Runtime.exec with spaces not working EVEN using String[]!!

Question

Hi everyone,
I need to start the rmi registry from some code,and i need to pass it the classpath of two jars when initialising it. My problem is that the paths I set aren't taken when they contain a space.
Here's the code:
<code>
String rmiRegistryCommandLine[] = new String[] {
+ System.getProperty("java.home")
+ "\\bin\\rmiregistry.exe\"",
"-J-Djava.class.path=\""+System.getProperty("user.dir")+"\\MyJar.jar\"",
"1099"};
                                        Runtime.getRuntime().exec(rmiRegistryCommandLine);
</code>
I know that Runtime.exec(String) tokenizes the input, which is why I'm not using it, but Runtime.exec(String[]) isn't supposed to tokenize the input. System.getProperty("user.dir") can contain a space, so I put quotes around that, but I need the -J-Djava.class.path in the same string. I tried breaking it up into two more separate strings but it didn't even run for normal non-space paths then. I am sure that if the whole -J-Dblah....upto MyJar.jar was in quotes then it would work, but I need the classpath in quotes separately as it could contain a space.
Can anyone help me get this working?

Answer 1

Ya, that's fine but the command line I want to pass is:
d:\j2sdk1.4.0\bin\rmiregistry.exe -J-Djava.class.path=d:\my dir with spaces\MyJar.jar;d:\my more dir with spaces\MyJar2.jar 1099
If I say
arg[0]="d:\\j2sdk1.4.0\\bin\rmiregistry.exe";, that's finebut arg[1] is the problem
if I say
arg[1]="-J-Djava.class.path=d:\\my dir with spaces\MyJar.jar; d:\\my more dir with spaces\\MyJar2.jar";, then it definitely won't work on 9X machines and probably not on NT.
if I break up arg[1] into:
arg[1]="-J-Djava.class.path=";
arg[2]="d:\\my dir with spaces\\MyJar.jar";
arg[3]=";";
arg[4]="d:\\my more dir with spaces\\MyJar2.jar";I'll need to put quotes around the two individual two class paths or else it won't work.
I find though that if I put the classpath as follows
d:\"my dir with spaces"\MyJar.jar then it seems to work.
I think a regular expression function to search for any directory with spacees and then put quotes around it and reinsert it into the path would be the solution.