Adding a JAR to an Eclipse Java library

Question

How do you add a JAR file to an already existing Java library in Eclipse? Note that this is not a user library.

That is, if you look at the Java Build Path for a Java project and click on the Libraries tab, you will see the list of libraries used by the project. If you expand a given library, you will see a list of JAR files included in that library. I want to add an additional JAR file to one of these libraries.

I am using Version 3.4.0 of Eclipse.

Answer 1

In eclipse Galileo :

• Open the project's properties
• Select Java Build Path
• Select Libraries tab

From there you can Add External Jars

Answer 2

In Eclipse Ganymede (3.4.0):

1. Select the library and click "Edit" (left side of the window)
2. Click "User Libraries"
3. Select the library again and click "Add JARs"