java调用oracle函数返回自定义类型

包定义如下：
-------------------------------------------------------
---------------------定义包头--------------------------
-------------------------------------------------------
create or replace package pck_test is
  type cursorref is ref cursor;   -----定义游标
  type temp_record is record      -----定义游标输出记录类型
  (
    itemId mini_t_item_dict.item_id%TYPE,
    describe mini_t_item_dict.describe%TYPE
  );
  type statistic_record is record -----定义输出记录类型，保存一项结果
  (
     itemId mini_t_item_dict.item_id%TYPE,
     describe mini_t_item_dict.describe%TYPE,
     recordCount number
  );
  type statistic_record_array is TABLE OF statistic_record;-----定义记录型数组
  function getStatistics (itemid mini_t_item_dict.item_id%TYPE) return statistic_record_array;       --------定义函数
end pck_test;
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---------------------定义包体--------------------------
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create or replace package body pck_test is
function getStatistics
    (itemid mini_t_item_dict.item_id%TYPE)
    return statistic_record_array
    is
        vs_temp_record temp_record;
        vs_statistic_record statistic_record;
        vs_statistic_record_array statistic_record_array;
        vs_cursorref cursorref;
        --vs_recordCount number;
    begin
        open vs_cursorref for
            select t.item_id, describe from mini_t_item_dict t where t.parent_id = itemId;
        fetch vs_cursorref into vs_temp_record;
        while vs_cursorref%found loop
            vs_statistic_record_array.extend;
            vs_statistic_record.itemId := vs_temp_record.itemId;
            vs_statistic_record.describe := vs_temp_record.describe;
            select count(*) into vs_statistic_record.recordCount
                from mini_t_adverse_form1 f
                where f.item_id = vs_statistic_record.itemId;
            vs_statistic_record_array(vs_statistic_record_array.count) := vs_statistic_record;
            fetch vs_cursorref into vs_temp_record;
        end loop;
        return vs_statistic_record_array;
        close vs_cursorref;
    end;
end pck_test;在java中调用：
public List<Statistics> statisticsCount(int pid){
try {
CallableStatement cstm = this.getConnection().prepareCall("{?=call pck_test.getstatistics(?)}");
cstm.setInt(2, pid);
cstm.registerOutParameter(1,OracleTypes.ARRAY,"pck_test.statistic_record_array");//这出错了，异常在下面
cstm.execute();
List<Statistics> stalit = new ArrayList<Statistics>();
stalit = (List<Statistics>) cstm.getObject(1);
return stalit;
} catch (CannotGetJdbcConnectionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}异常：java.sql.SQLException: 无效的名称模式: pck_test.statistic_record_array
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:111)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:145)
at oracle.jdbc.oracore.OracleTypeADT.initMetadata(OracleTypeADT.java:462)
at oracle.jdbc.oracore.OracleTypeADT.init(OracleTypeADT.java:361)
at oracle.sql.ArrayDescriptor.initPickler(ArrayDescriptor.java:1755)
at oracle.sql.ArrayDescriptor.<init>(ArrayDescriptor.java:271)
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:195)
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:164)
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:149)
at oracle.sql.ArrayDescriptor.createDescriptor(ArrayDescriptor.java:114)
at oracle.jdbc.driver.NamedTypeAccessor.otypeFromName(NamedTypeAccessor.java:70)
at oracle.jdbc.driver.TypeAccessor.initMetadata(TypeAccessor.java:78)
at oracle.jdbc.driver.T4CCallableStatement.allocateAccessor(T4CCallableStatement.java:626)
at oracle.jdbc.driver.OracleCallableStatement.registerOutParameterInternal(OracleCallableStatement.java:133)
at oracle.jdbc.driver.OracleCallableStatement.registerOutParameter(OracleCallableStatement.java:178)
at org.apache.commons.dbcp.DelegatingCallableStatement.registerOutParameter(DelegatingCallableStatement.java:173)
at minimax.tim.form.save.dao.impl.SaveFormDaoImpl.statisticsCount(SaveFormDaoImpl.java:383)
at minimax.tim.test.UserTest.testForm1(UserTest.java:49)
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:597)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
求大侠指教，谢谢！！！