How to Fix Imported JAR Images Not Displaying from Eclipse?

Problem: Imported JAR Images Not Displaying from Eclipse

This issue occurs when images fail to load upon running a JAR file exported from Eclipse. Despite being included in the exported JAR file, images do not appear. This article aims to provide comprehensive solutions for this problem.

Example 1: Resources in src Folder

1. Ensure that the images are located within the "resources" package.
2. Code: Use URL url = Main.class.getResource("/resources/header.jpg"); to retrieve the image URL.
3. Export the project as a Runnable JAR file, selecting the appropriate launch configuration.
4. Run the JAR file to confirm image display.

Example 2: Resources Outside of src Folder

1. Ensure that the resources folder is located within the project structure.
2. Add the resources folder to the build path by navigating to Build Path > Configure Build Path > Sources > Add Folder.
3. Modify the code to remove the "resources" prefix from the image path.
4. Follow the same export and launch configuration steps as in Example 1.

Launch Configuration Setup

1. Create a run configuration by navigating to Run/Debug Settings > New > Java Application.
2. Specify the main class (e.g., com.stackoverflow.test.Main) and project.
3. Select the run configuration during the JAR export process to ensure proper launching.

Expected Results

1. The exported JAR file should contain the resources folder and its contents.
2. The manifest file should include entries for Rsrc-Main-Class, Rsrc-Class-Path, and Main-Class.

By following these solutions, images should display correctly when running the exported JAR file.

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