public void func_22091_b()
{
try
{
var file = new File(field_22099_b, "session.lock");
var datainputstream = new DataInputStream(new FileInputStream(file));
try
{
if (datainputstream.readLong() != field_22100_d)
{
throw new MinecraftException("The save is being accessed from another location, aborting");
}
}
finally
{
datainputstream.close();
}
}
catch (IOException)
{
throw new MinecraftException("Failed to check session lock, aborting");
}
}