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https://issues.apache.org/jira/browse/AVRO-1166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13456153#comment-13456153
]
Amine R. commented on AVRO-1166:
--------------------------------
Hello Doug,
Thanks for getting back to us so quickly
java.lang.RuntimeException: org.apache.avro.AvroTypeException: Map key class
not CharSequence: class java.lang.String
Caused by: org.apache.avro.AvroTypeException: Map key class not CharSequence:
class java.lang.String
at
org.apache.avro.specific.SpecificData.createSchema(SpecificData.java:180)
at
org.apache.avro.specific.SpecificData.getSchema(SpecificData.java:140)
at com.foo.bar.encode.AvroEncoder.encode(AvroEncoder.java:44)
... 7 more
the encode method has this body :
{code}
public byte[] encode(Object object, Type type) throws IOException {
SpecificDatumWriter<Object> writer = new
SpecificDatumWriter<Object>(SpecificData.get().getSchema(type));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
JsonEncoder encoder =
EncoderFactory.get().jsonEncoder(SpecificData.get().getSchema(type), baos);
writer.write(object, encoder);
encoder.flush();
return baos.toByteArray();
}
{code}
> IDL return type of map<record> fails in schema processing
> ---------------------------------------------------------
>
> Key: AVRO-1166
> URL: https://issues.apache.org/jira/browse/AVRO-1166
> Project: Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.7.1
> Reporter: George Fletcher
>
> An IDL construct such as ...
> {code:title=Foo.idl}
> protocol MyService {
> record Bar {
> int count;
> string message;
> }
> map<Bar> getBars();
> }
> {code}
> generates run-time errors because of this code in SpecificData.java
> {code:title=SpecificData.java lines 189-196}
> } else if (Map.class.isAssignableFrom(raw)) { // map
> java.lang.reflect.Type key = params[0];
> java.lang.reflect.Type value = params[1];
> if (!(type instanceof Class
> && CharSequence.class.isAssignableFrom((Class)type)))
> throw new AvroTypeException("Map key class not CharSequence: "+key);
> return Schema.createMap(createSchema(value, names));
> } else {
> {code}
> the issue is that CharSequence.class.isAssignableFrom((Class)type)) should
> really be CharSequence.class.isAssignableFrom((Class)*key*))
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