Name: stC104175 Date: 08/23/2000


java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)



Runtime.exec(String) and Runtime.exec(String, String[]) do not consider the
significance of single and double quote characters when parsing the command-line
string. Right now they parse "xterm -T 'My title' -e ls" as follows:

xterm
-T
'My
title'
-e
ls

such that each line denotes another element in the array ARGV[]. Instead, the
above String should be parsed as:

xterm
-T
My title
-e
ls

Another thing worth noting is that this parsing behavior should be different
under Windows and Unix-based machines as Unix-based machines accept single and
double quotes equaly and Windows-based machines only accept double-quotes.
If you would like me to provide you with the source-code to correct this bug,
please contact me.
(Review ID: 107860)
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Name: krC82822 Date: 03/14/2001


>java -version
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)

exec cannot handle commands with "-" parameters.
Below code executes nbtstat with -n parameter.
Output dataset does not get updated with command output.
Command works under C++ and NT Command Prompt.

button12.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent ev) {
        Runtime r = Runtime.getRuntime();
try {
r.exec("c:\\windows\\system32\\nbtstat -n > c:\\temp\\tmp.rpt");
}
catch (java.io.IOException e)
{ System.out.println("Got exception on button Nbtstat Names " +
e);
e.printStackTrace();
}
      }
    });



Commands with "/" parameters work fine:
Below code executes mem with /d parameter.
 
button11.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent ev) {
        Runtime r = Runtime.getRuntime();
try {
r.exec("c:\\windows\\system32\\mem.exe /d > c:\\temp\\tmp.rpt");
callWord();
}
catch (java.io.IOException e)
{ System.out.println("Got exception on button Memory Debug " +
e);
e.printStackTrace();
}
      }
    });


Workaround is to place command in a script file:

 button12.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent ev) {
        Runtime r = Runtime.getRuntime();
try {
r.exec("c:\\joe\\java\\bin\\nbtstat_n.bat");
// r.exec("c:\\windows\\system32\\nbtstat -n > c:\\temp\\tmp.rpt");
callWord();
}
catch (java.io.IOException e)
{ System.out.println("Got exception on button Nbtstat Names " +
e);
e.printStackTrace();
}
      }
    });



where nbtstat_n.bat contains:

c:\\windows\\system32\\nbtstat -n > c:\\temp\\tmp.rpt
(Review ID: 118798)
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