[CALCITE-4417] "Two non-abstract methods ... have the same parameter types"

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.26.0
• Component/s: core

Environment

$ java -version
openjdk version "11.0.9" 2020-10-20
OpenJDK Runtime Environment (build 11.0.9+11)
OpenJDK 64-Bit Server VM (build 11.0.9+11, mixed mode)

$ git rev-parse HEAD
cfa37c3fd6ae18894035721d9f1eacde40e6b268

• Assignee: Unassigned
• Reporter: Alexander Staubo
• Created: 22/Nov/20 20:08
• Updated: 24/Nov/20 05:02

Description

I'm trying out the Elasticsearch adapter. My query:

select p._MAP['id'] as id, d._MAP['id'] as dept
from "test_person" p
join "test_department" d on d._MAP['id'] = p._MAP['department._ref']
where p._MAP['department._ref'] is not null
limit 1;

This fails with:

Error while compiling generated Java code: [...]
Caused by: org.codehaus.janino.InternalCompilerException: Compiling "Baz": Two non-abstract methods "public int Baz$4.compare(java.lang.Object, java.lang.Object)" have the same parameter types, declaring type and return type

Full debug output: error.out

Issue Links

• duplicates: CALCITE-4329 Bridge methods in enumerable adapter should be skipped when actual type is Object