Java Module java.instrument Package java.lang.instrument Class ClassDefinition（JDK11）

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java.lang.Object
- java.lang.instrument.ClassDefinition

```
public final class ClassDefinition
extends Object
```
This class serves as a parameter block to the Instrumentation.redefineClasses method. Serves to bind the Class that needs redefining together with the new class file bytes.

Since:

1.5

See Also:

Instrumentation.redefineClasses(java.lang.instrument.ClassDefinition...)

Constructor Summary

Constructors
Constructor	Description
`ClassDefinition(Class<?> theClass, byte[] theClassFile)`	Creates a new `ClassDefinition` binding using the supplied class and class file bytes.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Class<?>`	`getDefinitionClass()`	Returns the class.
`byte[]`	`getDefinitionClassFile()`	Returns the array of bytes that contains the new class file.

Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ClassDefinition
```
public ClassDefinition(Class<?> theClass,
                       byte[] theClassFile)
```
    Creates a new ClassDefinition binding using the supplied class and class file bytes. Does not copy the supplied buffer, just captures a reference to it.
    
    Parameters:
    
    theClass - the Class that needs redefining
    
    theClassFile - the new class file bytes
    
    Throws:
    
    NullPointerException - if the supplied class or array is null.
- Method Detail
  - getDefinitionClass
```
public Class<?> getDefinitionClass()
```
    Returns the class.
    
    Returns:
    
    the Class object referred to.
  - getDefinitionClassFile
```
public byte[] getDefinitionClassFile()
```
    Returns the array of bytes that contains the new class file.
    
    Returns:
    
    the class file bytes.

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