Java SE 21 & JDK 21

The jaccessinspector Command

Name

jaccessinspector - examine accessible information about the objects in the Java Virtual Machine using the Java Accessibility Utilities API

Description

The jaccessinspector tool lets you select different methods for examining the object accessibility information:

After an object has been selected for examination, the jaccessinspector tool displays the results of calling Java Accessibility API methods on that object.

Running the jaccessinspector Tool

To use the jaccessinspector tool, launch the jaccessinspector tool after launching a Java application. To launch jaccessinspector, run the following command:

Note:

JAVA_HOME is an environment variable and should be set to the path of the JDK or JRE, such as c:\Program Files\Java\jdk-10.

%JAVA_HOME%\bin\jaccessinspector.exe

You now have two windows open: The Java application window and the jaccessinspector window. The jaccessinspector window contains five menus:

The items in UpdateSettings, JavaEvents, and AccessibilityEvents menus let you query Java applications in a variety of ways.

File Menu

This section describes the File menu items.

AccessBridge DLL Loaded
Enables and disables AccessBridge DLL Loaded.
Exit
Exits from the tool.

UpdateSettings Menu

This section describes the UpdateSettings menu items.

Update from Mouse
Determines the x- and y-coordinates of the mouse (assuming the jaccessinspector tool window is topmost) when the mouse has stopped moving, and then queries the Java application for the accessible object underneath the mouse, dumping the output into the jaccessinspector window.
Update with F2 (Mouse HWND)
Determines the x- and y-coordinates of the mouse (assuming the jaccessinspector tool window is topmost), and then queries the Java application for the accessible object of the HWND underneath the mouse, dumping the output into the jaccessinspector window.
Update with F1 (Mouse Point)
Determines the x- and y-coordinates of the mouse (assuming the jaccessinspector tool window is topmost), and then queries the Java application for the accessible object underneath the cursor, dumping the output into the jaccessinspector window.

JavaEvents Menu

This section describes the JavaEvents menu items.

Track Mouse Events

Registers with the Java application all Java Mouse Entered events, and upon receiving one, queries the object that was entered by the cursor and dumps the output into the jaccessinspector window.

Note: If the mouse is moved quickly, then there may be some delay before the displayed information is updated.

Track Focus Events
Registers with the Java application all Java Focus Gained events, and upon receiving an event, queries the object that received the focus and dumps the output into the jaccessinspector window.
Track Caret Events

Register with the Java application all Java Caret Update events, and upon receiving an event, queries the object in which the caret was updated, and dumps the output into the jaccessinspector window.

Note: Because objects that contain carets are almost by definition objects that are rich text objects, this won't seem as responsive as the other event tracking options. In real use, one would make fewer accessibility calls in Caret Update situations (for example, just get the new letter, word, sentence at the caret location), which would be significantly faster.

Track Menu Selected | Deselected | Cancelled Events
Registers with the Java application all Menu events, and upon receiving an event, queries the object in which the caret was updated, and dumps the output into the jaccessinspector window.
Track Popup Visible | Invisible | Cancelled Events
Registers with the Java application all Popup Menu events, and upon receiving an event, queries the object in which the caret was updated, and dumps the output into the jaccessinspector window.
Track Shutdown Events
Registers with the Java application to receive a Property Changed event when a Java application terminates.

AccessibilityEvents Menu

This section describes the AccessibilityEvents menu items.

Note: The items listed in the AccessibilityEvents menu are the most important for testing applications, especially for assistive technology applications.

Track Name Property Events
Registers with the Java application all Java Property Changed events specifically on accessible objects in which the Name property has changed, and upon receiving an event, dumps the output into the scrolling window, along with information about the property that changed.
Track Description Property Events
Register with the Java application for all Java Property Changed events specifically on accessible objects in which the Description property has changed, and upon receiving an event, dumps the output into the jaccessinspector window, along with information about the property that changed.
Track State Property Events
Register with the Java application all Java Property Changed events specifically on accessible objects in which the State property has changed, and upon receiving an event, dumps the output into the jaccessinspector window, along with information about the property that changed.
Track Value Property Events
Register with the Java application all Java Property Changed events specifically on accessible objects in which the Value property has changed, and upon receiving an event, dumps the output into the scrolling window, along with information about the property that changed.
Track Selection Property Events
Register with the Java application all Java Property Changed events specifically on accessible objects in which the Selection property has changed, and upon receiving an event, dumps the output into the jaccessinspector window, along with information about the property that changed.
Track Text Property Events
Register with the Java application all Java Property Changed events specifically on accessible objects in which the Text property has changed, and upon receiving one event, dump the output into the jaccessinspector window, along with information about the property that changed.
Track Caret Property Events
Register with the Java application all Java Property Changed events specifically on accessible objects in which the Caret property has changed, and upon receiving an event, dumps the output into the jaccessinspector window, along with information about the property that changed.
Track VisibleData Property Events
Register with the Java application all Java Property Changed events specifically on accessible objects in which the VisibleData property has changed, and upon receiving an event, dumps the output into the jaccessinspector window, along with information about the property that changed.
Track Child Property Events
Register with the Java application all Java Property Changed events specifically on accessible objects in which the Child property has changed, and upon receiving an event, dumps the output into the jaccessinspector window, along with information about the property that changed.
Track Active Descendent Property Events
Register with the Java application all Java Property Changed events specifically on accessible objects in which the Active Descendent property has changed, and upon receiving an event, dumps the output into the jaccessinspector window, along with information about the property that changed.
Track Table Model Change Property Events
Register with the Java application all Property Changed events specifically on accessible objects in which the Table Model Change property has changed, and upon receiving an event, dumps the output into the jaccessinspector window, along with information about the property that changed.

Options Menu

This section describes the Options menu items.

Monitor the same events as JAWS
Enables monitoring of only the events also monitored by JAWS.
Monitor All Events
Enables monitoring of all events in the jaccessinspector window.
Reset All Events
Resets the selected Options to the default settings.
Go To Message
Opens the Go To Message dialog that lets you display a logged message by entering its message number.
Clear Message History
Clears the history of logged messages from the jaccessinspector window.