Break when exception is thrown

java

exception-handling

debugging

eclipse

byAlex Kataev·Dec 15, 2024

Easily trigger a break on exceptions in Eclipse by following these steps:

Get into the Breakpoints view.
Locate and click the J! icon to reveal the configuration for Java Exception Breakpoints.
Add a breakpoint tailored to a specific exception, such as NullPointerException. Make sure both Caught and Uncaught are selected.

Once done, your debugger will pause execution each time the pre-selected exception appears:

try {
    // Code as slippery as a banana peel...
} catch (Exception e) {
    // Whoops! Let's stop here for some deep thoughts 🤔
}

Kindly ensure you toggle your program to run in debug mode for the breakpoints to function effectively.

Exception handling: The nitty-gritty

Master the art of debugging in Eclipse by understanding these key operations:

Conditional Breaking: To prevent unnecessary breaks, deploy conditional breakpoints that only trigger when certain conditions hold true.
Exception Families: Group related exceptions by breaking on their base exceptions. It's like booking a family suite instead of individual hotel rooms.
Disable After Hit: Use Eclipse's hit count feature to automatically disable breakpoints after a set number of hits. It's like muting a chat group after getting all the necessary gossip!

Unleash the full debugging potential of Eclipse through these advanced configuration settings:

Targeted Breaking: You can put a specific custom exception under the spotlight, breaking only when it shows up on stage.
Exception Filters: If you're lost in the exception jungle, use exception filters to break only when code issues from specific hotspots like a certain package or class.

As a Visual Studio user transitioning to Eclipse, here's a comparative breakdown to ease you in:

Common Ground: Both Eclipse and Visual Studio support breaking on exceptions.
Distinguishing Factors: Eclipse requires active configuration for setting breakpoints, while Visual Studio offers a more plug-and-play approach.
Navigating in Eclipse: To feel at home in Eclipse, familiarize yourself with the Breakpoints view and remember to manually set breakpoints for catching exceptions.

Boost your debugging efficiency in Eclipse with these tips up your sleeve:

Stick to Your Breakpoints: Adjust Eclipse's workspace save settings to keep your breakpoints intact between sessions.
Breakpoints on Demand: Create breakpoint groups, handy for enabling or disabling breakpoints in a click.

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