maxTextMessageSize property
The largest text message a session receives, in UTF-8 bytes; 8 KB
by default (Tomcat's maxTextMessageBufferSize, which Spring's
StandardWebSocketClient gets), -1 for no limit. A larger one is
not read, and the session is closed with 1009 (message too big).
Tomcat counts characters, so text outside ASCII reaches this limit
sooner than Tomcat's.
Implementation
final int maxTextMessageSize;