The 'VNU Newswire' has received the full text of the letter sent by an alliance including Digital, Compaq, Microsoft and Intel to Sun this week, protesting at its perceived attempts to dominate the Java standards process.
Sun still refuses to comment on the text of the letter, as does Compaq, which has never licensed Java.
The so-called 'open letter' attacks Jim Mitchell, vice president of Sun Microsystems, and others involved in the efforts to make Java an ISO standard, on a number of counts.
Although it says: "We welcome efforts to standardize Java and look forward to a new submission", it attacks Sun over ownership, maintenance and evolution of the spec, use of the Java name and compatibility testing, and raises doubts over whether the spec is really in the public domain.
At press time, Sun had still failed to respond to the open letter, signed by four senior vice presidents - Robert Stearns of Compaq, Bill Strecker of Digital, William Stope at Intel and Bob Muglia at Microsoft.
However, many observers see the letter as a sign that Java's success has rattled the major PC players in the industry.
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