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Eclipse Java Development User Guide
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Choosing a JRE for a launch configuration

Instead of using the default JRE for running and debugging all Java Application launch configurations, you can specifically assign a JRE for launching an individual configuration.

  1. With a Java Application configuration selected in the Opens the Launch Configuration dialog Launch Configuration Dialog , select the JRE tab.
  2. In the list of available JREs, select the JRE you want to use to launch this configuration and click Apply, then Run or Debug.

Note: Changing the JRE used for running does not affect the way Java source is compiled. You can adjust the build path to compile against custom libraries. 

Related concepts

Java development tools (JDT)

Related tasks

Working with JREs
Adding a new JRE definition
Deleting a JRE definition
Choosing a default JRE

Related reference

Installed JREs preference page

  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire