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April 12, 2008 Saving RAM space when developing Java apps Posted by Vasili Prikhodko at 03:14 PM | Categories: Bugs and Workarounds

Though Carbide C++ is a C++ development environment, I am sure that many developers develop Java apps for s60 as well. We had a weird problem when reading a large file into a java byte array. Despite the fact that I had 1 GB allocated to Java VM, I was getting 'Out of memory' exception when trying to create 100MB byte array. The solution to this problem is to use a MappedMemoryBuffer class from nio package. It doesn't allocate the memory but instead maps the memory buffer to the file in the file systems. It is even more useful for the s60 development, since the available memory on the devices is really small. It is nice to use nio APIs for s60 Java development!


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