cannot execute binary file: Exec format error

Question

I ran a java executable file using the following command

java -cp .;aa/bb/cc/dd/Main.jar aa.bb.cc.dd.Main

where aa.bb.cc.dd is the package that has all the .java, .class, and Main.jar files and this package is inside the src folder from where I am running this command. I am getting an error

cannot execute binary file: Exec format error

Can anyone tell me where I am going wrong.

Using a semicolon begins a new shell command, so the system is trying to treat the jar as a native executable rather than run it on the jvm. — Chris Stratton
– Chris Stratton, Commented Nov 29, 2014 at 13:04

Vijayanand Thangavelu · Accepted Answer · 2020-01-27 07:38:53Z

1

Semi-colon in bash is used to separate commands. So in your case

java -cp .;aa/bb/cc/dd/Main.jar aa.bb.cc.dd.Main

java -cp . and aa/bb/cc/dd/Main.jar aa.bb.cc.dd.Main are considered as two separate commands and executed in sequence.

The issue can be fixed by changing the ";" to ":".

The path delimiter for java class path is ":" and not ";".

answered Jan 27, 2020 at 7:38

Vijayanand Thangavelu

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