getting java: incompatible types

[abhiseksharma]

Hi,

In the latest version of MELT, while running python matcher through "EvaluateDemoPythonMatcher.java", I'm getting "java: incompatible types: java.util.Map<java.lang.String,java.lang.String> cannot be converted to java.util.Map<java.lang.String,java.lang.Object>" in "EvaluatorBasic.java" at "extensionValues = determineExtensionValuesToWriteForCSV(er.getSystemAlignment().getExtensions()); (line 89)".

The above error started from "protected Map<String, String> extensions;" line inside "Alignment.class".

Tried some things but nothing worked. Kindly suggest what can we do to resolve this.

Thanks, Abhisek Sharma

[sven-h]

Hi Abhisek,

can you check if you use the same version for all MELT related packages such as matching-eval, matching-base, matching-jena, or yet-another-alignment-api. We changed the type of the correspondence extensions, but this was (hopefully) done consistently (therefore different versions might be the reason).

In case this does not solve your problem, can you provide a small example where the error happens?

Best regards Sven

[abhiseksharma]

It worked after your suggested changes. Thanks.

Kindly take a look at the below error:

[main] INFO de.uni_mannheim.informatik.dws.melt.matching_eval.ExecutionRunner - Running matcher demo on testcase iasted-sigkdd (track conference) completed in 1 second.
[main] INFO de.uni_mannheim.informatik.dws.melt.demomatcher.EvaluateDemoPythonMatcher - Python matcher run returned 0 correspondences.
[main] INFO de.uni_mannheim.informatik.dws.melt.matching_eval.evaluator.EvaluatorCSV - Evaluate matcher demo
[main] INFO de.uni_mannheim.informatik.dws.melt.matching_jena.OntologyCacheJena - Reading model into cache (file:/C:/Users/abhis/oaei_track_cache/oaei.webdatacommons.org/conference/conference-v1/ekaw-iasted/source.rdf)
[main] INFO de.uni_mannheim.informatik.dws.melt.matching_jena.OntologyCacheJena - Reading model into cache (file:/C:/Users/abhis/oaei_track_cache/oaei.webdatacommons.org/conference/conference-v1/ekaw-iasted/target.rdf)
[main] INFO de.uni_mannheim.informatik.dws.melt.matching_eval.ExecutionRunner - Running matcher baseLineMatcher on testcase ekaw-iasted (track conference).
[main] ERROR de.uni_mannheim.informatik.dws.melt.matching_eval.ExecutionRunner - Exception during matching (matcher baseLineMatcher on testcase ekaw-iasted).
de.uni_mannheim.informatik.dws.melt.matching_base.typetransformer.TypeTransformationException: No transformation route is found between [class java.net.URL] to class java.util.Properties
    at de.uni_mannheim.informatik.dws.melt.matching_base.typetransformer.TypeTransformerRegistry.getClassTransformationRouteMultipleRepresentations(TypeTransformerRegistry.java:350)
    at de.uni_mannheim.informatik.dws.melt.matching_base.typetransformer.TypeTransformerRegistry.getClassTransformationRoute(TypeTransformerRegistry.java:252)
    at de.uni_mannheim.informatik.dws.melt.matching_base.typetransformer.TypeTransformerRegistry.getObjectTransformationRoute(TypeTransformerRegistry.java:189)
    at de.uni_mannheim.informatik.dws.melt.matching_base.typetransformer.TypeTransformerRegistry.getObjectTransformationRoute(TypeTransformerRegistry.java:184)
    at de.uni_mannheim.informatik.dws.melt.matching_base.typetransformer.TypeTransformerRegistry.getTransformedObject(TypeTransformerRegistry.java:545)
    at de.uni_mannheim.informatik.dws.melt.matching_base.typetransformer.GenericMatcherCaller.runIMatcher(GenericMatcherCaller.java:300)
    at de.uni_mannheim.informatik.dws.melt.matching_base.typetransformer.GenericMatcherCaller.runMatcherMultipleRepresentations(GenericMatcherCaller.java:151)
    at de.uni_mannheim.informatik.dws.melt.matching_base.typetransformer.GenericMatcherCaller.runMatcher(GenericMatcherCaller.java:76)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.ExecutionRunner.runMatcher(ExecutionRunner.java:101)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.ExecutionRunner.runMatcher(ExecutionRunner.java:75)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.Executor.runSingle(Executor.java:59)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.refinement.ResidualRefiner.refine(ResidualRefiner.java:72)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.ExecutionResultSet.get(ExecutionResultSet.java:91)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.evaluator.EvaluatorCSV.writeOverviewFileMatcherTestCase(EvaluatorCSV.java:470)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.evaluator.EvaluatorCSV.writeResultsToDirectory(EvaluatorCSV.java:239)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.evaluator.Evaluator.writeToDirectory(Evaluator.java:90)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.evaluator.Evaluator.writeToDirectory(Evaluator.java:75)
    at de.uni_mannheim.informatik.dws.melt.demomatcher.EvaluateDemoPythonMatcher.main(EvaluateDemoPythonMatcher.java:26)
[main] INFO de.uni_mannheim.informatik.dws.melt.matching_eval.ExecutionRunner - Running matcher baseLineMatcher on testcase ekaw-iasted (track conference) completed in 0 seconds.
[main] ERROR de.uni_mannheim.informatik.dws.melt.matching_eval.ExecutionRunner - Matching task unsuccessful: output alignment equals null. (matcher: baseLineMatcher testcase: ekaw-iasted track: conference)
Exception in thread "main" java.lang.NullPointerException
    at java.base/java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011)
    at java.base/java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1006)
    at java.base/java.util.Collections$SetFromMap.add(Collections.java:5566)
    at com.googlecode.cqengine.persistence.support.CollectionWrappingObjectStore.add(CollectionWrappingObjectStore.java:84)
    at com.googlecode.cqengine.ConcurrentIndexedCollection.add(ConcurrentIndexedCollection.java:359)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.refinement.ResidualRefiner.refine(ResidualRefiner.java:73)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.ExecutionResultSet.get(ExecutionResultSet.java:91)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.evaluator.EvaluatorCSV.writeOverviewFileMatcherTestCase(EvaluatorCSV.java:470)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.evaluator.EvaluatorCSV.writeResultsToDirectory(EvaluatorCSV.java:239)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.evaluator.Evaluator.writeToDirectory(Evaluator.java:90)
    at de.uni_mannheim.informatik.dws.melt.matching_eval.evaluator.Evaluator.writeToDirectory(Evaluator.java:75)
    at de.uni_mannheim.informatik.dws.melt.demomatcher.EvaluateDemoPythonMatcher.main(EvaluateDemoPythonMatcher.java:26)

Process finished with exit code 1

Thanks Abhisek

[sven-h]

How do you execute it? With custom code or with the eval client? Can you maybe provide a small example which produces the error?

[abhiseksharma]

Hi Sven,

I was trying to run through eval client. I created a docker image and was testing on conference track. It was working fine on other tracks i.e., anatomy, etc. But giving this error over conference track.

Thanks Abhisek

[sven-h]

Hi Abhisek,

can you please provide the exact command line which you executed and maybe even the docker image? Maybe also the one which works and the one which doesn't work.

Best regards Sven

[sven-h]

in case the error still exists, please open another issue