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Archived Developer Articles
29 Apr 2010
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Java Applets and the Java SE 6 Update 19 or 20 [23077]
Know How to Mix Signed and Unsigned Code

If you upgraded to Java SE 6 Update 19 and/or 20 and are having issues with JavaFX applets, then you might be having trouble with a mix of signed and unsigned code. Not only is this bothersome but it also could potentially be unsafe unless the mixed code was intended by the application vendor. A Java SE document explains the issue and how to ensure application and applet security.
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13 Apr 2010
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HTML5 Server-Push Technologies [23016]
HTTP, AJAX, Comet -- Milestones Along the Way

A recent article in java.net details information on two important components of the upcoming HTML5 specification, Server-Sent Events and WebSockets. Author Gregor Roth begins his piece, which is Part 1 of a series, with a review of the technologies that have served web users over the years, beginning with Hypertext Transfer Protocol (HTTP), and then moving to both AJAX (useful for pulling data requests from the server) and Comet or "reverse AJAX" (which defines the architecture for pushing data from the server to the client).
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07 Apr 2010
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Java Champion Offers Developers Expert Perspective on Java EE [23010]
'Just Write the Code that Makes Sense'

In yet another installment of her series on Java Champions, Janice J. Heiss interviews Yakov Fain, long-term toiler in the enterprise technology vineyards and Managing Director at Farata Systems, which sells consulting services specializing in the development of enterprise rich Internet applications that utilize Adobe Flex on the client and Java EE on the server side. At Farata, Fain's duties include offering sales support without sales, which he does by producing technical materials, writing blogs, speaking at technical conferences, conducting trainings, mentoring client teams, managing offshore developers, and participating in development and promotion of open-source products.
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30 Mar 2010
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A How-to for Adding Logging to MIDlets [22987]
A Simple Method for Adding Capabilities

The technical article "Powerful Logging in Java ME" explains how to add logging to MIDlets using the Microlog open-source logging library. Author Johan Karlsson explains, step-by-step, how to program the Microlog open-source logging library, derived from the Log4j or logging library and created with the limitations of Java ME in mind. Karlsson notes that the library is released with Apache Software License V2, which means it can be used in open-source projects as well as in commercial applications.
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19 Mar 2010
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Sun POJO Service Engine User's Guide [22871]
Building Business Integration Applications to JBI Standards with Plain Old Java Objects

"Using the Sun POJO Service Engine" is a guide to the tools available in the Plain Old Java Objects (POJO) Service Engine that enable users to build business integration applications based on JBI standards and using Plain Old Java Objects.
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15 Mar 2010
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Design Priniciples for Thread-based Systems [22914]
Thread Safety Policy Helps Simplify Design of Applications

A java.net article discusses design principles to follow when the objective is to build an efficient, thread-safe application. In the article "Rethinking Multi-Threaded Design Principles" Dibyendu Roy asserts that careful design and adherence to a well thought out underlying policy is essential for productive thread-based systems.
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