FULL PRODUCT VERSION :
java version " 1.7.0_09 "
Java(TM) SE Runtime Environment (build 1.7.0_09-b05)
Java HotSpot(TM) 64-Bit Server VM (build 23.5-b02, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Darwin Mac-mini-de-Oscar.local 11.4.2 Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64 x86_64

A DESCRIPTION OF THE PROBLEM :
When you open a save FileDialog and you want save a pdf file, FileDialog removes the '.pdf' extension. So, the user accepts a file without extension.

If your application is sandboxed, and if you add the '.pdf' extension later, it produces a sandbox security violation. So the application cat't be sandboxed.

REGRESSION. Last worked in version 6u31

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Execute the test case.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
test.pdf

ERROR MESSAGES/STACK TRACES THAT OCCUR :
If your application is sandboxed and you add the " .pdf " extension before save the file, you get:

Cont4-FactL(931) deny file-read-data /Users/oscar/Documents/test.pdf
Process: Cont4-FactL [931]
Path: /Applications/Cont4-FactL.app/Contents/MacOS/Cont4-FactL
Load Address: 0x104027000
Identifier: Cont4-FactL
Version: ??? (???)
Code Type: X86-64 (Native)
Parent Process: launchd [218]

Date/Time: 2012-11-12 11:56:58.928 +0100
OS Version: Mac OS X 10.7.5 (11G63)
Report Version: 7

Backtrace:
0 libsystem_kernel.dylib 0x00007fff864afad2 __open + 10
1 libjvm.dylib 0x0000000104f1b2c0 os::open(char const*, int, int) + 74
2 libjvm.dylib 0x0000000104e294df JVM_Open + 51
3 libjava.dylib 0x00000001056072f2 fileOpen + 118
4 0x000000010564af90
5 0x000000010563f158
6 0x000000010563f158
7 0x000000010563f158
8 0x000000010563f158
9 0x000000010563f158
10 0x00000001056394f7
11 libjvm.dylib 0x0000000104df5863 JavaCalls::call_helper(JavaValue*, methodHandle*, JavaCallArguments*, Thread*) + 557
12 libjvm.dylib 0x0000000104df5d40 JavaCalls::call_virtual(JavaValue*, KlassHandle, Symbol*, Symbol*, JavaCallArguments*, Thread*) + 256
13 libjvm.dylib 0x0000000104df5e7a JavaCalls::call_virtual(JavaValue*, Handle, KlassHandle, Symbol*, Symbol*, Thread*) + 74
14 libjvm.dylib 0x0000000104e28ce4 _ZL12thread_entryP10JavaThreadP6Thread + 169
15 libjvm.dylib 0x0000000104fe0754 JavaThread::thread_main_inner() + 134
16 libjvm.dylib 0x0000000104fe1bf3 JavaThread::run() + 369
17 libjvm.dylib 0x0000000104f1e7ad _ZL10java_startP6Thread + 173
18 libsystem_c.dylib 0x00007fff862148bf _pthread_start + 335
19 libsystem_c.dylib 0x00007fff86217b75 thread_start + 13

Binary Images:
       0x104b6f000 - 0x1051e3fef +libjvm.dylib (??? - ???) <AFAD88BD-D9A3-3176-ACE3-E32038500A27> /Applications/Cont4-FactL.app/Contents/PlugIns/jre1.7.0.jre/Contents/Home/lib/server/libjvm.dylib
       0x105600000 - 0x105621fe7 +libjava.dylib (??? - ???) <2EAF3A1B-7AA9-3B66-8B2E-8179E3045036> /Applications/Cont4-FactL.app/Contents/PlugIns/jre1.7.0.jre/Contents/Home/lib/libjava.dylib
    0x7fff861c6000 - 0x7fff862a3fef libsystem_c.dylib (763.13.0 - compatibility 1.0.0) <41B43515-2806-3FBC-ACF1-A16F35B7E290> /usr/lib/system/libsystem_c.dylib
    0x7fff86499000 - 0x7fff864b9fff libsystem_kernel.dylib (1699.32.7 - compatibility 1.0.0) <66C9F9BD-C7B3-30D4-B1A0-03C8A6392351> /usr/lib/system/libsystem_kernel.dylib


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class Test {
    public static void main(String args[]) {
        FileDialog dlg = new FileDialog(new Frame(), " Save " );
        dlg.setMode(FileDialog.SAVE);
        dlg.setFile( " test.pdf " );
        dlg.setVisible(true);
        System.out.println(dlg.getFile());
    }
}
---------- END SOURCE ----------