Re: How to handle a NullPointerException

[Dimiter Stamenov <pamir at abv dot bg>]

 >__cyg_profile_func_enter() is just a C function that takes two void* args
 >
 >void __cyg_profile_func_enter( void *this, void *callsite )
 >
 >Define it and link with your program.
 >
 >Do *not* compile this C code with `-finstrument-functions'.
 >
 >Andrew.
 >
 >
 >void __cyg_profile_func_enter( void *this, void *callsite )
 >{
 >   /* Function Entry Address */
 >   fprintf(fp, "E%p\n", (int *)this);
 >}
 >
 >
 >void __cyg_profile_func_exit( void *this, void *callsite )
 >{
 >   /* Function Exit Address */
 >   fprintf(fp, "X%p\n", (int *)this);
 >}

OK I have compiled successfully with -finstrument-functions and a new exception is thrown (not thrown when compiled without it)... I am wondering why everything is OK when running with JVM - if there is not an exception with it, then may be the problem is not in the java code?

The result from gdb is:
(gdb) run
Starting program: universal.exe
Loaded symbols for D:\WINDOWS\system32\ntdll.dll
Loaded symbols for D:\WINDOWS\system32\kernel32.dll
Loaded symbols for D:\WINDOWS\system32\advapi32.dll
Loaded symbols for D:\WINDOWS\system32\rpcrt4.dll
Loaded symbols for D:\WINDOWS\system32\msvcrt.dll
Loaded symbols for D:\WINDOWS\system32\user32.dll
Loaded symbols for D:\WINDOWS\system32\gdi32.dll
Loaded symbols for D:\WINDOWS\system32\ws2_32.dll
Loaded symbols for D:\WINDOWS\system32\ws2help.dll
java.io.IOException: Unable to read entire header; 1 byte read; expected 512 bytes
   at org.apache.poi.poifs.storage.HeaderBlockReader.<init>(universal.exe)
   at org.apache.poi.poifs.filesystem.POIFSFileSystem.<init>(universal.exe)
   at org.apache.poi.hwpf.HWPFDocument.verifyAndBuildPOIFS(universal.exe)
   at org.apache.poi.hwpf.extractor.WordExtractor.<init>(universal.exe)
   at org.apache.poi.Universal.getWordFileText(universal.exe)
   at org.apache.poi.Universal.main(universal.exe)

Dimiter