Run a jar file from a java file

Question

I am trying to run jar file from a java program I found this link : here. I use the following code:

ProcessBuilder pb = new ProcessBuilder("CEDDextractor_all_img.jar", "-jar", "cedd/");
    pb.directory(new File("cedd/"));
    Process p = pb.start();

However I m getting the error: Could not load image: Cannot run program "cedd/CEDDextractor_all_img.jar" (in directory "cedd"): CreateProcess error=193, %1 is not a valid Win32 application. I am little bit confused with the paths I need to specify.

Batch command:

java -jar CEDDextractor_all_img.jar -file "file.jpg"

score 1 · Accepted Answer · answered Apr 23 '14 at 07:46

1

ProcessBuilder pb = new ProcessBuilder("java", "-jar", "CEDDextractor_all_img.jar", "cedd/");
pb.directory(new File("cedd/"));
Process p = pb.start();

the executable is java :-) (could be javaw, too)

answered Apr 23 '14 at 07:46

cadrian

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Yea you are right, is java. I ve got 2 arguments which in command line is -file "file.jpg". I have to put them in two seperate args or just in one? – Jose Ramon Apr 23 '14 at 07:55
@FereRes The documentation for [`ProcessBuilder`](http://docs.oracle.com/javase/7/docs/api/java/lang/ProcessBuilder.html) contains usage info. – Jason C Apr 23 '14 at 07:57
Yes I ve already seen it. However, I am not sure that -file "file.jpg" is one or two args. – Jose Ramon Apr 23 '14 at 07:59
two args, I guess :-) – cadrian Apr 23 '14 at 08:32

score 1 · Answer 2 · answered Apr 23 '14 at 07:57

It's incorrect to invoke just "java", which might be not in PATH; you should use:

String jarPath = ...;
ProcessBuilder pb = new ProcessBuilder(System.getProperty("java.home")
        + File.separator
        + "bin"
        + File.separator
        + "java", "-jar", jarPath);
Process p = pb.start();

Run a jar file from a java file

2 Answers2