Chris Dessonville created AVRO-2771:
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Summary: Java 1.9.X doesn't allow having Error in a Record
Key: AVRO-2771
URL: https://issues.apache.org/jira/browse/AVRO-2771
Project: Apache Avro
Issue Type: Bug
Components: java
Affects Versions: 1.9.2, 1.9.1, 1.9.0
Reporter: Chris Dessonville
While trying to upgrade from AVRO 1.8.2 to 1.9.X, we hit an unexpected
compilation error. The same code works fine in 1.8.2 and even sends over the
wire correctly, so it's definitely been supported historically. The issue
occurs when you put an {{error}} inside of a {{record}}. I've created a
project (further below) to show the issue.
The errors seen is this:
{code:java}
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR]
/Users/chris/git/github/cddude229/avro-1-9-x-error-in-record/target/generated-sources/avro/MyRecord.java:[324,19]
cannot find symbol
symbol: method customEncode(org.apache.avro.io.Encoder)
location: variable someError of type MyError
[ERROR]
/Users/chris/git/github/cddude229/avro-1-9-x-error-in-record/target/generated-sources/avro/MyRecord.java:[336,21]
cannot find symbol
symbol: method customDecode(org.apache.avro.io.ResolvingDecoder)
location: variable someError of type MyError
[ERROR]
/Users/chris/git/github/cddude229/avro-1-9-x-error-in-record/target/generated-sources/avro/MyRecord.java:[345,25]
cannot find symbol
symbol: method customDecode(org.apache.avro.io.ResolvingDecoder)
location: variable someError of type MyError
[INFO] 3 errors {code}
Sample project: [https://github.com/cddude229/avro-1-9-x-error-in-record]
Commands you can use (defaults to 1.8.2 since that compiles):
{code:java}
mvn install -Davro.version=1.9.2
mvn install -Davro.version=1.8.2{code}
In terms of solutions, I'd love to see the old behavior restored. However, if
avro is moving to stop supporting an {{error}} in a {{record}}, then I'd
suggest that this be a schema validation/error then, instead of while compiling
Java.
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