-bash: /opt/jdk1.8.0_171/bin/java: Permission denied

/opt# chmod -R 755 jdk1.8.0_171/

/opt# java -version
java version "1.8.0_171"
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)
/opt#