Before you view JVM performance information in the administration console, you want to request that the JVM do a garbage collection. How can you do this in the admin console?

The Oracle WebLogic Server Administration Console provides a mechanism to monitor Java Virtual Machine (JVM) performance for each server instance. On the Monitoring > Performance tab for a specific server, there is a button explicitly labeled "Garbage Collect." Clicking this button sends a request to the JVM to perform a full garbage collection. This is useful for obtaining a more accurate view of the current heap memory usage after unused objects have been cleared.

A: This is incorrect. The Administration Console provides a direct user interface button to request garbage collection, in addition to programmatic methods like WLST. B: "Dump thread Stacks" is a diagnostic tool for analyzing thread states and identifying deadlocks or performance bottlenecks, not for managing JVM memory. C: This option points to the wrong tab (Threads) and the wrong action. The Threads tab is for monitoring individual thread activity, not JVM heap management. E: While "GC" is a common abbreviation for Garbage Collection, the button in the WebLogic Server Administration Console is explicitly labeled "Garbage Collect".

1. Oracle Fusion Middleware Administering Oracle WebLogic Server with Oracle WebLogic Server Administration Console 12c (12.2.1.3)

Section: "Monitor JVM heap usage and garbage collection"

Content: "The Server -> Monitoring -> Performance page displays information about the JVM's heap usage. ... To request garbage collection

click Garbage Collect." This directly confirms the existence and exact labeling of the button on the specified page.

2. Oracle Fusion Middleware Oracle WebLogic Server Administration Console Online Help 12c (12.2.1.4)

Page: "Servers: Monitoring: Performance"

Content: Describes the performance summary page for a server. It details the "Garbage Collect" button

stating: "Click to request that the JVM perform garbage collection. After the JVM completes the garbage collection

this page is refreshed and displays the latest heap information." This confirms the button's name and function.