# Ant

You can change the following preferences on the Ant preference page.

Option | Description | Default
--- | --- | ---
Names | Configures the buildfiles that Ant's "-find" emulation searches for. | build.xml
Separate JRE Timeout | The time in milliseconds to wait for communication with the Java virtual machine when running an Ant build in a separate Java runtime environment. | 20000
Documentation URL | Enables you to browse for the applicable documentation URL. | http://ant.apache.org/manual
Always run new Ant configurations in the same JRE as the workspace | Allows you to automatically always have all new Ant launch configurations set to run in the same JRE as the workspace. | Off
Warn when tools.jar is not on the classpath | Displays a warning when tools.jar is not on the classpath. | On
Show error dialog when Ant build fails | Displays an error message when the Ant build fails. | On
Create problem markers from `javac` results | Create warning and error markers from the build results of an Ant `javac` task. Marker creation requires that a console is allocated for the build and that the `listfiles` attribute of the `javac` task be set to true. | Off
Ant Color Options | Configures the colors of the Ant build output. | Varies by Ant output

### Related concepts

Ant support

### Related reference

Ant runtime preferences
Ant editor preferences
Ant formatter preferences
Ant templates preferences