Jim Constantine Senior Enterprise Architect Sun Microsystems jim

Jim Constantine Senior Enterprise Architect Sun Microsystems jim. constantine@sun. com

Java Quo Vadis ? Java Forum Stuttgart 1 July 1999

Java. One 1999 The Numbers: • 21, 000 attendees • 669 speakers • 1. 7 million Java developers • Java developers will surpass C++ developers by 2000 • 40, 000 Java licensees through the “Sun Community Source License”

Java. One Impressions • Last year “what we will do” • This year “what we did” • Lots of mature products with mature vendors • More reality and less hype

Java. One 1999 Cool Stuff • 10, 000 Palm. Vs sold for $199 each to attendees. Pre-loaded with the K virtual machine (J 2 ME). • Real-time Java demo by IBM • Jini controlled Lego Mindstorm robots

Java. One 1999 Key Announcements • New “Java Editions” J 2 EE, J 2 SE, J 2 ME. • Roadmap for the next few releases of Java 2. • Java Community Process. • Misc.

The Old View

The New View

Application Profiles • A way to add support for domain specific requirements. • Specifies exactly what support is provided to applications in terms of features, APIs, classes and (optionally) frameworks. • Test Suite

Java 2 Enterprise Edition (J 2 EE) • Current JDK stuff : – CORBA, IIOP, Messaging, Transactions, RMI, JDBC, JNI, … • • + EJB + Servlets + Java Server Pages New Packaging and Deployment Ideas

Java 2 Enterprise Edition Consists of: • J 2 EE Specification • J 2 EE Application Programming Model (best practices) • J 2 EE Reference Implementation • J 2 EE Compatibility Test Suite

J 2 EE Concepts Components: EJB Containers: web, application – Web for JSP, Servlets – Application for EJBs – XML deployment descriptor idea extended to support JSP, Servlets, web content Connectors: for talking to legacy systems such as CICS and SAP

J 2 EE Deployathon Demo • Showed the same used car e. Commerce application EJB code running without *ANY* changes in: – Oracle App. Server – IBM Web. Sphere – Netscape NAS – BEA Web. Logic – Gemstone J – and others

Java 2 Standard Edition (J 2 SE) • What we all think of as the JDK • Targeted at desktop PCs and workstations • Next major release will include Hot. Spot • Netscape 5. 0 will have J 2 SE built in via OJI and the Plug-in

Java 2 Micro Edition (J 2 ME) • Targets high volume consumer devices • Highly optimized runtime with newly written JVM called K-Java – 40 kb in size, with libs 128 kb – suited for 16/32 b RISC/CISC 16+ Mhz – written with Motorola, 3 Com, Bull, Fujitsu • Palm V is reference platform • Psion has announced support

Java 2 Roadmap “Cricket” Release (1. 2. 2) – due out July 1999 – bug fixes – Plug-in: - RSA signing HTTPS support silent install 50% smaller download (5 M) fixed cookie support

Java 2 Roadmap “Kestrel” Release (1. 2. 3) – due out Q 1/2000 – http 1. 1 – RMI over IIOP – 25% faster startup – 20% smaller footprint – GUI performance focus – Hot. Spot for client – Plug-in: - “sticky applets” and standard extensions

Java 2 Roadmap Post “Kestrel” – Java 3 ? ? ? Q 1/2001 – new I/O API – Plug-in - support for multiple JVMs (not committed)

Java Community Process • The way by which anyone can contribute to Java • 20 proposals underway • Audited by the independent auditing firm of Price-Waterhouse

Java Community Process Java Specification Requests (JSR): • Orthogonal Persistence • J 2 EE Connector Architecture • Unified Printing API • Parameterized Types • See: http: //java. sun. com/aboutjava/communityproce ss

Hot. Spot • Source will be available via SCSL • Built in to J 2 EE • Future releases promise an additional 40% performance improvement.

Bill Joy Keynote • Quoted Arthur C. Clarke: “Any sufficiently advanced technology is indistinguishable from magic. ” • Your phone should have common sense reasoning about context: e. g. It should not ring when in a meeting.

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