| By Marco Casario | Article Rating: |
|
| April 19, 2009 06:28 PM EDT | Reads: |
1,626 |
This release includes an early look at our Java runtime, integration with Google Web Toolkit, and a Google Plugin for Eclipse, giving you an end-to-end Java solution for AJAX web applications. Our support for the Java language is still under development and we're eager to get your help and input.
1. Cannot write to the filesystem. Must use Data Store for persistence.
2. Cannot open a socket or access another host directly.
3. Cannot spawn a sub-process or thread.
4. Cannot make other kinds of system calls.
5. Cannot create a new java.lang.ThreadGroup nor a new java.lang.Thread. However, operations against the current thread, such as Thread.currentThread().dumpStack() is allowed.
6. The features of the java.lang.System class that do not apply to App Engine are disabled.
7. The System methods such as: exit(), gc(), runFinalization() and runFinalizersOnExit() do nothing.
8. Cannot directly invoke JNI code
9. Application is allowed full, unrestricted, reflective access to its own and JRE classes. However, An application cannot reflect against any other classes not belonging to itself, and it can not use the setAccessible() method to circumvent these restrictions
Published April 19, 2009 Reads 1,626
Copyright © 2009 SYS-CON Media, Inc. — All Rights Reserved.
Syndicated stories and blog feeds, all rights reserved by the author.
More Stories By Marco Casario
Marco Casario is CEO of Comtaste, a company devoted to develop Rich Internet Applications on the Web and for mobile devices.
He collaborates intensively with Adobe Italy as a speaker at conferences and as a consultant for Flash, Flex, and Flash Lite.
Learn more about Marco Casario at his blog http://casario.blogs.com. In 2005, Marco has founded Comtaste, a company dedicated to exploring new frontiers in Rich Internet Applications and the convergence between the web and the world of mobile devices — MobyMobile and YouThru are representative of their recent work. He is founder of the biggest worldwide Flash Lite User Group and of www.augitaly.com, a reference point for the Italian community of Adobe users, in which he carries out the role of Channel Manager for the section dedicated to Flex.
- Kindle 2 vs Nook
- Why IBM’s Server Chief Got Busted
- Is Cloud Computing Like Teenage Sex?
- Industry Experts Discuss the State of Cloud Computing
- Performance Tuning Essentials for Java
- Confessions of a Ulitzer Addict
- Tactical Cloud Computing Panel at 1st Annual GovIT Expo
- It's the Java vs. C++ Shootout Revisited!
- Cloud Computing Can Revitalize Your Career as Software Developer
- IBM Could "Reinvent" Java: Mills
- Oracle & Cloud Computing: Exclusive Q&A with SVP Richard Sarwal
- A Brief History of Cloud Computing
- Kindle 2 vs Nook
- Cloud CEOs, CTOs & SVPs to Speak at 4th International Cloud Computing Expo
- Why IBM’s Server Chief Got Busted
- Is Cloud Computing Like Teenage Sex?
- Industry Experts Discuss the State of Cloud Computing
- Performance Tuning Essentials for Java
- The Difference Between Web Hosting and Cloud Computing
- Cloud Computing Expo: Exclusive Q&A with Yahoo! SVP Cloud Computing
- Ajax in RichFaces 3.3, JSF 2 and RichFaces 4
- Confessions of a Ulitzer Addict
- My Thoughts on Ulitzer
- Tactical Cloud Computing Panel at 1st Annual GovIT Expo
- A Cup of AJAX? Nay, Just Regular Java Please
- Java Developer's Journal Exclusive: 2006 "JDJ Editors' Choice" Awards
- The i-Technology Right Stuff
- JavaServer Faces (JSF) vs Struts
- Rich Internet Applications with Adobe Flex 2 and Java
- Java vs C++ "Shootout" Revisited
- Bean-Managed Persistence Using a Proxy List
- Reporting Made Easy with JasperReports and Hibernate
- Creating a Pet Store Application with JavaServer Faces, Spring, and Hibernate
- What's New in Eclipse?
- Why Do 'Cool Kids' Choose Ruby or PHP to Build Websites Instead of Java?
- i-Technology Predictions for 2007: Where's It All Headed?







































