entry.responseHeaders = readStringStringMap((ObjectInputStream) is); is problem entry.responseHeaders = readStringStringMap(is); fix reason : java.lang.ClassCastException: java.io.FileInputStream cannot be cast to java.io.ObjectInputStream
entry.responseHeaders = readStringStringMap((ObjectInputStream) is);
is problem
entry.responseHeaders = readStringStringMap(is);
fix
reason : java.lang.ClassCastException: java.io.FileInputStream cannot be cast to java.io.ObjectInputStream