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Posted to dev@avro.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2018/12/11 19:15:01 UTC
[jira] [Commented] (AVRO-2122) Cannot validate schemas with
recursive definitions
[ https://issues.apache.org/jira/browse/AVRO-2122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16717788#comment-16717788 ]
ASF subversion and git services commented on AVRO-2122:
-------------------------------------------------------
Commit 49471412e5a10ff7b4f2806a1af03372d12b7945 in avro's branch refs/heads/branch-1.8 from Bart
[ https://gitbox.apache.org/repos/asf?p=avro.git;h=4947141 ]
AVRO-2122: Cannot validate schemas with recursive definitions
Track which symbols have been visited to avoid StackOverflowErrors
when validating schemas with recursive definitions
This closes #276
Signed-off-by: Nandor Kollar <nk...@apache.org>
(cherry picked from commit 7f9cbca12af13d4b8b5709edba2bae4d4a808102)
> Cannot validate schemas with recursive definitions
> --------------------------------------------------
>
> Key: AVRO-2122
> URL: https://issues.apache.org/jira/browse/AVRO-2122
> Project: Apache Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.8.2
> Reporter: Bart
> Assignee: Bart
> Priority: Major
> Fix For: 1.7.8, 1.9.0, 1.8.3
>
>
> 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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