How to check the required libraries?

Question

I am developing a web application with a lot of libraries like Spring, Apache CXF, Hibernate, Apache Axis, Apache Common, etc. Each of these frameworks has many * .jar libraries.

For development, I just take all the delivered libraries and add them to my classpath.

For deployment, not all of these libraries are necessary, so is there a quick way to learn all the necessary libraries (* .jar) that are used by my source code?

Answer 1

If you move your project to using Maven, this will be simplified:

mvn dependency:analyze 
mvn dependency:tree

Answer 2

For your example, Maven + IDE + nice dependency diagrams can help highlight.

. : , , " " - , .

Answer 3

JDepend Java Java. JDepend , .

Answer 4

, , , Eclipse:

• .
• # 2 .
• , , . .
• Control-Shift-T . , , № 1.
• , , № 2, 3 4 , .

, , jar . :

• , . , .

• Launch the application and see if you have any ClassNotFoundExceptions. If you do, use Control-Shift-T to find out which jar this class comes from and add it to your classpath. Repeat until your project is launched without any ClassNotFoundExceptions.

The problem with # 2 is that you really don’t know that you have resolved all the dependencies, since you cannot imitate all the possible execution paths that your project might need.