ClassUnloadRequest (Java SE 9 & JDK 9 )

All Superinterfaces:

EventRequest, Mirror
```
public interface ClassUnloadRequest
extends EventRequest
```
Request for notification when a class is unloaded in the target VM. When an enabled ClassUnloadRequest is satisfied, a event set containing an ClassUnloadEvent will be placed on the EventQueue. The collection of existing ClassUnloadRequests is managed by the EventRequestManager
Refer to the Java Virtual Machine Specification for more information on class unloading.

Since:

1.3

See Also:

ClassUnloadEvent, EventQueue, EventRequestManager

Field Summary
- Fields inherited from interface com.sun.jdi.request.EventRequest
  SUSPEND_ALL, SUSPEND_EVENT_THREAD, SUSPEND_NONE

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addClassExclusionFilter(String classPattern)`	Restricts the events generated by this request to the unloading of reference types whose name does not match a restricted regular expression.
`void`	`addClassFilter(String classPattern)`	Restricts the events generated by this request to the unloading of reference types whose name matches a restricted regular expression.

Methods inherited from interface com.sun.jdi.request.EventRequest
addCountFilter, disable, enable, getProperty, isEnabled, putProperty, setEnabled, setSuspendPolicy, suspendPolicy

Methods inherited from interface com.sun.jdi.Mirror
toString, virtualMachine

- Method Detail
  - addClassFilter
```
void addClassFilter(String classPattern)
```
    Restricts the events generated by this request to the unloading of reference types whose name matches a restricted regular expression. Regular expressions are limited to exact matches and patterns that begin with '*' or end with '*'; for example, "*.Foo" or "java.*".
    
    Parameters:
    
    classPattern - the pattern String to filter for.
    
    Throws:
    
    InvalidRequestStateException - if this request is currently enabled or has been deleted. Filters may be added only to disabled requests.
  - addClassExclusionFilter
```
void addClassExclusionFilter(String classPattern)
```
    Restricts the events generated by this request to the unloading of reference types whose name does not match a restricted regular expression. Regular expressions are limited to exact matches and patterns that begin with '*' or end with '*'; for example, "*.Foo" or "java.*".
    
    Parameters:
    
    classPattern - the pattern String to filter against.
    
    Throws:
    
    InvalidRequestStateException - if this request is currently enabled or has been deleted. Filters may be added only to disabled requests.