ProcessBuilder on a jar package in an executable jar as resources

Question

My java uses ProcessBuilder to run several commands using other jar that I have added in the resources.

It works fine in Eclipse, but once I export it to executable jar, it doesn't work:

//Defs Class has this line
public final static String APKTOOLS_JAR_PATH = Defs.class.getResource("/apktool.jar").getPath();

ProcessBuilder pb = new ProcessBuilder("java", "-jar", Defs.APKTOOLS_JAR_PATH, "d", apkPath, "-o", decodePath, "-f");
pb.redirectError(Redirect.INHERIT);
Process p = pb.start();

I get back:

Error: Unable to access jarfile apktool.jar

"it doesn't work". Please [edit] your question to describe specifically how it's failing. Is it producing any error messages? What do they say? — Kenster, Sep 30 '16 at 10:44
A full stacktrace is always helpful for us to understand the error.Provide it all.. — GOXR3PLUS, Sep 30 '16 at 11:14
@GoXR3Plus nothing else is printed, That is the whole error. It just can't point to the jar or can't access it — Mohamed Adel, Sep 30 '16 at 11:33

score 1 · Answer 1 · answered Sep 30 '16 at 17:35

1

The Java command executable cannot read a jar file from a jar file. It can only read from the file system. You would have to write the contents of that jar file into a temp file and pass that pathname to the ProcessBuilder.

answered Sep 30 '16 at 17:35

bmargulies

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ProcessBuilder on a jar package in an executable jar as resources

1 Answers1