IntelliJ Idea (debugging) conditional breakpoint dependent on other breakpoints

Question

I want to set a debug breakpoint in IntelliJ Idea that is only active, if another previous breakpoint was activated. For example i have a breakpoint B1 on line 10, and another breakpoint B2 on line 20. Even if B2s condition is true, the debugger should only halt if B1s condition was true before B2s.

Is something like this possible in Idea?

Update:

Currently i'm working with this workaround:

set the two breakpoints
disable breakpoint #2
start the debugger, wait until breakpoint #1 is active
activate breakpoint #2

I hope there is a cleaner way to do this :)

[Other advanced Breakpoint Settings in IDEA](https://nirlaor.wordpress.com/2011/02/10/advanced-breakpoint-settings-in-idea/) — Grigory Kislin, May 05 '17 at 10:17

maba · Accepted Answer · 2013-05-17T11:50:41.513

38

You can do that in the View Breakpoints... view:

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In your case you will first have to set a conditional breakpoint on B1 so that when it is hit then and only then B2 will be triggered.

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edited May 17 '13 at 11:50

answered May 17 '13 at 11:37

maba

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I overlooked this menu entry the whole time, sometimes i did'nt see the wood for the trees :) – klingt.net May 17 '13 at 11:44
too bad they have buried this menu and made it hard to find. Favorites > Breakpoints > Right + Click on Breakpoint > Edit Breakpoint > More – ferics2 Jul 29 '14 at 14:09
4

FWIW, You can get to it in IntelliJ 2017.1 by right-clicking a breakpoint and then clicking the 'more' on the bottom left of the popup. – Geoffrey Wiseman Mar 29 '17 at 16:44
You can assign a shortcut for this or just use the default Ctrl+Shift+F8 to see all your bps in one shot. – killjoy Jun 19 '17 at 14:41
This is awesome. Did not even know this were a _thing_. – WestCoastProjects Feb 09 '19 at 23:48

score 0 · Answer 2 · answered Apr 10 '20 at 07:07

An alternate programmatic approach to debug specific classes when some condition in some class is met.

/*
 * Breakpoint helper, stops based on a shared state
 *  STOP variable
 *
 * Everything in here should be chainable
 *  to allow adding to breakpoints
 */
public final class DEBUG {

/*
 * global state controlling if we should
 *   stop anywhere
 */
public static volatile boolean STOP = false;

public static volatile List<Object> REFS = new ArrayList<>();

/**
 * add object references when conditions meet
 * for debugging later
 */
public static boolean ADD_REF(Object obj) {
    return ADD_REF(obj, () -> true);
}

public static boolean ADD_REF(Object obj, Supplier<Boolean> condition) {
    if (condition.get()) {
        REFS.add(obj);
        return true;
    }
    return false;
}

/*
 * STOPs on meeting condition
 *  also RETURNS if we should STOP
 *
 * This should be set when a main condition is satisfied
 *      and can be done as part of a breakpoint as well
 */
public static boolean STOP(Supplier<Boolean> condition) {
    if (condition.get()) {
        STOP = true;
        return true;
    }
    return false;
}

public static boolean STOP() {
    return STOP(() -> true);
}

Where you want a condition to set the breakpoint

Where you want to stop based on a condition

IntelliJ Idea (debugging) conditional breakpoint dependent on other breakpoints

2 Answers2

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