Package net.neoforged.fml.loading

Class ClassLoadingGuardian

java.lang.Object

net.neoforged.fml.loading.ClassLoadingGuardian

All Implemented Interfaces:

AutoCloseable

final class ClassLoadingGuardian
extends Object
implements AutoCloseable

Implements protections against accidentally loading classes owned by mods or Minecraft from any classloader but a given, blessed loader (the transforming class loader).

Field Summary

Fields

Modifier and Type	Field	Description
private ClassLoader	allowedClassLoader
private final ClassFileTransformer	guardianTransformer
private final Instrumentation	instrumentation
private static final org.slf4j.Logger	LOGGER
private final Set<String>	protectedPackages
private boolean	uninstalled

Constructor Summary

Constructors

Constructor	Description
ClassLoadingGuardian(Instrumentation instrumentation, List<ModFile> gameContent)

Method Summary

Modifier and Type	Method	Description
void	close()
static void	fail()	NOTE: this is referenced by the generated self-destructing classes when an incorrect class is accessed via the transformer.
private static @Nullable String	getPackageName(String className)
private static Set<String>	getPackages(List<ModFile> gameContent)
private boolean	isReachableFrom(ClassLoader classLoader, ClassLoader origin)
void	setAllowedClassLoader(ClassLoader allowedClassLoader)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

instrumentation

private final Instrumentation instrumentation

protectedPackages

private final Set<String> protectedPackages

guardianTransformer

private final ClassFileTransformer guardianTransformer

uninstalled

private volatile boolean uninstalled

allowedClassLoader

private volatile ClassLoader allowedClassLoader

Constructor Details

ClassLoadingGuardian

public ClassLoadingGuardian(Instrumentation instrumentation,
 List<ModFile> gameContent)

Method Details

fail

public static void fail()

NOTE: this is referenced by the generated self-destructing classes when an incorrect class is accessed via the transformer.

setAllowedClassLoader

public void setAllowedClassLoader(ClassLoader allowedClassLoader)

close

public void close()

Specified by:

close in interface AutoCloseable

getPackages

private static Set<String> getPackages(List<ModFile> gameContent)

isReachableFrom

private boolean isReachableFrom(ClassLoader classLoader,
 ClassLoader origin)

getPackageName

@Nullable
private static @Nullable String getPackageName(String className)