java.lang.NoClassDefFoundError: Could not initialize class de.tuberlin.dima.schubotz.fse.utils.ExtractHelper

GitHub | jimmyli97 | 3 years ago
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    NoClassDefFound exception when running query preprocessor

    GitHub | 3 years ago | jimmyli97
    java.lang.NoClassDefFoundError: Could not initialize class de.tuberlin.dima.schubotz.fse.utils.ExtractHelper

    Root Cause Analysis

    1. java.lang.NullPointerException

      xmlConfigurationStream is null

      at cz.muni.fi.mir.mathmlcanonicalization.MathMLCanonicalizer.<init>()
    2. cz.muni.fi
      MathMLCanonicalizer.<init>
      1. cz.muni.fi.mir.mathmlcanonicalization.MathMLCanonicalizer.<init>(MathMLCanonicalizer.java:95)
      1 frame
    3. de.tuberlin.dima
      DataPreprocess.flatMap
      1. de.tuberlin.dima.schubotz.fse.utils.ExtractHelper.<clinit>(ExtractHelper.java:28)
      2. de.tuberlin.dima.schubotz.fse.mappers.preprocess.DataPreprocess.flatMap(DataPreprocess.java:57)
      3. de.tuberlin.dima.schubotz.fse.mappers.preprocess.DataPreprocess.flatMap(DataPreprocess.java:17)
      3 frames
    4. eu.stratosphere.pact
      ChainedFlatMapDriver.collect
      1. eu.stratosphere.pact.runtime.task.chaining.ChainedFlatMapDriver.collect(ChainedFlatMapDriver.java:71)
      1 frame
    5. de.tuberlin.dima
      QueryCleaner.flatMap
      1. de.tuberlin.dima.schubotz.fse.mappers.cleaners.QueryCleaner.flatMap(QueryCleaner.java:55)
      1 frame