Find the method getXFromFontFile(), look for this code:


for (i = 0; i < urlCount; i++) {

fontURLPath = (*env)->GetObjectArrayElement(env, fontURLPaths, i);

path = JavaStringToNSString(env, fontURLPath);
fontURL = [[[NSURL alloc] initWithString:path] autorelease];

fontDescArray = CTFontManagerCreateFontDescriptorsFromURL((CFURLRef)fontURL);

arySize = CFArrayGetCount(fontDescArray);
k = 0;
for (k = 0; k < arySize; k++) {
            NSString *attribute = (NSString*)CTFontDescriptorCopyAttribute(CFArrayGetValueAtIndex(fontDescArray, k), x);
[nsRet addObject:attribute];
            [attribute release];
}
}
CFRelease(fontDescArray);

According to the doc http://developer.apple.com/library/mac/#documentation/Carbon/Reference/CoreText_FontManager_Ref/Reference/reference.html
the caller of CTFontManagerCreateFontDescriptorsFromURL() is responsible for releasing the array.

Therefore the call to CFRelease(fontDescArray); should be inside of the for loop, not after (in which case only the last array is getting freed).
The format (indent) of the code is also a bit wrong, please fix.