[BAEL-2073] Java 9 Migration Issues and Resolution

prejpms/pom.xml

@@ -0,0 +1,73 @@
+<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>prejpms</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>jar</packaging>
+	<name>pre-jpms</name>
+
+    <parent>
+        <artifactId>parent-modules</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-api</artifactId>
+			<version>1.7.25</version>
+		</dependency>
+	</dependencies>
+	<build>
+		<finalName>pre-jpms</finalName>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>3.8.0</version>
+				<configuration>
+					<source>1.8</source>
+					<target>1.8</target>
+				</configuration>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-dependency-plugin</artifactId>
+				<version>3.1.1</version>
+				<executions>
+					<execution>
+						<id>copy-dependencies</id>
+						<phase>package</phase>
+						<goals>
+							<goal>copy-dependencies</goal>
+						</goals>
+						<configuration>
+							<outputDirectory>
+								${project.build.directory}/dependency-jars/
+							</outputDirectory>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-jar-plugin</artifactId>
+				<configuration>
+					<archive>
+						<manifest>
+							<mainClass>com.baeldung.prejpms.App</mainClass>
+							<addClasspath>true</addClasspath>
+							<classpathPrefix>dependency-jars/</classpathPrefix>
+						</manifest>
+					</archive>
+				</configuration>
+			</plugin>
+
+		</plugins>
+	</build>
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+	</properties>
+</project>

prejpms/src/main/java/com/baeldung/prejpms/App.java

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+package com.baeldung.prejpms;
+
+import java.io.StringWriter;
+
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Marshaller;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.sun.crypto.provider.SunJCE;
+
+import sun.misc.BASE64Encoder;
+import sun.reflect.Reflection;
+
+public class App {
+
+    private static final Logger logger = LoggerFactory.getLogger(App.class);
+
+    public static void main(String[] args) throws Exception {
+
+        getCrytpographyProviderName();
+        getCallStackClassNames();
+        getXmlFromObject(new Book(100, "Java Modules Architecture"));
+        getBase64EncodedString("Java");
+    }
+
+    private static void getCrytpographyProviderName() {
+        try {
+            logger.info("1. Java Cryptography Extension - Provider Name: " + new SunJCE().getName() + "\n");
+        } catch (Throwable e) {
+            logger.error(e.toString());
+        }
+    }
+
+    private static void getCallStackClassNames() {
+        try {
+            int i = 0;
+            StringBuffer sbStack = new StringBuffer();
+            while (true) {
+                Class<?> caller = Reflection.getCallerClass(i++);
+                if (caller == null) {
+                    break;
+                } else {
+                    sbStack.append(caller.getName())
+                        .append("\n");
+                }
+            }
+            logger.info("2. Call Stack Class Names:\n" + sbStack.toString());
+        } catch (Throwable e) {
+            logger.error(e.toString());
+        }
+    }
+
+    private static void getXmlFromObject(Book book) {
+        try {
+            Marshaller marshallerObj = JAXBContext.newInstance(Book.class)
+                .createMarshaller();
+            marshallerObj.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
+
+            StringWriter sw = new StringWriter();
+            marshallerObj.marshal(book, sw);
+            logger.info("3. Xml for Book object:\n" + sw);
+        } catch (Throwable e) {
+            logger.error(e.toString());
+        }
+
+    }
+
+    private static void getBase64EncodedString(String inputString) {
+        try {
+            String encodedString = new BASE64Encoder().encode(inputString.getBytes());
+            logger.info("4. Base Encoded String: " + encodedString);
+        } catch (Throwable e) {
+            logger.error(e.toString());
+        }
+    }
+}

prejpms/src/main/java/com/baeldung/prejpms/Book.java

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+package com.baeldung.prejpms;
+
+import javax.xml.bind.annotation.XmlAttribute;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "book")
+public class Book {
+    private long id;
+    private String name;
+
+    public Book() {
+        
+    }
+    
+    public Book(long id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    @XmlAttribute
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    @XmlElement(name = "title")
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+}

prejpms/src/main/resources/logback.xml

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+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>[%level] %msg%n</pattern>
+        </encoder>
+    </appender>
+    <root level="debug">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>