[FLINK-3866] StringArraySerializer claims type is immutable; shouldn't

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.0.3
• Fix Version/s: 1.1.2, 1.2.0
• Assignee: Ivan Mushketyk
• Reporter: Tatu Saloranta
• Created: 03/May/16 23:35
• Updated: 28/Feb/19 13:20
• Resolved: 23/Aug/16 14:29

Description

Looking at default `TypeSerializer` instances I noticed what looks like a minor flaw, unless I am missing something.
Whereas all other array serializers indicate that type is not immutable (since in Java, arrays are not immutable), `StringArraySerializer` has:

```
@Override
public boolean isImmutableType()

{ return true; }

```

and I think it should instead return `false`. I could create a PR, but seems like a small enough thing that issue report makes more sense.
I tried looking for deps to see if there's a test for this, but couldn't find one; otherwise could submit a test fix.

Issue Links

• is cloned by: FLINK-3921 StringParser not specifying encoding to use
• links to: GitHub Pull Request #2289