Update javadoc for the fun connect string parameter #14615

Job	Run time
Windows (JDK 17)	18m 10s
Linux (JDK 8, oldest Guava, America/New_York Timezone)	11m 14s
Windows (JDK 8)	17m 17s
Linux (JDK 11, Pacific/Chatham Timezone)	10m 57s
Linux (JDK 8, latest Guava, America/New_York Timezone)	12m 27s
Windows (JDK 21)	17m 54s
Linux (JDK 21)	10m 20s
Linux (JDK 17)	11m 10s
CheckerFramework (JDK 11)	13m 27s
ErrorProne (JDK 11, latest Guava)	6m 22s
CheckerFramework (JDK 11, oldest Guava)	13m 29s
macOS (JDK 21)	47m 22s
Linux (JDK 23)	12m 29s
Linux (JDK 11, Avatica main)	16m 51s
Druid Tests	9m 7s
Linux (JDK 8) Slow Tests	0s
	3h 48m 36s

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