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MapMatching constructor requires missing trove dependency?


Trying to run the map matching example, after slightly adapting it to fit the new map matching constructor, I receive the following error:

Exception in thread “main” java.lang.NoClassDefFoundError: gnu/trove/TIntCollection
Caused by: java.lang.ClassNotFoundException: gnu.trove.TIntCollection

On the last line of the following code:

String algorithm = Parameters.Algorithms.DIJKSTRA_BI;
Weighting weighting = new FastestWeighting(encoder);
AlgorithmOptions algoOptions = new AlgorithmOptions(algorithm, weighting);
MapMatching mapMatching = new MapMatching(hopper, algoOptions);

Adding the following dependency seems to solve this problem but creates a new one:
(remove spaces after every <)
> < dependency>

           < groupId>net.sf.trove4j < /groupId>
           < artifactId>trove4j < /artifactId>
           < version>3.0.3 < /version>
    < /dependency>

The new problem is then as follows, which might be caused by this new dependency:
Exception in thread “main” java.lang.NoSuchMethodError:;I)Z
at com.graphhopper.matching.LocationIndexMatch.findNClosest(
at com.graphhopper.matching.MapMatching.createTimeSteps(
at com.graphhopper.matching.MapMatching.doWork(

Thank you for any help!


There should not be any dependencies issues. Is this for the master branch?


Sorry for wasting your time!
I found the problem already, somewhere in a pom file I was using the 0.8.2 version of map matching core, changing this to 0.9-SNAPSHOT solved everything and it seems to work now.