update dockerfile

Author: litongjava

frameworks/Java/tio-http-server/tio-server.dockerfile

@@ -6,12 +6,13 @@ RUN mvn dependency:go-offline
 
 COPY src src
 RUN mvn package -Passembly -q
+RUN ls -l && ls -l target
 
 FROM litongjava/jre:8u391-stable-slim
 
 WORKDIR /app
 
-COPY --from=builder /src/target/tio-http-server-benchmark-1.0.jar /app/target/tio-http-server-benchmark-1.0.jar
+COPY --from=builder /app/target/tio-http-server-benchmark-1.0.jar /app/target/tio-http-server-benchmark-1.0.jar
 
 EXPOSE 8080