[jira] [Created] (AVRO-2356) Encoder Cannot Be Null

[David Mollitor (JIRA)]

David Mollitor created AVRO-2356:
------------------------------------

             Summary: Encoder Cannot Be Null
                 Key: AVRO-2356
                 URL: https://issues.apache.org/jira/browse/AVRO-2356
             Project: Apache Avro
          Issue Type: Improvement
          Components: java
    Affects Versions: 1.9.0
            Reporter: David Mollitor
            Assignee: David Mollitor


I was recently doing some debugging and writing tests for Avro and I received 
the following stack trace:

{code}
java.lang.NullPointerException: null of E in field f of R
        at 
org.apache.avro.generic.GenericDatumWriter.npe(GenericDatumWriter.java:147)
        at 
org.apache.avro.generic.GenericDatumWriter.writeWithoutConversion(GenericDatumWriter.java:141)
        at 
org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:77)
        at 
org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:64)
{code}

That took me quite awhile to decipher.  How about me Avro a library for 
laypeople.  I propose:

{code}
java.lang.NullPointerException: Encoder cannot be null
        at java.util.Objects.requireNonNull(Objects.java:228)
        at 
org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:63)
        at 
org.apache.avro.test.basic.ExtendedEnumPerf.encode(ExtendedEnumPerf.java:26)
{code}



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