# Default Launchers Preferences

The following preferences can be set using the Run/Debug > Launching > Default Launchers preference page.

The Default Launchers preference allows you to select what launch tooling is to be used if more than one kind of tooling exists for the same thing, for example, consider using two profilers at the same time for Java programs. For the most part, this page remains disabled, as concurrent overlapping tooling is very rare, but in the event there is overlap, the page will enable and present the user with the launch types that conflict and what modes they conflict on.

The following image shows the page with conflicting tooling for Java types in the run, debug and Alternate2 modes. In this example a preferred launcher can be selected independently for each of the conflicting modes.

Debugger
Java perspectives
Java views
Local debugging
Remote debugging

Launching a Java program
Running and debugging

Installed JREs Preferences
Java Debug Preferences
Launch Configurations Preferences
Launching Preferences
Run/Debug Preferences