Microsoft Java Virtual Machine

Source: Wikipedia, the free encyclopedia.
"Microsoft Virtual Machine" redirects here; not to be confused with
Microsoft Virtual PC
.
This article is about the discontinued proprietary Java Virtual Machine implementation. For the currently maintained OpenJDK build, see OpenJDK.

The Microsoft Java Virtual Machine (MSJVM) is a

Embrace, extend and extinguish
" strategy. In 2001, Microsoft settled the lawsuit with Sun and discontinued its Java implementation.

History

Performance

The Microsoft JVM won the

JavaWorld Volano test.[1]

Antitrust trial

Microsoft's proprietary extensions to Java were used as evidence in the

United States v. Microsoft Corp.
antitrust civil actions.

A Memorandum of the United States in Support of Motion for Preliminary Injunction in the case of United States of America vs. Microsoft claimed that Microsoft wanted to kill Java in the marketplace.

In short, Microsoft feared and sought to impede the development of network effects that cross-platform technology like Netscape Navigator and Java might enjoy and use to challenge Microsoft's monopoly. Another internal Microsoft document indicates that the plan was not simply to blunt Java/browser cross-platform momentum, but to destroy the cross-platform threat entirely, with the "Strategic Objective" described as to "Kill cross-platform Java by grow[ing] the polluted Java market."[3]

Sun vs. Microsoft

In October 1997, Sun Microsystems, the creator of Java, sued Microsoft for incompletely implementing the Java 1.1 standard.[2]

In January 2001, Sun and Microsoft settled the suit. Microsoft paid Sun $20 million and the two agreed to a plan for Microsoft to phase out products that included the older version of Microsoft Java that allegedly infringed on Sun's Java copyrights and trademarks.

The Microsoft Java Virtual Machine was discontinued in 2003 in response to the Sun Microsystems lawsuit. Microsoft continued to offer support until December 31, 2007.[4]

Windows XP

See also: Windows XP

The initial release of

Java Applets in Internet Explorer to download and install either the standard Sun Java virtual machine
, or to download a copy of the Microsoft Java virtual machine.

Service Pack 1 (SP1) for Windows XP was released on September 9, 2002. It contained post-RTM security fixes and hot-fixes, compatibility updates, optional .NET Framework support, and enabled technologies for new devices such as Tablet PCs. It also included the Microsoft Java virtual machine.[5] On February 3, 2003, Microsoft re-released Service Pack 1 (SP1) as Service Pack 1a (SP1a). This release removed Microsoft's Java virtual machine in compliance with the lawsuit with Sun Microsystems.[6]

See also

References

  1. ^
    JavaWorld
    . Retrieved 2020-07-16. Microsoft SDK 2.02 still stands alone as the only fast and scalable Java virtual machine. Our customers with the highest Web site traffic currently have no other viable choice for a JVM.
  2. ^
    JavaWorld
    . Retrieved 2020-07-16.
  3. ^ Memorandum of the United States in Support of Motion for Preliminary Injunction UNITED STATES OF AMERICA v. MICROSOFT CORPORATION, May 18, 1998
  4. ^ "Microsoft Java Virtual Machine". Archived from the original on 2014-08-31. Retrieved 2014-08-19.
  5. ^ "Windows XP Service Pack 1 preview". September 9, 2002. Archived from the original on 2010-07-02. Retrieved 2007-09-21.
  6. ^ "Differences Between Windows XP SP1 and Windows XP SP1a". February 3, 2003. Retrieved 2007-09-21.
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