debugger for emacs to step through java source code

Question

GNU Emacs 25.1.1
Fedora release 24 (Twenty Four)
Gradle 2.14.1

I have been doing a lot of java applications lately and want to know what is the best debugger for stepping through java applications.

I would like to debug my apps from inside emacs environment by setting breakpoints and inspecting variables, etc.

I am using gradle as my build tool for compiling the application.

I have no idea how to set this up, if someone could explain how to do this.

Many thanks for any suggestions.

“What is the best FOO” is usually a request for an opinion; and opinion-asking questions are not a good fit for StackOverflow. Can you please re-write the question so that it asks a question with exactly one objectively correct answer. — bignose
– bignose, Commented Sep 12, 2016 at 5:23

vmonteco · Accepted Answer · 2016-09-21 17:32:57Z

7

+150

You could use jdb (it comes with GUD and you should have nothing to install).

Just enter M-x jdb ENT

and enter the command you would like to launch jdb with (For example jdb HelloWorld) and run/debug like in a regular jdb session.

edited Sep 21, 2016 at 17:32

answered Sep 20, 2016 at 23:41

vmonteco

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1 Comment

Sridhar Sarnobat Over a year ago

I'm having a hell of a time trying to install this on XEmacs 2.1

songyuanyao · Accepted Answer · 2016-09-22 07:13:29Z

6

I'm using JDEE (Java Development Environment for Emacs) to develop Java in Emacs, you might want to try with it. It is an add on sotware package for Emacs that assists in the development of software in the Java Programming Language, and provides many Emacs commands that help with programming of Java, including debugging.

The JDE provides two options for debugging Java applications.

An Emacs interface to jdb, the command-line debugger that comes with the JDK. See Debugging with jdb for more information.

JDEbug, a Java debugger developed specifically for use with the JDE. See JDEbug User's Guide for more information.

JDEbug provides more debugging features.

Screenshots of JDEbug

edited Sep 22, 2016 at 7:13

answered Sep 22, 2016 at 0:45

songyuanyao

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