Having spaces in Runtime.getRuntime().exec with 2 executables
Solution 1:
Each argument you pass to the command should be a separate String element.
So you command array should look more like...
String[] a = new String[] {
"C:\path\that has\spaces\plink",
"-arg1",
"foo",
"-arg2",
"bar",
"path/on/remote/machine/iperf -arg3 hello -arg4 world"};
Each element will now appear as a individual element in the programs args
variable
I would also, greatly, encourage you to use ProcessBuilder
instead, as it is easier to configure and doesn't require you to wrap some commands in "\"...\""