This document is a guide to help troubleshoot problems that might arise with applications that are developed using the Sun Microsystems Inc. release of Java Platform, Standard Edition 6 (JDK 6 release or Java SE 6 release). In particular, this guide addresses possible problems between the applications and the Java HotSpot virtual machine. The document provides a description of the tools, command line options, and other help in analyzing a problem. The document also provides guidance on how to approach some general issues such as a crash, hang, or memory resource issues. Finally, the document provides direction for data collection and bug report preparation.
EasyBeans is an open-source Enterprise Java Beans (EJB) container hosted by the OW2 consortium. The License used by EasyBeans is the LGPL.
EasyBeans main goal is to ease the development of Enterprise Java Beans. It uses some new architecture design like the bytecode injection (with ASM ObjectWeb tool), IoC, POJO and can be embedded in OSGi bundles or other frameworks (Spring, Eclipse plugins, etc.).
It aims to provide an EJB3 container as specified in the Java Platform Enterprise Edition (Java EE) in its fifth version. It means that Session beans (Stateless or Stateful), Message Driven Beans (MDB) are available on EasyBeans.
The new persistence layer used by EJB 3.0 is now called Java Persistence API (or JPA). It replaces the CMP (Container Managed Persistence) model used by EJB 2.x. The default persistence provider used in EasyBeans is Hibernate Entity Manager or Apache OpenJPA but other JPA providers have been tested like for example Oracle TopLink Essentials.
Grasshopper is a Visual Studio-based SDK and patented .NET to Java converter that enables you to run .NET Web and server applications to run on Linux® and other Java-enabled platforms.
10gen is a new platform-as-a-service technology designed to help developers quickly and easily build dynamic, scalable, mission critical web sites and applications.
The 10gen software stack is analogous to Google App Engine in that it provides a new stack of tools (database, grid management, application server) that are purpose-built to run in a cloud environment.
DB Schema Viewer is an Eclipse plugin that builds a graphical view of an existing database. Reverse Engineering is performed through JDBC. The most popular databases are currently supported:
* MySQL
* PostgreSQL
* Firebird
ClassMock is a framework that helps the creation of unit tests for components that use reflection or annotations. In this kind of classes, the behavior is dependent of the class structure. This way, each test case usually works with a different class created specifically for the test. With ClassMock is possible to define and generate classes in runtime, allowing a better test readability and logic sharing between tests.
The Pager Tag Library is the easy and flexible way to implement paging of large data sets in JavaServer Pages (JSP). It can emulate all currently known paging styles with minimal effort. It also includes re-usable index styles that emulate the search result navigators of popular web sites such as GoogleSM, AltaVista® and Yahoo!. The Pager Tag Library does most of the work for you by dynamically organizing your data set into pages and generating a browsable index with virtually any look desired.
For those of you who've got into it you'll know that test driven development is great. It gives you the confidence to change code safe in the knowledge that if something breaks you'll know about it. Except for those bits you don't know how to test. Until now XML has been one of them. Oh sure you can use "<stuff></stuff>".equals("<stuff></stuff>"); but is that really gonna work when some joker decides to output a <stuff/>? -- damned right it's not ;-)
a6fw is a Java framework for the rapid development of a rich GUI web client and/or rich GUI windows client, OLTP type applications using Model Driven Architecture (MDA) and declarative principles. It consists of modular pluggable application layers (UI, n
Your users want to customize formulas. They know Excel or OpenOffice.
// Compile price finding factory and strategy implementation from spreadsheet:
EngineBuilder builder = SpreadsheetCompiler.newEngineBuilder();
builder.loadSpreadsheet( new File( PATH, "CustomPriceFormula.xls" ) );
builder.setFactoryClass( PriceFinderFactory.class );
builder.bindAllByName();
Engine engine = builder.compile();
PriceFinderFactory factory = (PriceFinderFactory) engine.getComputationFactory();
// Use it to compute a line item price:
LineItem item = getCurrentLineItem();
PriceFinder priceFinder = factory.newInstance( item );
BigDecimal price = priceFinder.getPrice();
Compile parametrized spreadsheets directly to bytecode.
* No need to have Excel, OpenOffice, or a JDK installed.
* Native speed, thread safe execution.
* Bind directly to your computation strategy interfaces.
* Using double, or BigDecimal for financial applications.
* Available under the GPL and commercially (details).
Abbot helps you test your Java UI. It comprises Abbot, which lets you programmatically drive UI components, and Costello (built on Abbot) which allows you to easily launch, explore and control an application. The framework may be used with both scripts and compiled code.
Abeille Forms Designer is a GUI builder for Java applications. Developers and designers can create complex, professional forms in minutes. Designers can drag and drop components onto a WYSIWYG editor. Full support for undo/redo and copy/paste is provided. Components can be easily customized by adding images or modifying their properties. Advanced fill effects are supported such as textures and gradients.
Abeille has intuitive layout rules and is based on the JGoodies FormLayout system (https://forms.dev.java.net). The FormLayout is a popular, open source layout manager for Java and is used by thousands of developers worldwide. Abeille comes with all the required software.
Abeille stores forms in binary files which can be loaded by your application and added to any Swing container. While the designer is licensed under the LGPL, the forms runtime has a BSD license. This allows forms created by the designer to be used freely in commercial applications.
* WYSIWYG Editor
* 3rd Party Java Bean Support
* Swing Based
* Borders, Gradients, Textures, Images, and Shadow Effects
* Undo/Redo
* Intuitive Layout Rules (based on JGoodies Form Layout)
* Open source runtime (BSD License)
* Code Generation
* Supports Windows, Linux, and Mac OS X.
Runa WFE is an environment for JBoss jBPM workflow engine. It is a cross-platform end user solution for business process development and execution. Together Runa WFE and JBoss jBPM provide an easy to use business process management system.
Runa WFE is an open source project.
What is this project
Runa WFE provides:
* an end user GUI to define business processes without any coding: draw flowcharts, define roles and variables, lay out forms
* an end user GUI to load and execute processes
* an administrative interface to create and remove users/groups and grant rights
* a possibility of writing automatic "bots" that can participate in business processes
* a possibility to code new GUI elements, variable types, organizational structure functions etc. that extend existing Runa WFE components and will be available to end users through the GUI
Runa WFE makes it possible to integrate your diverse enterprise applications in a unified system, by using "bots" that run inside "bot stations".
When the only thing you've got is a XML Hammer, every solution looks like XML.
The XML Hammer application is a free and open-source tool that simplifies elementary XML actions like checking for well-formedness, validation, transformation and xpath searches using any JAXP implementation.
After all these years of XML, it is still relatively difficult to simply validate or transform XML files. You are currently either forced to use extensive, sometimes expensive, and most often difficult to use tools with a lot of extra functionality unnecessary for these simple tasks and very often not flexible enough to provide what you want, or you will have to be almost a programmer and create your own application or script to handle these elementary XML related tasks.
The XML Hammer tool addresses these issues by providing a free and open-source tool that has a (relatively) simple to use user-interface however still allowing the flexibility for the user to specify anything that he/she would have been able to specify when writing a script for this same task him/herself.
The functionality of the XML Hammer tool is based on the capabilities provided by the Java API for XML Processing (JAXP) and supports the JAXP API as fully as possible. To achieve this, the functionality has been divided into five specific project types:
Acceleo is the most powerful code generator tool of its generation. It has been designed to improve software development productivity. Acceleo brings to everyone the MDA approach applied to development industrialization
The ActiveBPEL™ engine is a robust runtime environment that is capable of executing process definitions created for the Business Process Execution Language (BPEL) standard.
Today’s leading web applications are increasingly built on Web 2.0 principles: rich user interface, lightweight integration of multiple data sources, rapid evolution of applications, and user control over both content and context. Web 2.0 promises to expand the functionality of core business applications, knit together multiple services, and deliver a feature-rich user interface to enhance the customer experience and employee productivity.
This project contains custom Hibernate and JRuby extensions to let Hibernate work directly with org.jruby.RubyObject objects. That means that the Hibernate session accepts and returns plain old Ruby objects (no intermediary Java domain classes are needed). Another goal is to provide a Rubyish interface to the Hibernate configuration and functionality.
The idea to start this project comes from Ola Bini's blog http://ola-bini.blogspot.com/2007/04/activehibernate-any-takers.html. For more details please see http://rubymatic.blogspot.com.
The Advicio Service Workbench assembles second-generation IT service catalogues, creating a basis for distributed development of component-based service architectures. The tool’s deliverables are detailed IT service specifications in Advicio’s Service Specification and Configuration Language (SSCL). As well as delivering added value to clients – who benefit from clear-cut definitions of the content and scope of services – the specifications are also valuable for service providers to document workflows or in contract agreements with outsourcing partners.
E-travel is comprehensive framework for delivering personalized travel services using agent infrastructure based on our works in agent-related fields: Multimodal Communication Between Users and Software Agents and Modelling User on the Basis of Interactions with a WWW Based System. The system utilizes many existing up-to-day technologies related to the term of Semantic Web: JADE agent platform together with Jena semantic framework for processing ontology demarcated data. For easy and type safe access to ontology Jastor (Java beans generator from Web Ontologies (OWL)) has been used. Raccoon server provides a way to transform ontological data into browser-readable forms.
Our solution addresses set of the following problems:
* Connecting synchronous HTTP protocol with asynchronous nature of software agents.
* Web browser and mobile interface providing natural access to the multi-agent system.
* Separation of data and view thanks to: Model-View-Controller architecture, ontologies and Raccoon server for transforming data into view.
* Content personalization basen on user modelling, including: stereotyping, user profile learning and exploitation.
Business processes optimization with service-enabled applications is on the CIO's high priority agenda (according to a recent study of Gartner's Executive Program - EXP). At the same time a German study for SMEs (small and medium sized enterprises) has confirmed this business need especially for Germany's distinct high share of SMEs.
AgilPro is a process integration framework based on a service oriented architecture (SOA). AgilPro integrates existing ERP (enterprise resource planning), material management and proprietary data processing systems using service adapters. Particularly SMEs are known to use isolated solutions which prevent integrated process flow. AgilPro Integration Framework will help to close this gap.
AgilPro integrates BPEL compliant process engines for process execution (e.g. JBoss jBPM).
The agimatec tools contain some utilities to enable generation of files, source code etc. from sql files and annotated java classes.
The agimatec-dbmigrate tool is a database migration/script execution framework that can execute sql scripts, groovy scripts and provides a lot of features to assist in database schema migration. (tested with Oracle and Postgres)
This is an early implementation of JSR 303 (Bean Validation), a specification of the Java API for JavaBean validation in Java EE and Java SE.
The technical objective is to provide a class level constraint declaration and validation facility for the Java application developer, as well as a constraint metadata repository and query API.
This implementation is based on the validation framework of agimatec GmbH, that is in production for more than a year and offers additional features, like XML-based extensible metadata, code generation (JSON for AJAX applications), JSR303 annotation support.
For more information refer to the Wiki at Overview
Dopus is a Docbook publishing framework. It was designed with portability and extensibility in mind. Dopus can run on any Windows or Unix platform that supports Java.
Dopus was developed during a project for T-Systems Germany. T-Systems generously agreed to open source the newly developed parts of Dopus (Ant script and Docbook customization layer) for which we are very gratefull.
We have agreed to host Dopus here on our website as a free product we want to give back to the Docbook community. The Dopus framework is distributed under the GNU General Public License. The various parts of the Dopus framework are distributed under their respective (free) licenses.
Dopus is still pretty young but is already used in various projects.
ICEfaces Community Edition is an Ajax application framework that enables J2EE application developers to easily create and deploy thin-client rich web applications in pure Java. ICEfaces Community Edition is a fully featured product that Java developers ca
Akka is the platform for the next generation event-driven, scalable and fault-tolerant architectures on the JVM
We believe that writing correct concurrent, fault-tolerant and scalable applications is too hard. Most of the time it's because we are using the wrong tools and the wrong level of abstraction.
Akka is here to change that.
Using the Actor Model together with Software Transactional Memory we raise the abstraction level and provides a better platform to build correct concurrent and scalable applications.
For fault-tolerance we adopt the "Let it crash" / "Embrace failure" model which have been used with great success in the telecom industry to build applications that self-heals, systems that never stop.
Actors also provides the abstraction for transparent distribution and the basis for truly scalable and fault-tolerant applications.
Akka is Open Source and available under the Apache 2 License.
Java provides a neat way to carry out long lasting jobs without have to worry about threads and hanging the application. It's called SwingWorker. It's not the latest thing on Earth (released with Java 1.6) and you may have already read about it. What I never came across was a practical example of the swing worker.
XPath Explorer (XPE) is a GUI application that lets you interactively experiment with XPath. Basically, you type in a URL (to an XML or HTML document) and an XPath expression, and it displays the elements or attributes from that document which match that
What is Asynchronous IO for Java?
Asynchronous IO for JavaTM (AIO4J) is a package that provides the capability to perform input and output (IO) on sockets and files asynchronously -- that is, where the Java application can request the operation but can continue doing useful work while the underlying system performs the operation. The application is informed of the operation's completion later.
Normally smartphone events are tightly coupled to your phone device itself. When your cell phone is ringing, your phone speaker plays a ringtone. When you get a new text message, your phone displays it on its screen. Wouldn't it be thrilling to make thoses phone events visible somewhere else, on your wearable, in your living room, on your robot, in your office or where ever you want it to occur? Or would you like to use your smartphone sensors, like the accelerometer, light sensor, compass or your touchscreen to control other devices? 'android meets arduino' is a toolkit, basically consisting of an Android application and an Arduino library which will help you to interface with your phone in a new dimension. You can build your own interfaces almost without any programming experience.
This is a collection of answers to frequently asked questions (FAQs) about Java Generics, a new language feature added to the Java programming language in version 5.0 of the Java Standard Edition (J2SE 5.0).
The Animal Sniffer Plugin is used to build signatures of APIs and to check your classes against previously generated signatures. This plugin is called animal sniffer because the principal signatures that are used are those of the Java Runtime, and since Sun traditionally names the different versions of its Java Runtimes after different animals, the plugin that detects what Java Runtime your code requires was called "Animal Sniffer".
Annogen is a framework which helps you work with JSR175 Annotations. In a nutshell, Annogen generates a proxy layer in front of your Annotations. This lets you:
Override JSR175 Annotation values
...with data from XML or arbitrary plugin code that you write.
Migrate JDK1.4 code to JSR175
...by translating javadoc tags into Annotations
Work with popular introspection APIs
...including Reflection, Javadoc-Doclet, QDox, and APT-Mirror.