https://byteslounge.com Java articles, how-to's, examples and tutorials https://www.byteslounge.com/tutorials/lock-conditions-in-java This article covers lock waiting conditions in Java (java.util.concurrent.locks.Condition) Thu, 26 Nov 2015 16:58:06 GMT https://www.byteslounge.com/tutorials/read-write-locks-in-java-reentrantreadwritelock This article covers Read/Write locks in Java (ReentrantReadWriteLock implementation) Sun, 18 Oct 2015 14:16:01 GMT https://www.byteslounge.com/tutorials/locking-in-jpa-lockmodetype This article covers the optimistic and pessimistic locking mechanisms available in the Java Persistence API (using LockModeType) Sun, 30 Aug 2015 16:23:01 GMT https://www.byteslounge.com/tutorials/jpa-entity-versioning-version-and-optimistic-locking This article covers database optimistic locking in general and also demonstrates how to implement optimistic locking in Java Persistence API (JPA) entities by using the @Version annotation Wed, 29 Jul 2015 16:57:06 GMT https://www.byteslounge.com/tutorials/jpa-onetoone-generates-additional-queries This article explains why do the Java Persistence API (JPA) often generates additional queries while dealing with OneToOne relationships Fri, 26 Jun 2015 16:37:08 GMT https://www.byteslounge.com/tutorials/java-ee-ejb-concurrency-concurrencymanagement-lock-and-locktype This article will cover EJB concurrent access configuration (both container and bean managed) resorting to Lock, LockType and ConcurrencyManagement primitives. Sun, 31 May 2015 17:01:08 GMT https://www.byteslounge.com/tutorials/jpa-extended-persistence-context In this article we will cover the differences between TRANSACTION and EXTENDED Persistence Context (Entity Manager). Sun, 19 Apr 2015 06:35:45 GMT https://www.byteslounge.com/tutorials/asynchronous-servlets-in-java In this article we will cover Asynchronous Servlets in Java. We will also implement a use case that demonstrates the concrete advantages of asynchronous processing with servlets. Wed, 18 Feb 2015 19:02:41 GMT https://www.byteslounge.com/tutorials/container-vs-application-managed-entitymanager In this article we will cover Container vs Application Managed EntityManager (Persistence Context) and its relationship with JTA or RESOURCE LOCAL transaction management. Thu, 22 Jan 2015 18:08:36 GMT https://www.byteslounge.com/tutorials/package-jsf-flow-in-a-jar-file In this article we will see how to package a JSF Flow in a JAR file. Fri, 02 Jan 2015 11:55:01 GMT https://www.byteslounge.com/tutorials/java-visitor-pattern In this article we will see how to implement the Visitor design pattern in Java. Sun, 21 Dec 2014 11:14:05 GMT https://www.byteslounge.com/tutorials/java-8-date-time-api In this article we will cover the Java 8 Date Time API. Mon, 24 Nov 2014 14:43:26 GMT https://www.byteslounge.com/tutorials/jdk-dynamic-proxies In this article we will cover JDK Dynamic Proxies along with their contribution to the Aspect Oriented Programming paradigm Sat, 08 Nov 2014 06:34:21 GMT https://www.byteslounge.com/tutorials/java-8-collect In this article we will see how to use the collect operation over Java 8 streams in order to implement functional style programming reductions. Sun, 26 Oct 2014 19:02:12 GMT https://www.byteslounge.com/tutorials/java-8-reduction In this article we will cover functional programming style reductions introduced by Java 8. Wed, 15 Oct 2014 19:05:15 GMT https://www.byteslounge.com/tutorials/java-8-parallel-streams In this article we will cover Java 8 Parallel Streams. Tue, 30 Sep 2014 20:34:19 GMT https://www.byteslounge.com/tutorials/java-8-streams In this article we will cover Java 8 Streams. Wed, 17 Sep 2014 16:14:36 GMT https://www.byteslounge.com/tutorials/java-8-optional In this article we will cover Java 8 Optional. Sat, 02 Aug 2014 12:01:09 GMT https://www.byteslounge.com/tutorials/jsf-nested-flows In this article we will cover JSF nested flows: How to call a nested flow, pass parameters into the flow and return to the main flow. Sun, 27 Jul 2014 18:22:14 GMT https://www.byteslounge.com/tutorials/java-8-consumer-and-supplier In this article we will cover Java 8 Consumer and Supplier interfaces. Thu, 17 Jul 2014 06:55:28 GMT https://www.byteslounge.com/tutorials/java-8-predicates-and-functions In this article we will cover Java 8 Predicate and Function interfaces. Sat, 12 Jul 2014 06:51:18 GMT https://www.byteslounge.com/tutorials/java-8-method-references In this article we will cover Java 8 method references. Wed, 02 Jul 2014 18:11:36 GMT https://www.byteslounge.com/tutorials/java-8-lambda-expressions-example In this article we will cover Java 8 Lambda expressions. Sat, 31 May 2014 10:02:55 GMT https://www.byteslounge.com/tutorials/java-8-interface-default-methods-example In this article we will cover Java 8 interface default methods. Thu, 15 May 2014 15:50:15 GMT https://www.byteslounge.com/tutorials/ejb-multiple-datasource-transaction-example In this article we will see how to configure EJB transactions across multiple datasources Thu, 08 May 2014 14:28:06 GMT https://www.byteslounge.com/tutorials/how-to-install-java-8-in-eclipse-ide In this article we will configure Java 8 in Eclipse IDE. Fri, 02 May 2014 14:49:04 GMT https://www.byteslounge.com/tutorials/java-ee-cdi-extension-example In this article we will see how to implement a Java EE CDI portable extension from scratch. CDI extensions are used mainly by framework developers (ex: Apache DeltaSpike project, the former MyFaces CODI). Sat, 26 Apr 2014 17:21:18 GMT https://www.byteslounge.com/tutorials/java-adapter-pattern-example In this tutorial we will see how to implement the Adapter design pattern in Java. Wed, 16 Apr 2014 17:29:59 GMT https://www.byteslounge.com/tutorials/java-ee-add-cdi-interceptor-programmatically In this article we will see how to programmatically add a CDI interceptor to a CDI managed bean. Tue, 08 Apr 2014 06:39:04 GMT https://www.byteslounge.com/tutorials/java-builder-pattern-example In this tutorial we will see how to implement the Builder design pattern in Java. Thu, 20 Mar 2014 18:29:09 GMT https://www.byteslounge.com/tutorials/jsf-composite-component-example In this article we will implement a custom composite component in JSF. Thu, 13 Mar 2014 19:47:26 GMT https://www.byteslounge.com/tutorials/java-strategy-pattern-example In this article we will see how to implement the Strategy design pattern in Java. Wed, 05 Mar 2014 15:46:39 GMT https://www.byteslounge.com/tutorials/java-ee-7-cdi-bean-scopes In this article we will cover the CDI bean scopes that were introduced by Java EE 7. Wed, 26 Feb 2014 18:13:54 GMT https://www.byteslounge.com/tutorials/java-ee-cdi-viewscoped-example In this tutorial we will cover the Java EE CDI ViewScoped scope. Thu, 20 Feb 2014 17:25:04 GMT https://www.byteslounge.com/tutorials/jsf-flow-example In this tutorial configure and implement a JSF Flow. Thu, 13 Feb 2014 17:45:28 GMT https://www.byteslounge.com/tutorials/java-ee-cdi-transactionscoped-example In this article we will cover the Java EE CDI TransactionScoped scope. Wed, 05 Feb 2014 15:34:18 GMT https://www.byteslounge.com/tutorials/java-abstract-factory-pattern-example In this tutorial we will see how to implement the Abstract Factory design pattern in Java. Wed, 29 Jan 2014 18:17:08 GMT https://www.byteslounge.com/tutorials/java-factory-pattern-example In this tutorial we will see how to implement the Factory design pattern in Java. Wed, 22 Jan 2014 14:50:02 GMT https://www.byteslounge.com/tutorials/how-to-compress-response-html-in-java-web-application In this tutorial we will how to compress (or minify) the response HTML in a Java web application. Thu, 16 Jan 2014 18:41:18 GMT https://www.byteslounge.com/tutorials/jsf-datatable-example In this tutorial we will see how to present tabular data using JSF dataTable component. Wed, 08 Jan 2014 17:28:48 GMT https://www.byteslounge.com/tutorials/invalidisolationlevelexception-standard-jpa-does-not-support-custom-isolation-levels-use-a-special-jpadialect-for-your-jpa-implementation In this article we will see how to fix InvalidIsolationLevelException: Standard JPA does not support custom isolation levels - use a special JpaDialect for your JPA implementation. Thu, 02 Jan 2014 17:29:06 GMT https://www.byteslounge.com/tutorials/spring-change-transaction-isolation-level-example In this article we will see how to effectively change Spring transaction isolation level, together with JPA, while avoiding InvalidIsolationLevelException: Standard JPA does not support custom isolation levels - use a special JpaDialect for your JPA implementation. Thu, 02 Jan 2014 16:38:40 GMT https://www.byteslounge.com/tutorials/spring-jpa-hibernate-example In this tutorial we will configure Spring with JPA using Hibernate as our JPA implementation. Fri, 27 Dec 2013 12:43:02 GMT https://www.byteslounge.com/tutorials/java-lock-example In this tutorial we will see how to synchronize access to shared resources using a Lock implementation in Java. Wed, 18 Dec 2013 16:50:49 GMT https://www.byteslounge.com/tutorials/spring-aop-pointcut-advice-example In this tutorial we will see how to configure Spring AOP pointcuts and advices with parameter binding through supported AspectJ annotations. Thu, 12 Dec 2013 18:35:59 GMT https://www.byteslounge.com/tutorials/spring-aop-example In this tutorial we will see how to use Spring AOP through supported AspectJ annotations. Thu, 05 Dec 2013 18:46:31 GMT https://www.byteslounge.com/tutorials/java-volatile-example In this tutorial we will see how to use the volatile keyword in Java. Thu, 28 Nov 2013 17:53:16 GMT https://www.byteslounge.com/tutorials/jsf-panelgrid-example In this tutorial we will see how to use JSF panelGrid in order to position other components in a table layout. Fri, 22 Nov 2013 09:18:08 GMT https://www.byteslounge.com/tutorials/jsf-panelgroup-example In this tutorial we will see how to use JSF panelGroup as a container to other JSF components. Fri, 22 Nov 2013 09:04:23 GMT https://www.byteslounge.com/tutorials/java-explicit-lock-example In this tutorial we will implement an explicit lock in Java using the synchronized statement together with the wait/notify idiom. Sun, 17 Nov 2013 18:38:17 GMT https://www.byteslounge.com/tutorials/java-synchronized-example In this tutorial we will see how to use the synchronized modifier in Java. Sat, 09 Nov 2013 11:48:28 GMT https://www.byteslounge.com/tutorials/jsf-commandbutton-example This tutorial belongs to a series of articles that will describe the available UI controls and components in JSF. In this article we will cover JSF commandButton. Sat, 02 Nov 2013 15:53:12 GMT https://www.byteslounge.com/tutorials/how-to-cache-component-rendering-in-jsf-example In this tutorial we will see how to cache component rendering in JSF. Tue, 29 Oct 2013 18:10:29 GMT https://www.byteslounge.com/tutorials/how-to-remove-included-resources-in-jsf-example In this tutorial we will see how to remove included resources (like JavaScript and CSS style sheets) in JSF. Wed, 23 Oct 2013 16:52:38 GMT https://www.byteslounge.com/tutorials/how-to-configure-jsf-in-tomcat-example In this tutorial we will see how to configure JSF in Tomcat. Fri, 18 Oct 2013 16:03:49 GMT https://www.byteslounge.com/tutorials/android-fixed-header-and-footer-with-scrollable-content-layout-example In this tutorial we will create an Android fixed Header and Footer with scrollable content activity layout. Sat, 05 Oct 2013 09:41:17 GMT https://www.byteslounge.com/tutorials/android-header-and-footer-layout-example In this tutorial we will create an Android Header and Footer activity layout. Sun, 29 Sep 2013 17:42:49 GMT https://www.byteslounge.com/tutorials/how-to-configure-multiple-java-web-applications-in-new-relic In this tutorial we will see how to configure multiple Java web applications in New Relic Sat, 21 Sep 2013 07:33:00 GMT https://www.byteslounge.com/tutorials/java-ee-html5-websockets-encoder-and-decoder-example In this tutorial we will implement a Java EE ServerEndpoint message Encoder and Decoder in order to convert HTML5 websocket messages into Java objects (and also the reverse operation of converting Java objects into ready to be sent websocket messages). Tue, 10 Sep 2013 18:41:15 GMT https://www.byteslounge.com/tutorials/jaas-logout-example In this tutorial we will see how to logout users authenticated via JAAS. Sat, 31 Aug 2013 11:38:46 GMT https://www.byteslounge.com/tutorials/java-ee-html5-websockets-with-multiple-clients-example In this tutorial we will implement a message broadcast sample application using only HTML5 websockets. The server-side will be implemented with Java EE ServerEndpoint. Thu, 22 Aug 2013 15:44:58 GMT https://www.byteslounge.com/tutorials/java-ee-html5-websocket-example In this tutorial we will implement an HTML5 websocket resorting to the Java EE websocket implementation (ServerEndpoint). Mon, 12 Aug 2013 15:07:43 GMT https://www.byteslounge.com/tutorials/android-application-not-installed-java-lang-securityexception-invalid-digest-for-or-package-has-no-certificates-at-entry How to solve Android 'Application not Installed' caused by java.lang.SecurityException [invalid digest for] or [Package ... has no certificates at entry] when we sign an Android APK and install it in an Android device. Wed, 07 Aug 2013 09:31:47 GMT https://www.byteslounge.com/tutorials/ejb-passivation-and-activation-example In this tutorial we will cover Java EE Stateful Session Bean passivation and activation mechanism. Mon, 05 Aug 2013 07:48:13 GMT https://www.byteslounge.com/tutorials/java-ee-stateful-session-bean-ejb-example In this tutorial we will see how to create a simple Stateful Session Bean (EJB) and use it in a web application context, more precisely a Java Servlet. Wed, 31 Jul 2013 17:26:48 GMT https://www.byteslounge.com/tutorials/java-ee-ejb-transaction-propagation-transactionattribute-tutorial In this tutorial we will see the available transaction propagation behaviours provided by the EJB container using @TransactionAttribute annotation. Mon, 08 Jul 2013 16:11:18 GMT https://www.byteslounge.com/tutorials/java-ee-ejb-interceptors-tutorial-and-example In this tutorial you will learn how to configure EJB Interceptors used to - as the name states - intercept calls to EJB methods. Sun, 30 Jun 2013 19:06:03 GMT https://www.byteslounge.com/tutorials/java-ee-cdi-inject-beans-from-external-3rd-party-libraries-example In this tutorial we will see how to inject beans from external - or 3d party - libraries in Java EE CDI Sun, 23 Jun 2013 15:15:32 GMT https://www.byteslounge.com/tutorials/spring-jta-multiple-resource-transactions-in-tomcat-with-atomikos-example In this tutorial you will learn how to configure a JTA transaction manager outside an enterprise container - using the Spring framework and Atomikos, both deployed in Tomcat - in order to implement distributed multiple resource (or XA) transactions. Mon, 17 Jun 2013 19:27:46 GMT https://www.byteslounge.com/tutorials/java-ee-cdi-programmatic-dependency-disabiguation-example-injection-point-inspection In this tutorial we will see how to implement Java EE CDI dependency disambiguation in a programmatic (or dynamic) way by inspecting injection points. The same applies for programmatic dependency resolution at runtime. Sat, 08 Jun 2013 13:08:29 GMT https://www.byteslounge.com/tutorials/java-ee-cdi-dependency-disambiguation-example In this tutorial you will learn how to inject multiple interface implementations with Java EE CDI (dependency disambiguation) avoiding org.jboss.weld.exceptions.DeploymentException: WELD-001409 Ambiguous dependencies for type [...] with qualifiers [...] at injection point [...] Sat, 01 Jun 2013 09:30:38 GMT https://www.byteslounge.com/tutorials/java-ee-cdi-dependency-injection-inject-tutorial In this tutorial you will learn about the different ways to use @Inject annotation in order to perform Dependency Injection with Java EE CDI. Sat, 25 May 2013 08:32:11 GMT https://www.byteslounge.com/tutorials/java-ee-cdi-beans-deployed-in-external-library-web-inf-lib-jar-file In this tutorial we will see how to deploy CDI beans contained in an external JAR file avoiding org.jboss.weld.exceptions.DeploymentException: WELD-001408 Unsatisfied dependencies for type [...] with qualifiers [@...] at injection point ... exception. Mon, 20 May 2013 17:27:05 GMT https://www.byteslounge.com/tutorials/modal-popup-from-android-widget-example In this tutorial you will learn how to open a modal popup (or dialog) from an Android home screen widget. Sat, 11 May 2013 12:36:20 GMT https://www.byteslounge.com/tutorials/java-ee-cdi-disposer-methods-example In this tutorial you will learn how to use CDI Disposer methods in order to perform clean up of resources created by CDI Producer methods. Sat, 04 May 2013 11:43:00 GMT https://www.byteslounge.com/tutorials/java-ee-cdi-producer-methods-tutorial In this tutorial you will learn how to use CDI Producer methods in order to provide a flexible bean initialization mechanism. Concepts like polymorphism, disambiguation and CDI scopes will also be discussed as we proceed in the tutorial. Sat, 27 Apr 2013 12:36:53 GMT https://www.byteslounge.com/tutorials/postfix-opendkim-dkim-configuration-example In this tutorial you will learn how to configure Postfix together with OpenDKIM in order to send signed messages according to DomainKeys Identified Mail (DKIM). Sat, 20 Apr 2013 07:59:06 GMT https://www.byteslounge.com/tutorials/java-ee-cdi-conversationscoped-example In this tutorial you will learn how to use ConversationScoped CDI beans. Sat, 13 Apr 2013 10:57:55 GMT https://www.byteslounge.com/tutorials/cdi-bean-scopes In this tutorial you will learn in detail about the distinct bean scopes provided by CDI and how to use them. Sat, 06 Apr 2013 10:16:01 GMT https://www.byteslounge.com/tutorials/postfix-dovecot-ssl-configuration-example In this tutorial you will learn how to configure Postfix integrated with Dovecot. Dovecot will be used for user authentication and POP3 service. We will also configure our services to be available over SSL. Sat, 30 Mar 2013 16:22:05 GMT https://www.byteslounge.com/tutorials/configuring-cdi-with-tomcat-example In this tutorial you will learn how to configure Contexts and Dependency Injection (CDI) with Tomcat. Sat, 23 Mar 2013 14:08:23 GMT https://www.byteslounge.com/tutorials/spring-mvc-requestmapping-consumes-condition-example In this tutorial you will learn how to use @RequestMapping annotation together with the "consumes" condition to handle distinct HTTP request content-types by distinct Controller methods. Sat, 16 Mar 2013 14:27:15 GMT https://www.byteslounge.com/tutorials/postfix-mail-server-configuration-tutorial In this tutorial you will learn how to deploy a simple configuration of Postfix Mail Server. Sat, 09 Mar 2013 10:02:48 GMT https://www.byteslounge.com/tutorials/jaas-form-based-authentication-in-tomcat-example In this tutorial you will learn how to configure JAAS form based authentication in Tomcat. Sun, 03 Mar 2013 14:47:05 GMT https://www.byteslounge.com/tutorials/jaas-authentication-in-tomcat-example In this tutorial you will learn how to configure JAAS authentication in Tomcat using the HTTP Basic authentication scheme. Sat, 23 Feb 2013 16:32:38 GMT https://www.byteslounge.com/tutorials/spring-mvc-requestmapping-example In this tutorial you will learn how to use @RequestMapping annotation to match URL patterns in different scenarios. Sat, 16 Feb 2013 09:01:34 GMT https://www.byteslounge.com/tutorials/first-spring-mvc-application-tutorial In this tutorial you will learn how to create a hello world Spring MVC application by example. Sun, 10 Feb 2013 15:05:30 GMT https://www.byteslounge.com/tutorials/java-enum-implementing-an-interface In this tutorial you will learn how to implement an Interface with an Enum in Java. Thu, 07 Feb 2013 16:06:16 GMT https://www.byteslounge.com/tutorials/java-custom-serialization-example In this tutorial you will learn how to override the default Java serialization mechanism and also how to provide a custom serialization implementation. Sun, 03 Feb 2013 16:13:15 GMT https://www.byteslounge.com/tutorials/spring-transaction-isolation-tutorial In this tutorial you will learn about the transaction isolation level provided by the Spring framework. Wed, 30 Jan 2013 20:36:59 GMT https://www.byteslounge.com/tutorials/spring-transaction-propagation-tutorial In this tutorial you will learn about the transaction propagation behaviors provided by the Spring framework. Sat, 26 Jan 2013 13:52:14 GMT https://www.byteslounge.com/tutorials/java-transient-modifier-example In this tutorial you will learn how to use the transient keyword as a property modifier in Java. Tue, 22 Jan 2013 15:06:03 GMT https://www.byteslounge.com/tutorials/java-externalizable-example In this tutorial you will learn how to implement a custom serialization mechanism by implementing the Externalizable interface. Thu, 17 Jan 2013 15:48:20 GMT https://www.byteslounge.com/tutorials/java-serializable-example In this tutorial you will learn how to serialize a Java object to the file system and read it afterwards. Mon, 14 Jan 2013 19:27:00 GMT https://www.byteslounge.com/tutorials/spring-postconstruct-and-predestroy-example In this tutorial you will learn how to use @PostConstruct and @PreDestroy annotations with Spring. Thu, 10 Jan 2013 18:11:18 GMT https://www.byteslounge.com/tutorials/java--iterate-over-a-list-in-the-reverse-order-example In this tutorial you will learn how to iterate over a Java list in the reverse order. Sun, 06 Jan 2013 10:54:26 GMT https://www.byteslounge.com/tutorials/spring-with-hibernate-persistence-and-transactions-example In this tutorial you will learn how to implement Hibernate persistence using the Spring framework in a transactional fashion. Wed, 02 Jan 2013 17:28:16 GMT https://www.byteslounge.com/tutorials/spring-jdbc-transactions-example In this tutorial you will learn how to implement JDBC transactions using the Spring framework. Sat, 29 Dec 2012 15:19:27 GMT https://www.byteslounge.com/tutorials/spring-dependency-injection-with-xml-example In this tutorial you will learn how to configure Spring dependency injection using the Spring XML configuration file. Wed, 26 Dec 2012 11:17:34 GMT https://www.byteslounge.com/tutorials/how-to-connect-to-an-android-server-socket-in-the-emulator In this tutorial you will learn how to connect to a server socket that is running in the Android emulator. Sat, 22 Dec 2012 08:10:49 GMT https://www.byteslounge.com/tutorials/spring-dependency-injection-example In this tutorial you will learn how to use Spring dependency injection (or inversion of control) feature. Wed, 19 Dec 2012 16:24:57 GMT https://www.byteslounge.com/tutorials/spring-bean-scopes In this tutorial you will learn about Spring bean scopes and how to use them. Sat, 15 Dec 2012 13:32:23 GMT https://www.byteslounge.com/tutorials/first-spring-application-example This tutorial will demonstrate how to create a hello world Spring application. Sat, 15 Dec 2012 11:25:10 GMT https://www.byteslounge.com/tutorials/how-to-create-a-multiple-module-project-using-maven In this tutorial you will learn how to create a multiple module project using Maven, more precisely a web application project (WAR) referencing another project as a library (JAR). Tue, 11 Dec 2012 16:03:30 GMT https://www.byteslounge.com/tutorials/how-to-add-dependencies-to-a-maven-project In this tutorial you will learn how to include references to external libraries (dependencies) into a Maven project. Sat, 08 Dec 2012 12:30:36 GMT https://www.byteslounge.com/tutorials/how-to-create-a-simple-maven-project In this tutorial you will learn how to create a simple Maven project. Your project will then be able to fetch libraries from Maven repositories. Sat, 08 Dec 2012 10:01:05 GMT