Question

I am trying to connect to my tomcat server with jconsole via jmxmp protocol. I put jmxremote_optional.jar everywhere in jdk and jre folders, but when I try to connect I still get:

malformed exception: unsupported protocol

How can I enable this protocol? Thanks a lot!

Answer 1

You also need to make sure that the JVM arguments have JMX enabled. The following arguments to the JVM are required:

java \
    -Dcom.sun.management.jmxremote \
    -Dcom.sun.management.jmxremote.authenticate=false \
    ...

Here’s a page on how to enable JMX using Tomcat.

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Edit:

I believe that ultimately, this was a classpath issue. Here’s a page which gives some examples about how to set the classpath when running jconsole. It is something like:

jconsole -J-Djava.class.path=$JAVA_HOME/lib/jconsole.jar:\
    $JAVA_HOME/lib/tools.jar:\
    $WLS_HOME/lib/wljmxclient.jar \
    -J-Djmx.remote.protocol.provider.pkgs=weblogic.management.remote