Zlib Deflate help

Question

I am trying to implement compression/uncompression functionality into a java application I am building but have ran into a brick wall. The compressed file is read by a third-party application to which I am unable to change (i.e. I do not have access to the source code). The reason for uncompressing is to allow updates to certain areas of the file prior to the 3rd party application picking it up for processing.
I have partial source code for a C++ application which in fact correctly uncompresses and compresses the file, but have been unable to mimic the effects in java.
The compression method used is "zlib" which can be included in my java application via "java.util.zip". I was initially informed that the C++ deflate method used should be identical to the Deflater class methods in java (or rather the DeflaterOutputStream as I am working with files).
After completing the following method I have been unable to create an identical file to the compression method via the C++ application:
public void compressFile()
try
FileInputStream fileIn = new FileInputStream(inputFile);
FileOutputStream fileOut = new FileOutputStream(outputFile);
DeflaterOutputStream compressor = new DeflaterOutputStream(
fileOut, genieDeflate, OUTPUT_BUFFER_SIZE);
for (int c = fileIn.read(); c != -1; c = fileIn.read())
compressor.write(c);
compressor.close();
fileIn.close();
catch (IOException ex)
System.err.println(ex);
genieDeflate is a Deflater object using default values.
OUTPUT_BUFFER_SIZE = 0x2000, as viewed in C++ source code.
Any pointers? Possibly errors in the above code or other considerations I have neglected?
Many thanks

Answer 1

bitten to death
2.6.25.rcX fixed this
patch available somewhere
or simply edit kernel Makefile
1) find this line
KBUILD_CFLAGS
add
-fno-tree-scev-cprop
so complete line looks as follows:
KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
                   -fno-strict-aliasing -fno-common \
                   -Werror-implicit-function-declaration \
                   -fno-tree-scev-cprop
save
kompile kernel