The java::throw command throws a Java exception. throwableObj must be a valid Java object handle and must be an instance of java.lang.Throwable. Internally, the java::throw command sets the errorCode global variable to a list whose first element is the string "JAVA" and whose second element is throwableObj. Then, it generates a Tcl error to cause the script to return abruptly. The effect of calling the java::throw command is exactly the same as calling a Java method which throws a Java exception.
java::throw [java::new ClassNotFoundException "bad class foo"]
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