I have an Apple laptop running 10.6.7 and I somehow managed to get into a situation where Java header files are actually (empty) directories. The laptop came with 10.6.7 pre-installed. I ran "Software Update", installed Xcode 3.2.6, and installed MacPorts. When trying to install port "db46" I get compilation errors, because jni.h is broken.
How do I fix this?
bash-3.2# pwd
/System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers
bash-3.2# ls -la
total 64
drwxr-xr-x 17 root wheel 578 May 5 11:28 .
drwxr-xr-x 10 root wheel 340 Mar 29 19:22 ..
drwxr-xr-x 2 root wheel 68 May 5 11:28 AWTCocoaComponent.h
drwxr-xr-x 2 root wheel 68 May 5 11:28 JDWP.h
drwxr-xr-x 2 root wheel 68 May 5 11:28 JDWPCommands.h
-rw-r--r-- 1 root wheel 179 Oct 24 2010 JavaVM.h
-rw-r--r-- 1 root wheel 2390 Oct 24 2010 NSJavaConfiguration.h
-rw-r--r-- 1 root wheel 2060 Oct 24 2010 NSJavaVirtualMachine.h
-rw-r--r-- 1 root wheel 19394 Oct 24 2010 classfile_constants.h
drwxr-xr-x 2 root wheel 68 May 5 11:28 jawt.h
drwxr-xr-x 2 root wheel 68 May 5 11:28 jawt_md.h
drwxr-xr-x 2 root wheel 68 May 5 11:28 jdwpTransport.h
drwxr-xr-x 2 root wheel 68 May 5 11:28 jni.h
drwxr-xr-x 2 root wheel 68 May 5 11:28 jni_md.h
drwxr-xr-x 2 root wheel 68 May 5 11:28 jvmdi.h
drwxr-xr-x 2 root wheel 68 May 5 11:28 jvmpi.h
drwxr-xr-x 2 root wheel 68 May 5 11:28 jvmti.h
Best Answer
Try re-installing Java using this update. It is the Java Update for Snow Leopard. Hopefully that will fix the problems your seeing here.
Let us know if that works, if not we can do some more troubleshooting and help you out.