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I'm trying to load netcdf data in an app with no local 'filesystem', such as a jnlp (web start) environment. Looks like the best bet, given the Java Netcdf API, is to locate the data as as resource (Class.getResourceAsStream). I can thus get the data into a byte[]. But passing that byte[] to NetcdfFile.openInMemory fails with a NPE. Looking at the latest (2.2.09) sources, it seems that the InMemoryRandomAccessFile is broken. The 'buffer' attribute is attached to the incoming data buf only after a call to 'init(1)' occurs. The superclass RandomAccessFile is thus is a bad state, causing an eventual NPE. Any help gratefully apprteciated, Stuart