FULL PRODUCT VERSION :
java version "1.6.0-rc"
Java(TM) SE Runtime Environment (build 1.6.0-rc-b88)
Java HotSpot(TM) Client VM (build 1.6.0-rc-b88, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows 2000 [Version 5.00.2195]

A DESCRIPTION OF THE PROBLEM :
If you use a class with default access in a @Select query, then it will always return 0 rows, no matter what's in the database. E.g. in:

interface MyQueries extends BaseQuery {
@Select("SELECT * FROM address")
DataSet<Address> getAddresses();
}

If Address has anything but public access then getAddresses will always return 0 rows.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
See test case source code.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Retrieve the rows as usual.
ACTUAL -
JUnit version 4.1
.E.
Time: 10.986
There was 1 failure:
1) rowsExistWithQuery(DataSetTest)
java.lang.AssertionError: Rows found expected:<1> but was:<0>
       at org.junit.Assert.fail(Assert.java:69)
       at org.junit.Assert.failNotEquals(Assert.java:314)
       at org.junit.Assert.assertEquals(Assert.java:94)
       at DataSetTest.rowsExistWithQuery(DataSetTest.java:61)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:589)
       at org.junit.internal.runners.TestMethodRunner.executeMethodBody(TestMethodRunner.java:99)
       at org.junit.internal.runners.TestMethodRunner.runUnprotected(TestMethodRunner.java:81)
       at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
       at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
       at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
       at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:71)
       at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:35)
       at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
       at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
       at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
       at org.junit.internal.runners.CompositeRunner.run(CompositeRunner.java:29)
       at org.junit.runner.JUnitCore.run(JUnitCore.java:121)
       at org.junit.runner.JUnitCore.run(JUnitCore.java:100)
       at org.junit.runner.JUnitCore.run(JUnitCore.java:91)
       at org.junit.runner.JUnitCore.runMain(JUnitCore.java:75)
       at org.junit.runner.JUnitCore.main(JUnitCore.java:42)
       at DataSetTest.main(DataSetTest.java:25)

FAILURES!!!
Tests run: 2, Failures: 1



REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
/* AddressPublic.java (default package) */
class AddressDefault {
       public int num;
       public String addr;
}

public class AddressPublic {
       public int num;
       public String addr;
}


/* DataSetTest.java (default package) */
import java.sql.BaseQuery;
import java.sql.DataSet;
import java.sql.Connection;
import java.sql.Statement;
import java.sql.SQLException;
import java.sql.Select;
import java.sql.DriverManager;
import java.sql.ResultSet;

import org.junit.Test;
import org.junit.Before;
import org.junit.After;
import org.junit.runner.JUnitCore;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.fail;

/**
 * Modified from SimpleApp in JavaDB/Derby example source.
 */
public class DataSetTest
{

private interface MyQueries extends BaseQuery {
@Select("SELECT num, addr FROM address")
DataSet<AddressDefault> getAllUsersDefault();

@Select("SELECT num, addr FROM address")
DataSet<AddressPublic> getAllUsersPublic();
}


   private Connection conn;

   public static void main(String[] args) {
       JUnitCore.main(DataSetTest.class.getName());
   }

   @Before
   public void createDB() throws Exception {
Class.forName("org.apache.derby.jdbc.EmbeddedDriver").newInstance();

conn = DriverManager.getConnection("jdbc:derby:derbyDB;create=true");
conn.setAutoCommit(true);
Statement s = conn.createStatement();
s.execute("create table address(num int, addr varchar(40))");
s.execute("insert into address values (420, 'Enlightment Ln.')");
s.close();
   }

   @After
   public void shutdownDB() throws Exception {
Statement s = conn.createStatement();
s.execute("drop table address");
s.close();
if (conn != null) {
conn.close();
}
try {
DriverManager.getConnection("jdbc:derby:;shutdown=true");
fail("Database did not shutdown.");
} catch (SQLException success) {
}
   }

   @Test
   public void rowsExistWithQueryDefault() throws Exception {
DataSet<AddressDefault> res = null;
try {
MyQueries q = conn.createQueryObject(MyQueries.class);
res = q.getAllUsersDefault();
assertEquals("Rows found", 1, res.size());
assertEquals("Correct num", 420, res.get(0).num);
assertEquals("Correct addr", "Enlightment Ln.", res.get(0).addr);
} finally {
if (res != null) {
res.close();
}
}
   }
   
   @Test
   public void rowsExistWithQueryPublic() throws Exception {
DataSet<AddressPublic> res = null;
try {
MyQueries q = conn.createQueryObject(MyQueries.class);
res = q.getAllUsersPublic();
assertEquals("Rows found", 1, res.size());
assertEquals("Correct num", 420, res.get(0).num);
assertEquals("Correct addr", "Enlightment Ln.", res.get(0).addr);
} finally {
if (res != null) {
res.close();
}
}
   }

   @Test
   public void rowsExistWithStatement() throws Exception {
Statement s = conn.createStatement();
ResultSet rs = s.executeQuery("SELECT num, addr FROM address");
assertTrue("Rows found", rs.next());
assertEquals("Correct num", 420, rs.getInt(1));
assertEquals("Correct addr", "Enlightment Ln.", rs.getString(2));
assertFalse("Only one row", rs.next());
rs.close();
s.close();
   }
}

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

CUSTOMER SUBMITTED WORKAROUND :
Make the class public access.