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Interfacing With C From Java With JNI: Part 2/2


In the final article of the series, Neville talks about advanced JNI and shows us a great example that takes us 1 step closer to mastering the basics of JNI.

Author Info:
By: Neville Mehta
Rating: 4 stars4 stars4 stars4 stars4 stars / 39
July 14, 2002
TABLE OF CONTENTS:
  1. · Interfacing With C From Java With JNI: Part 2/2
  2. · Advanced JNI
  3. · Advanced JNI (contd.)
  4. · Conclusion

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Interfacing With C From Java With JNI: Part 2/2 - Conclusion
(Page 4 of 4 )

The Java environment in which Java class files are executed is a subsystem with its own policies. C/C++ on the other hand being a legacy language is likely to have its own set of policies.

What I am trying to say is when you use JNI on a mammoth scale, you are going to have problems. You lose your write once run anywhere advantage of java as your C code may produce unexpected problems on another machine. It may also be slow because your code is entering a whole new different environment, security policies may throw an error anytime and there lots more areas where errors can occur.

I said this in part 1 and I say it again: use JNI only when you really need to.
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