[OLINGO-1325] EntityUUID - non-unique temp key

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: (Java) V4 4.5.0
• Component/s: odata4-ext
• Assignee: Unassigned
• Reporter: Frederik Zimmer
• Created: 19/Dec/18 12:23
• Updated: 19/Dec/18 12:23

Description

We are using ext-proxy and a deep insert which produces incorrect results when having many related entities. The reason for this is that in the class EntityUUID for new entities a tempKey is computed like this

this.tempKey = (int) (Math.random() * 1000000);

which for many newly created entities causes collisions so that two new different entities are considered equal by the equals method.

I think the whole point of the tempKey is to make new entities unique as long as they don't have a real key. Random numbers are not suited for that but you could make tempKey an object and then say

this.tempKey = new Object();

which should guarantee that every new entity is unique.