| Interface | Description | 
|---|---|
| IClassNameTransformer | |
| IClassTransformer | |
| IDownloadDisplay | |
| IFMLCallHook | 
 This call hook allows for code to execute at the very early stages of
 minecraft initialization. 
 | 
| IFMLLoadingPlugin | 
 The base plugin that provides class name meta information to FML to
 enhance the classloading lifecycle for mods in FML 
 | 
| ILibrarySet | 
 Interface for certain core plugins to register libraries to
 be loaded in by the FML class loader at launch time 
 | 
| Class | Description | 
|---|---|
| ArgsWrapper | |
| CoreFMLLibraries | |
| Downloader | |
| DummyDownloader | |
| FMLCorePlugin | |
| FMLInjectionData | |
| FMLRelauncher | |
| FMLRelaunchLog | |
| ReflectionHelper | 
 Some reflection helper code. 
 | 
| RelaunchClassLoader | |
| RelaunchLibraryManager | 
| Enum | Description | 
|---|---|
| Side | 
| Annotation Type | Description | 
|---|---|
| IFMLLoadingPlugin.MCVersion | 
 Use this to target a specific minecraft version for your coremod. 
 | 
| IFMLLoadingPlugin.TransformerExclusions | 
 Annotate your load plugin with a list of package prefixes that will *not* be
 processed by the ASM transformation stack. 
 | 
| SideOnly |