question Re: Cannot see Javac after successfully installing OpenJDK 1.7. (-bash: javac: command not found error) in Archives of Support Questions (Read Only)

Cannot see Javac after successfully installing OpenJDK 1.7. (-bash: javac: command not found error)

pradeep_tp — Tue, 04 Apr 2017 16:18:53 GMT

I have HDP 2.4. I have installed OpenJDK 1.7 as mentioned in the following link. The installation happens without any error. Step 5 in this link mentions the line 'ln -s /usr/hdp/current/jvm/java-1.7.0-openjdk-1.7.0.51.x86_64 /usr/java/default'. I do not see any folder called JVM under /usr/hdp/current. I also executed java -version, but I still see Java RE, but no JDK. What am I doing wrong?. Also, when I execute javac, i get the error -bash: javac: command not found

https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.3/bk_installing_manually_book/content/meet-min-system-requirements.html

Re: Cannot see Javac after successfully installing OpenJDK 1.7. (-bash: javac: command not found error)

jsensharma — Tue, 04 Apr 2017 16:27:43 GMT

@Pradeep kumar

Are you sure that you added "$JAVA_HOME/bin" to your PATH variable?

export JAVA_HOME=/usr/hdp/current/jvm/java-1.7.0-openjdk-1.7.0.51.x86_64
export PATH=$JAVA_HOME/bin:$PATH

Now you shoudl be able to run "javac" and "java --version"

Re: Cannot see Javac after successfully installing OpenJDK 1.7. (-bash: javac: command not found error)

pradeep_tp — Tue, 04 Apr 2017 16:34:06 GMT

If you read my post again you will see that I had mentioned that I do not see "jvm" folder under /usr/hdp/current. So there is no folder called /usr/hdp/current/jvm/java-1.7.0-openjdk-1.7.0.51.x86_64 in my system.

Re: Cannot see Javac after successfully installing OpenJDK 1.7. (-bash: javac: command not found error)

jsensharma — Tue, 04 Apr 2017 16:47:53 GMT

@Pradeep kumar

If you have installed JDK using yum then you should check the directory:

export JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.51.x86_64

The inside the $JAVA_HOME/bin you should find the "javac" and "java" executables.

Re: Cannot see Javac after successfully installing OpenJDK 1.7. (-bash: javac: command not found error)

pradeep_tp — Tue, 04 Apr 2017 17:39:00 GMT

the folder that I see in my machine is /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.131.x86_64, which I set it in the export JAVA_HOME command, but i still get the same error,i.e, it cannot find javac

Re: Cannot see Javac after successfully installing OpenJDK 1.7. (-bash: javac: command not found error)

pradeep_tp — Tue, 04 Apr 2017 18:14:51 GMT

Okay. I have fixed it. I have executed the above two commands, but gave /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.131.x86_64 for the openJDK path. Thanks for your help 🙂