
-                <enabled>false</enabled>
-            </snapshots>
-            <releases>
-                <enabled>true</enabled>
-            </releases>
-        </repository>
-        <repository>
-            <id>sonatype-snapshots</id>
-            <url>https://oss.sonatype.org/content/repositories/snapshots/</url>
-            <snapshots>
-                <enabled>true</enabled>
-            </snapshots>
-            <releases>
-                <enabled>false</enabled>
-            </releases>
-        </repository>
-        <repository>
-            <id>shibboleth-releases</id>
-            <url>https://build.shibboleth.net/nexus/content/repositories/releases</url>
-        </repository>
-    </repositories>
-
     <profiles>
         <profile>
             <activation>
@@ -214,8 +187,7 @@
     </profiles>
 
     <properties>
-        <cas.version>5.3.0-SNAPSHOT</cas.version>
-        <springboot.version>1.5.13.RELEASE</springboot.version>
+        <cas.version>5.3.3</cas.version>
         <!-- app.server could be -jetty, -undertow, -tomcat, or blank if you plan to provide appserver -->
         <app.server>-tomcat</app.server>
 
@@ -223,14 +195,12 @@
         <isExecutable>false</isExecutable>
         <manifestFileToUse>${project.build.directory}/war/work/org.apereo.cas/cas-server-webapp${app.server}/META-INF/MANIFEST.MF</manifestFileToUse>
 
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <wrapper-maven-plugin.version>0.0.4</wrapper-maven-plugin.version>
         <maven-war-plugin.version>2.6</maven-war-plugin.version>
         <maven-compiler-plugin.version>3.3</maven-compiler-plugin.version>
+        
         <echo-maven-plugin.version>0.3.0</echo-maven-plugin.version>
         <pgpverify-maven-plugin.version>1.1.0</pgpverify-maven-plugin.version>
     </properties>
 
-</project>
+</project>

checker-plugin/pom.xml

@@ -41,27 +41,6 @@
 
     <build>
         <plugins>
-            <plugin>
-                <!-- This plugin will set properties values using dependency information -->
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-dependency-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <goals>
-                            <!--
-                            Goal that sets a property pointing to the artifact file for each project dependency.
-                            For each dependency (direct and transitive) a project property will be set which
-                            follows the:
-
-                               groupId:artifactId:type:[classifier]
-
-                            form and contains the path to the resolved artifact. -->
-                            <goal>properties</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
-
             <plugin>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>${maven-compiler-plugin.version}</version>

core-java-8/README.md

@@ -29,3 +29,6 @@
 - [Java 8 Unsigned Arithmetic Support](http://www.baeldung.com/java-unsigned-arithmetic)
 - [Generalized Target-Type Inference in Java](http://www.baeldung.com/java-generalized-target-type-inference)
 - [Overriding System Time for Testing in Java](http://www.baeldung.com/java-override-system-time)
+- [Set the Time Zone of a Date in Java](https://www.baeldung.com/java-set-date-time-zone)
+- [An Overview of Regular Expressions Performance in Java](https://www.baeldung.com/java-regex-performance)
+- [Java Primitives versus Objects](https://www.baeldung.com/java-primitives-vs-objects)

core-java-8/pom.xml

@@ -116,23 +116,6 @@
         </resources>
 
         <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-dependency-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <id>copy-dependencies</id>
-                        <phase>prepare-package</phase>
-                        <goals>
-                            <goal>copy-dependencies</goal>
-                        </goals>
-                        <configuration>
-                            <outputDirectory>${project.build.directory}/libs</outputDirectory>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>

core-java-9/README.md

@@ -24,3 +24,5 @@
 - [Optional orElse Optional](http://www.baeldung.com/java-optional-or-else-optional)
 - [Java 9 java.lang.Module API](http://www.baeldung.com/java-9-module-api)
 - [Iterate Through a Range of Dates in Java](https://www.baeldung.com/java-iterate-date-range)
+- [Initialize a HashMap in Java](https://www.baeldung.com/java-initialize-hashmap)
+- [Java 9 Platform Logging API](https://www.baeldung.com/java-9-logging-api)