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Update Java¶

Download the latest version of the Java Development Kit (JDK) as a self-extracting binary file from [http://java.sun.com/javase/downloads/].

Make it executable and install it into /usr/java/jdk-XXX.
```
  # chmod u+x jdk-XXX.bin
  # ./jdk-XXX.bin
```

Move it to the the same folder with all other Java versions:
```
  # mv /usr/java/jdk-XXX /usr/lib/jvm
```

Install the new version within the alternatives system:

  # update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk-XXX/jre/bin/java 300

Select the new version as the default using:
```
  # alternatives --config java
```

Check the version of the default java installation:
```
  # java -version
```