[BAEL-2073] Java 9 Migration Issues and Resolution

core-java-modules/pre-jpms/src/main/java/com/baeldung/prejpms/App.java

@@ -0,0 +1,77 @@
+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. JCE Provider Name: {}\n", new SunJCE().getName());
+        } catch (Throwable e) {
+            LOGGER.error(e.toString());
+        }
+    }
+
+    private static void getCallStackClassNames() {
+        try {
+            StringBuffer sbStack = new StringBuffer();
+            int i = 0;
+            Class<?> caller = Reflection.getCallerClass(i++);
+            do {
+                sbStack.append(i + ".")
+                    .append(caller.getName())
+                    .append("\n");
+                caller = Reflection.getCallerClass(i++);
+            } while (caller != null);
+            LOGGER.info("2. Call Stack:\n{}", sbStack);
+        } 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());
+        }
+    }
+}

core-java-modules/pre-jpms/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;
+    }
+}

core-java-modules/pre-jpms/src/main/resources/logback.xml

@@ -0,0 +1,10 @@
+<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>