imagej2/fiji Could not initialize class javax.imageio.ImageIO
- Dominant language
- Java
- Stars
- 1.4k
- Forks
- 350
- PR merge metrics
- No merged PRs in 30d
Description
I encountered some problems when developing imagej plugin.
Here is my code:
`ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(imageData);`
`BufferedImage bufferedImage = ImageIO.read(byteArrayInputStream);`
`ImageProcessor imageProcessor = new ij.process.ByteProcessor(bufferedImage);`
`ImagePlus img = new ImagePlus("Loaded Image", imageProcessor);`
When I call it in IDEA, there is no problem. javax.imageio.ImageIO should be part of the java basic library.
But when I package it into a jar package and call it in plugins, an error occurs:
`java.lang.NoClassDefFoundError: Could not initialize class javax.imageio.ImageIO`
This problem has troubled me for a long time. I have tried many methods but couldn't avoid it. Even putting a basic Java package rt.jar in various locations didn't work.
My purpose is just to build ImagePlus through ByteArrayInputStream. My requirement is to build an image from data transmitted through a network stream, while most tutorials are about reading local files.
My environment is as follows:
java.version: 1.8.0_322
IJ.getVersion: 2.16.0/1.54g
IJ.javaVersion: 8
I hope someone can help me solve this problem.
Contributor guide
No contributing guide indexed for this repository
Research direction
Start with the shown ByteArrayInputStream, ImageIO.read, ByteProcessor, and ImagePlus sequence, then reproduce it in the packaged ImageJ plugin environment using the reported Java 8 and ImageJ versions. Investigate the NoClassDefFoundError and compare it with the working IDEA setup; done means constructing an ImagePlus from network-provided image data without the initialization failure.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- computer-vision
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100