A DESCRIPTION OF THE REQUEST :
Currently, interfaces SQLInput, SQLOutput provide plenty accessors for distinct type, and one general read/writeObject().
The latter could be generified to cover all other non-primitive types, with the effect pushing the root of a possible ClassCastException to the call site layer.
The non-primitive distinct ones could be deprecated.

JUSTIFICATION :
- general convenience
- save the additional external cast for readObject()
- in the javax.sql.rowset.serial implementation, the dictinct accessors could internally cause a ClassCastException, which would be unfathomable for users
- less code to maintain, especially for future extensions


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
E.G.:
boolean b = sqlInput.readBoolean();
Boolean b = sqlInput.readObject();
String s = sqlInput.readObject();
Blob b = sqlInput.readObject();
...

ACTUAL -
E.G.:
boolean b = sqlInput.readBoolean();
Boolean b = (Boolean)sqlInput.readObject();
String s = sqlInput.readString();
Blob b = sqlInput.readBlob();
...


---------- BEGIN SOURCE ----------
proposed source changes for javax.sql.rowset.serial.SQLInputImpl

    private int idx = 0; // init with 0 instead -1

    private Object attribs[]; // rename attrib to attribs

    public boolean readBoolean() throws SQLException {
        Boolean attrib = readObject(); // replace old (Boolean)getNextAttribute()
        return (attrib == null) ? false : attrib.booleanValue();
    }

    public <T> T readObject() throws SQLException {
        if (idx >= attribs.length) {
            throw new SQLException( " SQLInputImpl exception: Invalid read " +
                                    " position " );
        }
        T attrib = (T)attribs[idx++];
        lastValueWasNull = attrib == null;
        if (attrib instanceof Struct) {
            ... // maybe move to extra method to enhance possibility
            ... // for JIT to compile + inline the main path
            ...
        }
        return attrib;
    }


---------- END SOURCE ----------