public static Version resolveVersion(MinecraftDirectory minecraftDir, String version) throws IOException {
		Objects.requireNonNull(minecraftDir);
		Objects.requireNonNull(version);

		if (doesVersionExist(minecraftDir, version)) {
			try {
				return getVersionParser().parseVersion(resolveVersionHierarchy(version, minecraftDir), PlatformDescription.current());
			} catch (JSONException e) {
				throw new IOException("Couldn't parse version json: " + version, e);
			}
		} else {
			return null;
		}
	}
public static Version resolveVersion ( MinecraftDirectory minecraftDir , String version ) throws IOException { Objects . requireNonNull ( minecraftDir ) ; Objects . requireNonNull ( version ) ; if ( doesVersionExist ( minecraftDir , version ) ) { try { return getVersionParser ( ) . parseVersion ( resolveVersionHierarchy ( version , minecraftDir ) , PlatformDescription . current ( ) ) ; } catch ( JSONException e ) { throw new IOException ( "Couldn't parse version json: " + version , e ) ; } } else { return null ; } }
Resolves the version.

@param minecraftDir the minecraft directory
@param version the version name
@return the version object, or null if the version does not exist
@throws IOException if an I/O error has occurred during resolving version
@throws NullPointerException if
<code>minecraftDir==null || version==null</code>