Spring Boot Dev Tools causes IllegalArgumentException

[johnfreier]

Current Behavior

I'm not sure if this is an OGM issue or not, but I thought I would call it out because it took some time to debug and figure out.

When Spring-Boot Dev Tools dependency(2.2.2.RELEASE) is included in my pom.xml with OGM version 3.2.3+ I receive mapping issues from OGM, and an IllegalArgumentException exception is thrown whenever I try and access an OGM mapped object.

This does not happen with version 3.2.2.

Steps to Reproduce (for bugs)

Include Spring Boot Dev Tools in the pom.xml

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>

Your Environment

• Spring Boot Starter Parent: 2.2.2.RELEASE
• OGM Version used: 3.2.3+
• Java Version used: 1.8
• Neo4J Version used: 3.2.6
• Bolt Driver Version used (if applicable):
• Operating System and Version: OSX
• Link to your project:

[michael-simons]

Please share your domain object.

[michael-simons]

Thanks for the report. We use a library called ClassGraph to scan classes eligible for mapping. That library allows for loading those classes as well and in the latest update, we did this. However, the library does not work with the Restart Class Loader of Devtools anymore (see related issue here classgraph/classgraph#396), so we decided to load the scanned classes our selves again.

Fix will be available in the next patch release. Thank you.