Any command that returns a Java object or primitive Java type will
automatically convert the object or primitive type to a corresponding
Tcl value. This conversion can be skipped by using the -noconvert
option. This applies to the java::call, java::field,
java::prop, javaObj, and javaArrayObj commands. The
java::new command does not do any conversion because it
makes no sense to convert a Java object that was just allocated.
If the returned value is a primitive Java type it will be converted
to an integer or floating-point Tcl value. If the result is a String object,
then the Java string object is converted into a Tcl string. For all other
object types, a Java object handle is created and returned. If the
-noconvert option is specified a Java object handle is always returned.
Tcl values are also be converted to Java objects and primitive Java types
when they are given as arguments to Java commands. The default conversion
for all Tcl values is a java.lang.String object. To override this default a
full signature must be provided for Java method invocations.
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