https://github.com/yegor256/jhome

Get JAVA_HOME from Java, even if it's not set
https://github.com/yegor256/jhome

java java-home

Last synced: 11 months ago
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Get JAVA_HOME from Java, even if it's not set

• Host: GitHub
• URL: https://github.com/yegor256/jhome
• Owner: yegor256
• License: mit
• Created: 2023-11-20T14:15:37.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2025-03-17T15:13:46.000Z (over 1 year ago)
• Last Synced: 2025-03-22T21:06:35.941Z (over 1 year ago)
• Topics: java, java-home
• Language: Java
• Homepage:
• Size: 168 KB
• Stars: 5
• Watchers: 3
• Forks: 1
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

          
# Finds Absolute Path of JAVA_HOME in Runtime

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In your Java application you may want to run another Java application.

In order to do this, you need to know where is the `bin/java` executable.

It's in the `JAVA_HOME` (environment variable), which is not always set.

Instead of looking for this place manually, just use this small one-class

library.

First, you add this to your `pom.xml`:

```xml

  com.yegor256

  jhome

  0.0.5

```

Then, you use it like this:

```java

import com.yegor256.jhome;

Path p = new Jhome().path("bin/java");

```

The result is the location of `bin/java` inside `JAVA_HOME`.

Also, you can use `java()` and `javac()` methods in order to get the full path

to `java` and `javac` executables respectively:

```java

import com.yegor256.jhome;

Path java = new Jhome().java();

Path javac = new Jhome().javac();

```

## How to Contribute

Fork repository, make changes, send us

a [pull request](https://www.yegor256.com/2014/04/15/github-guidelines.html).

We will review your changes and apply them to the `master` branch shortly,

provided they don't violate our quality standards. To avoid frustration,

before sending us your pull request please run full Maven build:

```bash

mvn clean install -Pqulice

```

You will need Maven 3.3+ and Java 8+.