spring-projects/spring-loaded

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

2717 stars · 511 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Spring Loaded is a JVM agent that enables reloading of class file changes while a JVM is running, allowing methods, fields, constructors, annotations, and enum values to be added, modified, or deleted without restarting. It works on any JVM bytecode and is the reloading system used by Grails 2-4 on Java 8.

Use cases

• hot reload java classes without restarting the jvm
• add or modify methods and fields in a running java application
• speed up development iteration for grails applications
• reload class file changes on the fly during development
• modify annotations and enum values in a live jvm

When to choose

• you are developing on Java 8 and want richer hot-swapping than the JVM's built-in hot code replace
• you work with Grails 2, 3, or 4 and want its built-in reloading behavior
• you need to add, remove, or change methods, fields, or constructors without restarting the JVM

When to avoid

• you are running Java 11 or later, which is not yet supported
• you need to change class hierarchies or certain constructor usage patterns
• you want an actively developed tool with ongoing updates

Facets

library · maturity maintenance

developer-tools build-tool developer-tools programming-languages jvm cross-platform jvm-agent hot-reload class-reloading bytecode-transformation grails jvm

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