ClassInjector

All Known Implementing Classes:

ClassInjector.AbstractBase, ClassInjector.UsingInstrumentation, ClassInjector.UsingJna, ClassInjector.UsingLookup, ClassInjector.UsingReflection, ClassInjector.UsingUnsafe
```
public interface ClassInjector
```
A class injector is capable of injecting classes into a ClassLoader without requiring the class loader to being able to explicitly look up these classes.

Important: Byte Buddy does not supply privileges when injecting code. When using a java.lang.SecurityManager, the user of this injector is responsible for providing access to non-public properties.

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static class`	`ClassInjector.AbstractBase`	An abstract base implementation of a class injector.
`static class`	`ClassInjector.UsingInstrumentation`	A class injector using a `Instrumentation` to append to either the boot classpath or the system class path.
`static class`	`ClassInjector.UsingJna`	A class injector using JNA to invoke JNI's define class utility for defining a class.
`static class`	`ClassInjector.UsingLookup`	A class injector that uses a `java.lang.invoke.MethodHandles$Lookup` object for defining a class.
`static class`	`ClassInjector.UsingReflection`	A class injector that uses reflective method calls.
`static class`	`ClassInjector.UsingUnsafe`	A class injector that uses `sun.misc.Unsafe` or `jdk.internal.misc.Unsafe` to inject classes.

Field Summary

Fields
Modifier and Type	Field	Description
`static boolean`	`ALLOW_EXISTING_TYPES`	Determines the default behavior for type injections when a type is already loaded.
`static java.security.Permission`	`SUPPRESS_ACCESS_CHECKS`	A permission for the `suppressAccessChecks` permission.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.util.Map<TypeDescription,java.lang.Class<?>>`	`inject(java.util.Map<? extends TypeDescription,byte[]> types)`	Injects the given types into the represented class loader.
`java.util.Map<java.lang.String,java.lang.Class<?>>`	`injectRaw(java.util.Map<? extends java.lang.String,byte[]> types)`	Injects the given types into the represented class loader using a mapping from name to binary representation.
`boolean`	`isAlive()`	Indicates if this class injector is available on the current VM.

- Field Detail
  - SUPPRESS_ACCESS_CHECKS
```
static final java.security.Permission SUPPRESS_ACCESS_CHECKS
```
    A permission for the suppressAccessChecks permission.
  - ALLOW_EXISTING_TYPES
```
static final boolean ALLOW_EXISTING_TYPES
```
    Determines the default behavior for type injections when a type is already loaded.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - isAlive
```
boolean isAlive()
```
    Indicates if this class injector is available on the current VM.
    
    Returns:
    
    true if this injector is available on the current VM.
  - inject
```
java.util.Map<TypeDescription,java.lang.Class<?>> inject(java.util.Map<? extends TypeDescription,byte[]> types)
```
    Injects the given types into the represented class loader.
    
    Parameters:
    
    types - The types to load via injection.
    
    Returns:
    
    The loaded types that were passed as arguments.
  - injectRaw
```
java.util.Map<java.lang.String,java.lang.Class<?>> injectRaw(java.util.Map<? extends java.lang.String,byte[]> types)
```
    Injects the given types into the represented class loader using a mapping from name to binary representation.
    
    Parameters:
    
    types - The types to load via injection.
    
    Returns:
    
    The loaded types that were passed as arguments.