Module jdk.jdi
Package com.sun.jdi.request

# Interface ClassUnloadRequest

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 declared in interface com.sun.jdi.request.EventRequest

`SUSPEND_ALL, SUSPEND_EVENT_THREAD, SUSPEND_NONE`

## Method Summary

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 declared in interface com.sun.jdi.request.EventRequest

`addCountFilter, disable, enable, getProperty, isEnabled, putProperty, setEnabled, setSuspendPolicy, suspendPolicy`

### Methods declared in interface com.sun.jdi.Mirror

`toString, virtualMachine`

## Method Details

### 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.