int getMajor()

in src/it/multirelease-patterns/singleproject-runtime/verify.groovy [69:82]

• 13 lines of code
• 2 McCabe index (conditional complexity)

int getMajor(InputStream is)
{
  def dis = new DataInputStream(is)
  final String firstFourBytes = Integer.toHexString(dis.readUnsignedShort()) + Integer.toHexString(dis.readUnsignedShort())
  if (!firstFourBytes.equalsIgnoreCase("cafebabe"))
  {
    throw new IllegalArgumentException(dataSourceName + " is NOT a Java .class file.")
  }
  final int minorVersion = dis.readUnsignedShort()
  final int majorVersion = dis.readUnsignedShort()

  is.close();
  return majorVersion;
}