java.lang.NullPointerException

Stack Overflow | FullStack | 6 months ago
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.spark.sql.execution.datasources.jdbc.JDBCRDD$.resolveTable()
    2. org.apache.spark
      JDBCRelation.<init>
      1. org.apache.spark.sql.execution.datasources.jdbc.JDBCRDD$.resolveTable(JDBCRDD.scala:158)
      2. org.apache.spark.sql.execution.datasources.jdbc.JDBCRelation.<init>(JDBCRelation.scala:117)
      2 frames
    3. Spark Project SQL
      DataFrameReader.jdbc
      1. org.apache.spark.sql.DataFrameReader.jdbc(DataFrameReader.scala:237)
      2. org.apache.spark.sql.DataFrameReader.jdbc(DataFrameReader.scala:159)
      2 frames
    4. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:498)
      4 frames
    5. Py4J
      GatewayConnection.run
      1. py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:237)
      2. py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
      3. py4j.Gateway.invoke(Gateway.java:280)
      4. py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:128)
      5. py4j.commands.CallCommand.execute(CallCommand.java:79)
      6. py4j.GatewayConnection.run(GatewayConnection.java:211)
      6 frames
    6. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame