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18.4.4. Specifying the Correct Java Type When Passing Values from Virtuoso/PL
Each method parameter in the
java_new_object()
/java_call_method()
can be either the value itself or a two-element vector. When it is a
two-element vector it's first element is the JNI type signature string,
e.g.: for integer - I, for array of integers - [I], for
java.lang.String - Ljava/lang/String. The signature is important because
the Java VM JNI API needs it in order to find the appropriate
constructor/method/property.