Realm-java: Incorrect IllegalArgumentException: isNotEmpty() only works on String, byte[] and RealmList across links.

Created on 4 Jul 2017 · 4Comments · Source: realm/realm-java

I might have found a regression between 3.3.2 and 3.4.0.

At this point I can not give a sample project but the setup of my model.

Goal

Correctly build a query which checks for non-emptiness across links. My model has the following structure:

Department has a RealmList<Page> pages.
Page has a RealmList<Element> elements

My query looks like the following:
realm.where(Department.class).isNotEmpty("pages.elements")

Expected Results

Correctly build the query without crashing.

Actual Results

java.lang.IllegalArgumentException: Illegal Argument: isNotEmpty() only works on String, byte[] and RealmList across links.
                                                                     at io.realm.internal.TableQuery.nativeIsNotEmpty(Native Method)
                                                                     at io.realm.internal.TableQuery.isNotEmpty(TableQuery.java:399)
                                                                     at io.realm.RealmQuery.isNotEmpty(RealmQuery.java:1514)

Steps & Code to Reproduce

I just switched to v3.4.0 and the crash occured. Reverting back to 3.3.2 'fixes' the issue.

Code Sample

At this point I can not give any sample code but hope to provide one at a later time.

Version of Realm and tooling

Realm version(s): v3.3.2 and v3.4.0

Realm sync feature enabled: no

Android Studio version: Android Studio 3.0 Canary 4

Which Android version and device:

1: Android 8.0.0 Preview, Patch level May 5 2017, Pixel C tablet
2: Android 7.0, Patch Level June 1 2017, Samsung Galaxy S8

Source

degill

All 4 comments

@degill I believe this is fixed in the latest snapshot by https://github.com/realm/realm-java/pull/4870 (and maybe https://github.com/realm/realm-java/pull/4889 ) can you please verify with 3.4.1-SNAPSHOT ? (if that doesn't exist, then it's 3.5.0-SNAPSHOT)