Bart created AVRO-2122:
--------------------------
Summary: Cannot validate schemas with recursive definitions
Key: AVRO-2122
URL: https://issues.apache.org/jira/browse/AVRO-2122
Project: Avro
Issue Type: Bug
Components: java
Affects Versions: 1.8.2
Reporter: Bart
Validating a schema with a recursive definition will lead to a stack overflow.
When using the following schema definition:
{noformat}
@namespace("avro")
protocol Unused {
record Node {
union { null, Node } value = null;
}
}
{noformat}
{code:java}
final SchemaValidator backwardValidator = new SchemaValidatorBuilder()
.canReadStrategy().validateLatest();
backwardValidator.validate(Node.SCHEMA$, Arrays.asList(Node.SCHEMA$));
{code}
It results in a stack trace:
{noformat}
java.lang.StackOverflowError
at org.apache.avro.io.parsing.Symbol.hasErrors(Symbol.java:406)
at org.apache.avro.io.parsing.Symbol.hasErrors(Symbol.java:392)
at org.apache.avro.io.parsing.Symbol.hasErrors(Symbol.java:383)
at org.apache.avro.io.parsing.Symbol.hasErrors(Symbol.java:406)
at org.apache.avro.io.parsing.Symbol.hasErrors(Symbol.java:392)
at org.apache.avro.io.parsing.Symbol.hasErrors(Symbol.java:406)
at org.apache.avro.io.parsing.Symbol.hasErrors(Symbol.java:374)
at org.apache.avro.io.parsing.Symbol.hasErrors(Symbol.java:406)
...
{noformat}
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