GarbageCollectorMXBean (Java SE 17 & JDK 17)
Description: declaration: module: jdk.management, package: com.sun.management, interface: GarbageCollectorMXBean
Keywords: com.sun.management.GarbageCollectorMXBean interface

Module jdk.management
Package com.sun.management

# Interface GarbageCollectorMXBean

All Superinterfaces:
  `GarbageCollectorMXBean`, `MemoryManagerMXBean`, `PlatformManagedObject`

public interface GarbageCollectorMXBean extends GarbageCollectorMXBean
Platform-specific management interface for a garbage collector which performs collections in cycles.

This platform extension is only available to the garbage collection implementation that supports this extension.

Since:
  1.5

- ## Method Summary

  Modifier and Type
  Method
  Description
  `GcInfo`
  `getLastGcInfo()`
  Returns the GC information about the most recent GC.

  ### Methods declared in interface java.lang.management.GarbageCollectorMXBean

  `getCollectionCount, getCollectionTime`

  ### Methods declared in interface java.lang.management.MemoryManagerMXBean

  `getMemoryPoolNames, getName, isValid`

  ### Methods declared in interface java.lang.management.PlatformManagedObject

  `getObjectName`

- ## Method Details

  - ### getLastGcInfo

    GcInfo getLastGcInfo()
    Returns the GC information about the most recent GC. This method returns a `GcInfo`. If no GC information is available, `null` is returned. The collector-specific attributes, if any, can be obtained via the `CompositeData` interface.

    MBeanServer access: The mapped type of `GcInfo` is `CompositeData` with attributes specified in `GcInfo`.

    Returns:
      a `GcInfo` object representing the most GC information; or `null` if no GC information available.