Program: 68402
Project: 68402
Buggy source:
public void test(){
  ReadAllQuery query=new ReadAllQuery();
  if (configuration != null) {
    ExpressionBuilder emp=new ExpressionBuilder();
    Expression exp=emp.get("String_Node_Str").greaterThan(50000);
    query.setSelectionCriteria(exp);
    query.conformResultsInUnitOfWork();
  }
  ScrollableCursor cursor=null;
  try {
    query.setReferenceClass(Employee.class);
    query.useScrollableCursor(2);
    cursor=(ScrollableCursor)getSession().executeQuery(query);
    try {
      boolean isFirst=cursor.first();
      if (!cursor.isFirst() || !isFirst) {
        navigationError="String_Node_Str";
      }
      Object second=cursor.next();
      Object first=cursor.previous();
      if (first.equals(second)) {
        navigationError="String_Node_Str";
      }
      if (!second.equals(cursor.next())) {
        navigationError="String_Node_Str";
      }
      boolean isRelative=cursor.relative(1);
      if (!isRelative || !second.equals(cursor.previous())) {
        navigationError="String_Node_Str";
      }
      boolean isAbsolute=cursor.absolute(1);
      if (!second.equals(cursor.next())) {
        navigationError="String_Node_Str";
      }
      cursor.beforeFirst();
      if (!cursor.isBeforeFirst()) {
        navigationError="String_Node_Str";
      }
      if (!first.equals(cursor.next())) {
        navigationError="String_Node_Str";
      }
      boolean isLast=cursor.last();
      if (!isLast || !cursor.isLast()) {
        navigationError="String_Node_Str";
      }
      cursor.afterLast();
      if (!cursor.isAfterLast()) {
        navigationError="String_Node_Str";
      }
      Object last=cursor.previous();
      int size=cursor.size();
      cursor.relative(size);
      Object lastBySize=cursor.previous();
      if (!last.equals(lastBySize)) {
        navigationError="String_Node_Str";
      }
    }
 catch (    org.eclipse.persistence.exceptions.QueryException ex) {
      caughtException=ex;
    }
  }
  finally {
    if (cursor != null) {
      cursor.close();
    }
  }
}

Fixed version (ground truth):
public void test(){
  ReadAllQuery query=new ReadAllQuery();
  if (configuration != null) {
    ExpressionBuilder emp=new ExpressionBuilder();
    Expression exp=emp.get("String_Node_Str").greaterThan(50000);
    query.setSelectionCriteria(exp);
    query.conformResultsInUnitOfWork();
  }
  ScrollableCursor cursor=null;
  try {
    query.setReferenceClass(Employee.class);
    if (TYPE_SCROLL_INSENSITIVE_isSupported && CONCUR_UPDATABLE_isSupported) {
      query.useScrollableCursor(2);
    }
 else {
      ScrollableCursorPolicy policy=new ScrollableCursorPolicy();
      if (!TYPE_SCROLL_INSENSITIVE_isSupported) {
        policy.setResultSetType(ScrollableCursorPolicy.TYPE_SCROLL_SENSITIVE);
      }
      if (!CONCUR_UPDATABLE_isSupported) {
        policy.setResultSetConcurrency(ScrollableCursorPolicy.CONCUR_READ_ONLY);
      }
      policy.setPageSize(2);
      query.useScrollableCursor(policy);
    }
    cursor=(ScrollableCursor)getSession().executeQuery(query);
    try {
      boolean isFirst=cursor.first();
      if (!cursor.isFirst() || !isFirst) {
        navigationError="String_Node_Str";
      }
      Object second=cursor.next();
      Object first=cursor.previous();
      if (first.equals(second)) {
        navigationError="String_Node_Str";
      }
      if (!second.equals(cursor.next())) {
        navigationError="String_Node_Str";
      }
      boolean isRelative=cursor.relative(1);
      if (!isRelative || !second.equals(cursor.previous())) {
        navigationError="String_Node_Str";
      }
      boolean isAbsolute=cursor.absolute(1);
      if (!second.equals(cursor.next())) {
        navigationError="String_Node_Str";
      }
      cursor.beforeFirst();
      if (!cursor.isBeforeFirst()) {
        navigationError="String_Node_Str";
      }
      if (!first.equals(cursor.next())) {
        navigationError="String_Node_Str";
      }
      boolean isLast=cursor.last();
      if (!isLast || !cursor.isLast()) {
        navigationError="String_Node_Str";
      }
      cursor.afterLast();
      if (!cursor.isAfterLast()) {
        navigationError="String_Node_Str";
      }
      Object last=cursor.previous();
      int size=cursor.size();
      cursor.relative(size);
      Object lastBySize=cursor.previous();
      if (!last.equals(lastBySize)) {
        navigationError="String_Node_Str";
      }
    }
 catch (    org.eclipse.persistence.exceptions.QueryException ex) {
      caughtException=ex;
    }
  }
  finally {
    if (cursor != null) {
      cursor.close();
    }
  }
}