OS registry access for java (reg4j)

A module to access OS registry.

Currently implemented for windows only.

Windows

Add

try {
    new WindowsRegistry().add("HKEY_CURRENT_USER\\Environment", "Test", new WindowsRegistryValue(REG_DWORD, "0x1"));
} catch (RegistryException e) {
    throw new IllegalStateException("Can't add registry entry", e);
}

Get

try {
    RegistryValue value = new WindowsRegistry().get("HKEY_CURRENT_USER\\Environment", "Test");
} catch (RegistryException e) {
    throw new IllegalStateException("Can't add registry entry", e);
}

Delete

try {
    new WindowsRegistry().delete("HKEY_CURRENT_USER\\Environment", "Test");
} catch (RegistryException e) {
    throw new IllegalStateException("Can't delete registry entry", e);
}