Runtime.exec() fails with space in directory (Java) -

i trying execute process in same directory jar file getting location of file with

private static file jarlocation = new file(main.class.getprotectiondomain().getcodesource().getlocation().getpath()).getparentfile(); 

then calling

runtime.getruntime().exec("command", null, jarlocation); 

this works fine when path has space in "the directory name invalid". have attempted add debug code prints path of directory has replaced spaces "%20" (i assume because ascii hex of space 20). there way able use directory spaces in path?

that getpath() call, url.getpath(), not return filesystem path. returns path portion of url. in case of file: url, url-encoded local filesystem path. if original url in fact file: url, need use uri , url classes, or custom string processing, convert local filesystem path runtime.exec() can work with.

this might work directly in case.

file jarlocation = paths.get(main.class.getprotectiondomain().getcodesource().getlocation().touri()).tofile(); 

you can see discussion @ converting java file:// url file(...) path, platform independent, including unc paths.