Question 81315 in Docker Question posted in
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Docker image build fails to explode jar

I’m trying to create a multi-stage Dockerfile

FROM openjdk:11.0.7-jre-slim-buster AS build

... additional commands


RUN mkdir -p target/exploded && (cd target/exploded; jar -xf ../*.jar)

But it fails when trying to explode the .jar file, it is present under the target directory:

enter image description here

 => ERROR [build 7/7] RUN mkdir -p target/exploded && (cd
 target/exploded; jar -xf ../*.jar)
 /bin/sh: 1: jar: not found
 ------
 executor failed running [/bin/sh -c mkdir -p target/exploded && (cd target/exploded; 
 jar -xf ../*.jar)]: exit code: 127
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2

Answers


  1. Chosen as BEST ANSWER
    0

    I'm including Spring Cloud Contract as a dependency, it generates a ...stubs.jar file, causing a Docker conflict as it can't choose the proper jar to be exploded, now I'm updating the Dockerfile to target the correct .jar file.


  2. 0

    I suggest you to debug where the jar command is, in order to fully address it in your call by a:

    RUN find / -name jar

    The remove this line and prepend the found path to your jar invocation.

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