# Size of the first TLS record (the ClientHello) each JDK sends

=== JDK 26
java.version           = 26.0.2.1
record type            = 0x16 (0x16 = handshake)
ClientHello record     = 417 bytes (+5 byte record header)
fits one TCP segment   = yes   (1460-byte MSS on a 1500-byte MTU)

=== JDK 27
java.version           = 27
record type            = 0x16 (0x16 = handshake)
ClientHello record     = 1573 bytes (+5 byte record header)
fits one TCP segment   = NO   (1460-byte MSS on a 1500-byte MTU)

=== JDK 27 with -Djdk.tls.namedGroups=x25519,secp256r1 (post-quantum group removed)
java.version           = 27
record type            = 0x16 (0x16 = handshake)
ClientHello record     = 408 bytes (+5 byte record header)
fits one TCP segment   = yes   (1460-byte MSS on a 1500-byte MTU)