Building Native ImageBLOCK

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

The instruction file, verbatim from the audited commit — this is the text the model reads, and the surface the audit's instruction layer examines. Quoted here so you can judge it without cloning anything.

---
name: building-native-image
description: Build and troubleshoot GraalVM Native Image applications. Use this skill to build Java applications with GraalVM Native Image, configure CLI options, or resolve build or runtime issues.
---

# Building Native Image

## Prerequisites
- Set `JAVA_HOME` to a GraalVM distribution if your Java program uses the Native Image SDK. If you do not know the path, ask the user to provide it.


## Build and Run
1. Compile your Java file with `javac`.
2. Build the Native Image:
	```bash
	$JAVA_HOME/bin/native-image <app-name>
	```
3. Run the resulting executable:
	```bash
	./app-name
	```
4. If Native Image cannot find your class file, set the classpath explicitly with the `-cp` option.


## Troubleshooting

### Reachability Metadata
If you encounter runtime errors related to reflection, JNI, resources, serialization, or dynamic proxies, consult [`references/reachability-metadata.md`](references/reachability-metadata.md) before attempting a fix. Use this reference for:
- `NoClassDefFoundError` or `MissingReflectionRegistrationError`
- `MissingJNIRegistrationError`
- `MissingResourceException` (missing resource bundle)
- Any user question about reflection, JNI, proxies, resources, resource bundles, or serialization in Native Image.


## Native Image Options
To configure classpath, optimization level, output name, platform target, monitoring, or other CLI flags, see [`references/native-image-options.md`](references/native-image-options.md).


## Reference Files
| Topic | File |
|-------|------|
| Native Image CLI options | [references/native-image-options.md](references/native-image-options.md) |
| Missing reachability metadata | [references/reachability-metadata.md](references/reachability-metadata.md) |

BLOCKgrade D · trust 69/100 Do not install this without reading the findings. The audit found something that could harm you or your machine.

What the source does

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none-observed

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none-observed

Shell

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Dependencies

pinned

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Findings (5)

# Building Native Image

web-image/mx.web-image/eclipse-settings

Gates applied: no_behavioural_pass.