After installing the neosemantics 5.26.0 plugin on Neo4j Desktop 2.0, my database fails to start.

[fedorovychh]

Steps to Reproduce

1. Download and install Neo4j Desktop 2.0.
2. Create or open a database.
3. Install the neosemantics 5.26.0 plugin.
4. Attempt to start the database.

Observed Behavior

The database fails to start, showing the following error in the logs:

2025-10-11 08:09:25.956+0000 INFO  Starting...
2025-10-11 08:09:26.407+0000 WARN  SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
2025-10-11 08:09:26.407+0000 WARN  SLF4J: Defaulting to no-operation (NOP) logger implementation
2025-10-11 08:09:26.407+0000 WARN  SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
2025-10-11 08:09:26.652+0000 WARN  Exception in thread "main"
2025-10-11 08:09:26.652+0000 WARN  java.lang.NoSuchMethodError: 'com.fasterxml.jackson.annotation.OptBoolean com.fasterxml.jackson.annotation.JsonProperty.isRequired()'
    at com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector.hasRequiredMarker(JacksonAnnotationIntrospector.java:466)
    ...
2025-10-11 08:09:26.654+0000 INFO  Neo4j Server shutdown initiated by request
2025-10-11 08:09:26.655+0000 INFO  Stopped.

Expected Behavior

The database should start normally after installing the plugin.

Environment

• Neo4j Desktop: 2.0
• Neo4j 5.26.13
• Plugin: neosemantics 5.26.0
• Operating System: Ubuntu 24.04

Additional Notes

It seems that the error may be related to an incompatible Jackson library version (NoSuchMethodError for JsonProperty.isRequired()). This might indicate a dependency conflict between Neo4j’s bundled Jackson libraries and those used by the plugin.