NoClassDefFoundError Trying to Start orientdb-gremlin

[Jonathan Cook]

I'm trying to start the gremlin console and I get this java error:

Exception in thread "main" java.lang.NoClassDefFoundError: com/tinkerpop/gremlin/groovy/console/Console

Caused by: java.lang.ClassNotFoundException: com.tinkerpop.gremlin.groovy.console.Console

at java.net.URLClassLoader$1.run(URLClassLoader.java:202)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

I'm sure it's a simple class path problem but I don't know what I should be doing to fix it ...

Any help would be appreciated.

Regards,

J5

[Luca Garulli]

What release are you using?

Lvc@

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[Jonathan Cook]

1.7rc1

[Jonathan Cook]

This problem is really getting to me.  My codebase uses both SQL and Gremlin/Groovy and I need to be able to prototype / write my queries interactively.

I am on OS X, using OrientDB 1.7rc1, executing orientdb-gremlin command.

Please help! :)

J5

[Damian Bronecki]

If you are using Maven, then you must add this to your pom.xml:

<dependency>
   <groupId>com.tinkerpop.gremlin</groupId>
   <artifactId>gremlin-groovy</artifactId>
   <version>2.4.0</version>
</dependency>

Otherwise you must download jar and add it to classpath.

Just read instructions from this site:
https://github.com/tinkerpop/gremlin/wiki

[Jonathan Cook]

This issue isn't with including GremlinGroovy in my project / maven pom, it's with figuring out where the orientdb-gremlin console is trying to look for libs so I can put gremlin-groovy into the path there.

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jonathan 'j5' cook   |  lead developer  |   always prepped

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[Damian Bronecki]

I think this will be ORIENTDB_HOME/lib folder
Try to download gremlin-groovy jar and put there.

[Jonathan Cook]

For anyone else who has this problem, it happens because of symlinks.  The scripts don't take into account the fact that they might be executed as symlinks and so the classpath is not properly set.  The line to change is:

cd `dirname $0`

if you have an $ORIENTDB_HOME environment variable, I believe you can change it to:

cd "$ORIENTDB_HOME\bin"

I use some other bash code that resolves the symlink:

SOURCE="${BASH_SOURCE[0]}"

while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink

  DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"

  SOURCE="$(readlink "$SOURCE")"

  [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located

done

DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"

#set current working directory

cd $DIR

J5

On Sun, Mar 9, 2014 at 4:55 AM, Damian Bronecki <broneck...@gmail.com> wrote:

I think this will be ORIENTDB_HOME/lib folder
Try to download gremlin-groovy jar and put there.

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[Luca Garulli]

Hi Jonathan,

is this universal (Linux, MacOSX, Unix in general) we can apply on default distribution?

Lvc@

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