java.io.IOException: error=2, No such file or directory

Question

I am trying to run a java program from another java program using Runtime.getrunTime().exec

Code :

String java_home = System.getenv("JAVA_HOME");
 String[] command = {""+java_home+"/bin/java -cp -cp /sc/sug/p-lib/*  Tdesigner -cd /pr -in ing.rsp -out /scratch/sug/ng.pla -ad -stopO "};
                try {
                    proc = Runtime.getRuntime().exec(command);
                    proc.waitFor();
                    int exitCode = proc.exitValue();
                } catch (IOException e) {
                        e.printStackTrace();
                } catch (InterruptedException e) {
                        e.printStackTrace();
                }

It gives me following error:

 java.io.IOException: Cannot run program "/net/sl/sc/jdk6/bin/java -cp /sc/sug/p-lib/*  Tdesigner -cd /pr -in ing.rsp -out /scratch/sug/ng.pla -ad -stopOnError ": java.io.IOException: error=2, No such file or directory
            at java.lang.ProcessBuilder.start(ProcessBuilder.java:460)
            at java.lang.Runtime.exec(Runtime.java:593)
            at java.lang.Runtime.exec(Runtime.java:466)

Can anyone help me to solve the issue. is it that i need to add individual jar files with -cp rather than setting the directory.

Reimeus · Accepted Answer · 2012-10-15 22:23:10Z

3

Try removing the extra -cp from the command string array and use individual tokens in the array:

String[] command = { java_home + "/bin/java", "-cp",
   "/sc/sug/p-lib/*", "Tdesigner", "-cd", "/pr", "-in", "ing.rsp",
   "-out", "/scratch/sug/ng.pla", "-ad", "-stopO" };

edited Oct 15, 2012 at 22:23

answered Oct 15, 2012 at 22:17

Reimeus

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Comments

user207421 · Accepted Answer · 2012-10-15 22:02:48Z

2

If you use exec(String[]) you must provide the command and its arguments in separate array elements, not all in one as you have done.

answered Oct 15, 2012 at 22:02

user207421

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2 Comments

user1731553 Over a year ago

String[] command = {""+java_home+"/bin/java -cp /sc/sug/p-lib/* Tdesigner", "-cd", "/pr", "-in", "ing.rsp", "-out" , "/scratch/sug/ng.pla" ,"-ad", "-stopO"}; Modified the command still get the same error.:(

Ricky Clarkson Over a year ago

You still have the java -cp /sc/.../* Tdesigner as all one string, it needs to be separated. Otherwise instead of calling java and passing it the arguments -cp etc., you are trying to run a program called java -cp /sc/...

Haimei · Accepted Answer · 2014-06-17 18:58:50Z

0

I use scala. Here is my code:

Runtime.getRuntime.exec(Array("/bin/bash", "-c", #your_command)).waitFor()

I think it is easy to understand for others who use java.

answered Jun 17, 2014 at 18:58

Haimei

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