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Jim Constantine Senior Enterprise Architect Sun
Microsystems jim.constantine_at_sun.com
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Java Quo Vadis ?

• Java Forum Stuttgart
• 1 July 1999

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JavaOne 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

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JavaOne Impressions

• Last year what we will do
• This year what we did
• Lots of mature products with mature vendors
• More reality and less hype

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JavaOne 1999

• Cool Stuff
• 10,000 PalmVs sold for 199 each to attendees.
  Pre-loaded with the K virtual machine (J2ME).
• Real-time Java demo by IBM
• Jini controlled Lego Mindstorm robots

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JavaOne 1999

• Key Announcements
• New Java Editions J2EE, J2SE, J2ME.
• Roadmap for the next few releases of Java 2.
• Java Community Process.
• Misc.

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The Old View
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The New View
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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

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Java 2 Enterprise Edition (J2EE)

• Current JDK stuff
• CORBA, IIOP, Messaging, Transactions, RMI, JDBC,
  JNI,
• EJB
• Servlets
• Java Server Pages
• New Packaging and Deployment Ideas

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Java 2 Enterprise Edition

• Consists of
• J2EE Specification
• J2EE Application Programming Model (best
  practices)
• J2EE Reference Implementation
• J2EE Compatibility Test Suite

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J2EE 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

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J2EE Deployathon Demo

• Showed the same used car eCommerce application
  EJB code running without ANY changes in
• Oracle App. Server
• IBM WebSphere
• Netscape NAS
• BEA WebLogic
• Gemstone J
• and others

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Java 2 Standard Edition (J2SE)

• What we all think of as the JDK
• Targeted at desktop PCs and workstations
• Next major release will include HotSpot
• Netscape 5.0 will have J2SE built in via OJI and
  the Plug-in

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Java 2 Micro Edition (J2ME)

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

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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 (5M)
• fixed cookie support

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Java 2 Roadmap

• Kestrel Release (1.2.3)
• due out Q1/2000
• http 1.1
• RMI over IIOP
• 25 faster startup
• 20 smaller footprint
• GUI performance focus
• HotSpot for client
• Plug-in
• sticky applets and standard extensions

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Java 2 Roadmap

• Post Kestrel
• Java 3 ??? Q1/2001
• new I/O API
• Plug-in
• support for multiple JVMs (not committed)

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Java Community Process

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

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Java Community Process

• Java Specification Requests (JSR)
• Orthogonal Persistence
• J2EE Connector Architecture
• Unified Printing API
• Parameterized Types
• See
• http//java.sun.com/aboutjava/communityprocess

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HotSpot

• Source will be available via SCSL
• Built in to J2EE
• Future releases promise an additional 40
  performance improvement.

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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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The Service Driven Network
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