You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@avro.apache.org by "Francois Secherre (JIRA)" <ji...@apache.org> on 2015/08/10 13:20:46 UTC
[jira] [Created] (AVRO-1716) Java Schema Generated sources, non
nullable, default defined fails on setField(null)
Francois Secherre created AVRO-1716:
---------------------------------------
Summary: Java Schema Generated sources, non nullable, default defined fails on setField(null)
Key: AVRO-1716
URL: https://issues.apache.org/jira/browse/AVRO-1716
Project: Avro
Issue Type: Bug
Components: java
Affects Versions: 1.7.7
Reporter: Francois Secherre
I define a schema descriptor like:
{code}
{
"namespace": "some.namespace",
"type": "record",
"name": "SomeBean",
"fields": [
{"name": "someField", "type": "string", "default": ""},
]
}
{code}
Then I generate some java classes, using org.apache.avro:avro-maven-plugin. In the builder methods I will get the following:
{code}
public some.namespace.SomeBean.Builder setSomeField(java.lang.CharSequence value) {
validate(fields()[0], value);
this.someField = value;
fieldSetFlags()[0] = true;
return this;
}
{code}
The Validate methode is like:
{code}
protected void validate(Field field, Object value) {
if(!isValidValue(field, value)) {
if(field.defaultValue() == null) {
throw new AvroRuntimeException("Field " + field + " does not accept null values");
}
}
}
{code}
So if I perform SomeBean.setSomeField(null), as the defaultValue is defined, no exception will raise. However, someField will get a null value. That lead to the following type of error:
{code}
java.lang.NullPointerException: null of string in field someField of some.namespace.SomeBean at org.apache.avro.generic.GenericDatumWriter.npe(GenericDatumWriter.java:93)
at org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:87)
at org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:58)
...
Caused by: java.lang.NullPointerException
at org.apache.avro.io.Encoder.writeString(Encoder.java:121)
at org.apache.avro.generic.GenericDatumWriter.writeString(GenericDatumWriter.java:213)
at org.apache.avro.generic.GenericDatumWriter.writeString(GenericDatumWriter.java:208)
at org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:76)
at org.apache.avro.generic.GenericDatumWriter.writeField(GenericDatumWriter.java:114)
at org.apache.avro.generic.GenericDatumWriter.writeRecord(GenericDatumWriter.java:104)
at org.apache.avro.generic.GenericDatumWriter.write(GenericDatumWriter.java:66)
... 7 more
{code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)