Root object in Object Stream in Encrypted file

I cannot find anywhere in the PDF Spec a prohibition on including the Root object in an Object Stream in a non-linearized encrypted file, but Acrobat products appear to assume such a restriction.
Encrypted files where the Root obj is in an Object Stream do not open with Acrobat 7, 8 or Reader 9, but do open with GhostView/Ghostscript, Foxit, and Adobe Digital Editions.
If the file is not encrypted there is no problem with the Root object appearing in an Object Stream, and if the Root object is a 'normal' encrypted object there is also no problem.
Anyone any ideas?
Matthew Fitzgerald

Hey praveen,
If you dont use ehp1, there is no any transaction to create root object. you can fallow this [wiki|http://wiki.sdn.sap.com/wiki/display/CRM/CreateaZBOLObjectPart1] page.
Regards,
Zafer,

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My program is supposed to be a Driving instructor program that allows someone to enter a Name and Lesson Number, and it will pull up the Date, and Comments that the lesson took place. The information is saved in a file with the person's name, and saved as an array. We are required to use Object Streams for the file i/o. The only part of the program that I don't have working is the actual file i/o. The large commented section that I have in the datamanager class is the notes from the professor on the board and I haven't removed them yet. There are 4 classes for this file.
The main class that creates the program and calls the other classes.
import java.awt.*;
import javax.swing.*;
public class main {
/** Creates a new instance of main */
public main() {
* @param args the command line arguments
public static void main(String[] args)
guiLayout labelFrame = new guiLayout(); // creates LabelFrame
labelFrame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE);
labelFrame.setSize(600, 200);
labelFrame.setVisible(true);
} The second class is the GUI class and event handler class.
import java.awt.*;
import javax.swing.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public class guiLayout extends JFrame{
    private JPanel centertop;
    private JPanel centermiddle;
    private JPanel centerbottom;
    private JLabel dateLabel;
    private JLabel nameLabel;
    private JLabel lessonLabel;
    private JLabel commentsLabel;
    private JTextArea DateTextArea;
    private JTextArea NameTextArea;
    private JTextArea LessonTextArea;
    private JTextArea CommentsTextArea;
    private JButton Save;
    private JButton Retrieve;
    private String tempDay[];
    private DataManager DMO;
    /** Creates a new instance of guiLayout */
    public guiLayout()
        super("Drive Application");
        setLayout(new FlowLayout());
        dateLabel = new JLabel("Date (mm/dd/yy)");
        nameLabel = new JLabel("Name");
        lessonLabel = new JLabel("Lesson (1-10)");
        commentsLabel = new JLabel("Comments");
        DateTextArea = new JTextArea(1, 7);
        NameTextArea = new JTextArea(1, 15);
        LessonTextArea = new JTextArea(1, 2);
        CommentsTextArea = new JTextArea(6, 30);
        Save = new JButton( "Save");
        Retrieve = new JButton( "Retrieve");
        //insert into GUI
        //TOP
        centertop = new JPanel();
        centertop.add(nameLabel);
        centertop.add(NameTextArea);
        centertop.add(lessonLabel);
        centertop.add(LessonTextArea);
        centertop.add(dateLabel);
        centertop.add(DateTextArea);
        centertop.setLayout(new GridLayout(6,1));
        add(centertop, BorderLayout.NORTH);
        centermiddle = new JPanel();
        centermiddle.setLayout(new GridLayout(1,1));
        centermiddle.add(CommentsTextArea);
        add(centermiddle, BorderLayout.CENTER);
        centerbottom = new JPanel();
        centerbottom.setLayout(new GridLayout(1,3));
        centerbottom.add (Save);
        centerbottom.add(Retrieve);
        add(centerbottom, BorderLayout.SOUTH);
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        Save.addActionListener( handler);
        Retrieve.addActionListener(handler);
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            String Datein = DateTextArea.getText();
            String Commentsin = CommentsTextArea.getText();
            int Lessonin = Integer.parseInt(LessonTextArea.getText());
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               DMO.Save(Namein, Datein, Commentsin, Lessonin);
            if(event.getSource()==Retrieve)
                if(Lessonin >= 1 && Lessonin <= 10)
                   LessonRecord r = (DMO.Retrieve(Namein, Lessonin));
                else
                    String errormess = "Lesson Number must be between 1 and 10!";
                    CommentsTextArea.setText(errormess);
}The third class is the DataManager class which handles the actual file i/o.
import java.io.*;
import java.util.*;
public class DataManager implements Serializable
    //private String Path = "P:\\D00766703\\CET431\\Assign5";
    private String Path = "C:\\Java";
    FileInputStream fin;
    FileOutputStream fout;
    ObjectInputStream oin;
    ObjectOutputStream oout;
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        String itemFile = Path + name + ".ser";
        File f = new File(itemFile);
        if (f.exists() == true)
            try
                if(fin == null)
                    fin = new FileInputStream(itemFile);
                    oin = new ObjectInputStream(fin);
                LessonRecord r[] = oin.readObject();
                if(fin.available() == 0)
                    oout.close();
                    fout.close();
                    return r[lesson - 1];
            catch(IOException ioe)
                System.out.print(ioe);
        else
            LessonRecord LR = new LessonRecord();
            LR.date = " ";
            LR.comment = "File Not Found";
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     *if file exists
     * create fileinputstream
     * create objectinputstream - oin
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     * LessonRecord |r[] = oin.readObject();    need cast to array here
     * close object input stream and file input stream
     * return |r[lesson - 1];
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     * LessonRecord LR = new LessonRecord();
     * LR.date = " ";
     * LR.comment = error message;
     * return LR;
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        String itemFile = Path + name + ".ser";
        File f = new File(itemFile);
        LessonRecord |r[];
        if (f.exists() == true)
            try
                fin = new FileInputStream(itemFile);
                oin = new ObjectInputStream(fin);
                LessonRecord r[] = oin.readObject();
            catch(IOException ioe)
                System.out.print(ioe);
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        r[lesson - 1] = new LessonRecord(date, comment);
        fout = new FileOutputStream(itemFile, true);
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        oout.close();
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     *if file exists
     * create fileinputstream
     * create objectinputstream - oin
     * read array of lesson records
     * LessonRecord |r[] = oin.readObject();    need cast to array here
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     * |r = new LessonRecord[10];
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     *createfileoutputstream(BaseDir\\Name);
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     *closefilestream
}And the fourth class is the LessonRecord class which is serializable and has the date and comments variables.
import java.io.Serializable;
public class LessonRecord implements Serializable
    public String Date;
    public String Comment;
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    public LessonRecord()
        Date = "";
        Comment = "";
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}I could have sworn that the professor said to make it |r for the account records variable names, but I always get errors when I do that, and I need to know how to cast to an array too.

hi Friend,
I have made some modification to your code. and try this...I think it will help you...
/*guiLayout.java*/
import java.awt.*;
import javax.swing.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
public class guiLayout extends JFrame{
    private JPanel centertop;
    private JPanel centermiddle;
    private JPanel centerbottom;
    private JLabel dateLabel;
    private JLabel nameLabel;
    private JLabel lessonLabel;
    private JLabel commentsLabel;
    private JTextArea DateTextArea;
    private JTextArea NameTextArea;
    private JTextArea LessonTextArea;
    private JTextArea CommentsTextArea;
    private JButton Save;
    private JButton Retrieve;
    private String tempDay[];
    private DataManager DMO;
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    public guiLayout()
        super("Drive Application");
        DMO=new DataManager();
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        nameLabel = new JLabel("Name");
        lessonLabel = new JLabel("Lesson (1-10)");
        commentsLabel = new JLabel("Comments");
        DateTextArea = new JTextArea(1, 7);
        NameTextArea = new JTextArea(1, 15);
        LessonTextArea = new JTextArea(1, 2);
        CommentsTextArea = new JTextArea(6, 30);
        Save = new JButton( "Save");
        Retrieve = new JButton( "Retrieve");
        //insert into GUI
        //TOP
        centertop = new JPanel();
        centertop.add(nameLabel);
        centertop.add(NameTextArea);
        centertop.add(lessonLabel);
        centertop.add(LessonTextArea);
        centertop.add(dateLabel);
        centertop.add(DateTextArea);
        centertop.setLayout(new GridLayout(6,1));
        add(centertop, BorderLayout.NORTH);
        centermiddle = new JPanel();
        centermiddle.setLayout(new GridLayout(1,1));
        centermiddle.add(CommentsTextArea);
        add(centermiddle, BorderLayout.CENTER);
        centerbottom = new JPanel();
        centerbottom.setLayout(new GridLayout(1,3));
        centerbottom.add (Save);
        centerbottom.add(Retrieve);
        add(centerbottom, BorderLayout.SOUTH);
        ButtonHandler handler = new ButtonHandler();
        Save.addActionListener( handler);
        Retrieve.addActionListener(handler);
    private class ButtonHandler implements ActionListener
        public void actionPerformed(ActionEvent event)
            String Namein = NameTextArea.getText();
            int Lessonin = Integer.parseInt(LessonTextArea.getText());
            if(event.getSource()==Save)
                String Datein = DateTextArea.getText();
                 String Commentsin = CommentsTextArea.getText();
               DMO.Save(Namein, Datein, Commentsin, Lessonin);
            if(event.getSource()==Retrieve)
                if(Lessonin >= 1 && Lessonin <= 10)
                   LessonRecord r = (DMO.Retrieve(Namein, Lessonin));
                   System.out.println("Retrieve:"+ r.Comment+":"+r.Date);
                else
                    String errormess = "Lesson Number must be between 1 and 10!";
                    CommentsTextArea.setText(errormess);
/*DataManager.java*/
import java.io.*;
import java.util.*;
public class DataManager implements Serializable
    //private String Path = "P:\\D00766703\\CET431\\Assign5";
    private String Path = "C:/Java";
    FileInputStream fin;
    FileOutputStream fout;
    ObjectInputStream oin;
    ObjectOutputStream oout;
    public LessonRecord Retrieve(String name, int lesson)
        String itemFile = Path + name + ".ser";
        File f = new File(itemFile);
        LessonRecord[] r=null;
        if (f.exists() == true)
            try
                if(fin == null)
                    fin = new FileInputStream(itemFile);
                    oin = new ObjectInputStream(fin);
                r= (LessonRecord[])oin.readObject();
                System.out.println(r[lesson-1].Comment+":"+r[lesson-1].Date);
            catch(IOException ioe)
                System.out.print(ioe);
              catch(ClassNotFoundException c){
                c.printStackTrace();
            finally
                try {
                    if(fin!=null)fin.close();
                    if(oin!=null)oin.close();
                } catch (IOException ex) {
                    ex.printStackTrace();
        else
            LessonRecord LR = new LessonRecord();
            LR.Date = " ";
            LR.Comment = "File Not Found";
            return LR;
    /*create file object for Path\\Name
     *if file exists
     * create fileinputstream
     * create objectinputstream - oin
     * read array of lesson records
     * LessonRecord |r[] = oin.readObject();    need cast to array here
     * close object input stream and file input stream
     * return |r[lesson - 1];
     *else file does NOT EXIST
     * LessonRecord LR = new LessonRecord();
     * LR.date = " ";
     * LR.comment = error message;
     * return LR;
return r[lesson - 1];
    public void Save(String name, String date, String comment, int lesson)
        String itemFile = Path + name + ".ser";
        File f = new File(itemFile);
        LessonRecord r[]=new LessonRecord[10];
        if (f.exists() == true)
            try
                fin = new FileInputStream(itemFile);
                oin = new ObjectInputStream(fin);
                 r = (LessonRecord[])oin.readObject();
            catch(IOException ioe)
                System.out.print(ioe);
            catch(ClassNotFoundException c){
                c.printStackTrace();
            finally
                try {
                    if(fin!=null)fin.close();
                    if(oin!=null)oin.close();
                } catch (IOException ex) {
                    ex.printStackTrace();
        else
            r = new LessonRecord[10];
   try
        r[lesson - 1] = new LessonRecord(date, comment);
        fout = new FileOutputStream(itemFile);
        oout = new ObjectOutputStream(fout);
        oout.writeObject(r);
        oout.flush();
   catch(IOException ioe)
        finally
            try {
                if(fout!=null)fout.close();
                if(oout!=null)oout.close();
            } catch (IOException ex) {
                ex.printStackTrace();
    /*create file object for Path\\Name
     *LessonRecord |r[];
     *if file exists
     * create fileinputstream
     * create objectinputstream - oin
     * read array of lesson records
     * LessonRecord |r[] = oin.readObject();    need cast to array here
     * close object input stream and file input stream
     *else
     * |r = new LessonRecord[10];
     *|r[lesson - 1] = new LessonRecord(date, comment);
     *createfileoutputstream(BaseDir\\Name);
     *createobjectoutputstream - oout
     *oout.write(|r);
     *closeobjectstream
     *closefilestream
}main.java and LessonRecord.java does not have any changes so you use the old code....
Thanks
Edited by: rajaram on Sep 28, 2007 1:24 PM

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Hi All,
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is there any
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Gurram wrote:
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Here is a piece of sample codes. You can save the bytes read from the object by invoking save(byte[] b), and load the last inserted object by invoking load.
* Created on 2004-12-23
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import java.io.FileInputStream;
import java.io.FileOutputStream;
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Saving An Object Array to a File

Please Help,
I am fairly new to Java. I am trying to write a program that inputs merchandise information (ItemName, Description, Price, etc�) to an object array. The program works internally with the array perfectly, but I can�t get it to save the array to a file so it can be read and reused the next time the program is run. The class the array is built on implements Serializable, but when it tries to save it to a file, it throws an exception message saying that my object is not serializable.
Does anyone have some code to help me save information to an array (so it can be used within the program), save the array to a disk file, and read the file back into the program the next time the program opens?
Thank you,
Bob

Thank you for your help. The total code is quite lengthy so I�ve tried to pick the most relevant code to include here.
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.text.*;
import java.io.*;
public class Class1 extends WindowAdapter implements ActionListener
// Object Array Declaration.
ItemInfo ItemArray[] = new ItemInfo[100];
* This is the Inner Class that the Array is built on. I have two constructors in it because I
* tried several different methods to make this write to the disk file
public class ItemInfo implements Serializable
     int ItemNum;
     int DeptNum;
     String ItemName;
     String Model;
     String Description;
     float Price;
     int Units;
// Constructors
     public ItemInfo() {};
     public ItemInfo(int inItemNum, int inDeptNum, String
                         inItemName, String inModel, String
                         inDescription, float inPrice, int inUnits)
          ItemNum = inItemNum;
          DeptNum = inDeptNum;
          ItemName = inItemName;
          Model = inModel;
          Description = inDescription;
          Price = inPrice;
          Units = inUnits;
} // end class ItemInfo.
* openOutputStream() *
     private void openOutputStream()
          try
          // create file and output object streams
               outputItemFile = new FileOutputStream("A:ItemFile.txt");
               objSaveItems = new ObjectOutputStream(outputItemFile);
          } // end try
          catch (Exception error)
               System.err.println("Error opening file");
          } // end catch
     } // end openOutputStream().
* closeOutputStream() *
     private void closeOutputStream()
          try
               objSaveItems.close();
               outputItemFile.close();
          catch (IOException error)
               System.err.println("Error Closing File");
          } // end catch
     } // end closeOutputStream().
* AddToItemArray() - This method just assigns the information to the Array elements *
     private void AddToItemArray()
          int ArrayNum = intItemFileSize - 1;
          ItemArray[ArrayNum] = new ItemInfo();
          ItemArray[ArrayNum].ItemNum = intNewItemNum;
          ItemArray[ArrayNum].DeptNum = intDeptNum;
          ItemArray[ArrayNum].ItemName = strItemName;
          ItemArray[ArrayNum].Model = strModel;
          ItemArray[ArrayNum].Description = strDescription;
          ItemArray[ArrayNum].Price = fltPrice;
          ItemArray[ArrayNum].Units = intUnits;
     } // end AddToItemArray().
* WriteToFile() - This is the latest effort to write to the file. The file gets opened, and
* the first element gets printed, but after that nothing but error messages (printed * below).
     private void WriteToFile()
          try
               openOutputStream();
               for (int a = 0; a <= intItemFileSize; a++)
                    objSaveItems.writeObject(ItemArray[a]);
                    objSaveItems.flush();
               closeOutputStream();
          } // end try.
          catch (Exception error)
               System.err.println("Error writing to file");
     } // end WriteToFile().
This is what appears on the disk file after I run the program (three items entered):
� sr Class1$ItemInfo�&q��B I DeptNumI ItemNumF PriceI UnitsL
Descriptiont Ljava/lang/String;L ItemNamet Ljava/lang/String;L Modelt Ljava/lang/String;L this$0t LClass1;xp A�� t
Claw Hammert Hammert CL550{sr java.io.NotSerializableException(Vx �� 5   xr java.io.ObjectStreamExceptiond��k�9��   xr java.io.IOExceptionl�sde%��   xr java.lang.Exception��> ; �   xr java.lang.Throwable��5'9w��   L
detailMessaget Ljava/lang/String;xpt Class1

System code 1, error 43. English text was "Expected an object Stream"

All,
I have been working on the same form for several weeks (In Livecycle 8.0). Today when I went to open it, I get the error message "Library returned system code 1, error 43. English text was "Expected an object Stream" " and the only option I have is to say okay, and the windows closes.
Background:
The Original Form was a MS Word Document that I converted to a pdf, and use Livecycle 8.0 to add drop down menus, fields etc. to it.
We have been using the form in reader for days, (testing it) and it still works fine in adobe reader, we can still open it without any problems.
However I needed to add more options to my drop down menu's and when I attempt to open the pdf file in Livecycle, all of sudden I get this error, system code 1, error 43.
I have googled, it a didnt find any help, and I have looked / searched the knowledge base with no luck.
Thank you for any assistance!
duffie

I have not seen that error ...can you email it to [email protected] and I will have a look

Socket + GZip Stream + Object Stream problem

Hello,
I've been having a problem with my threaded networked application. I want to send GZipped Objects over a socket, but the ObjectInputStream constructor blocks. I understand that it is waiting for header information from the corresponding ObjectOutputStream. I am sure that the socket connection has been established, and the ObjectOutputStream is constructed before the ObjectInputStream on the other end. The header information never seems to get to the other end.
If I remove the Gzip filter stream, everything works great. I'm thinking that the Gzip stream is buffering the 4 bytes of header info, waiting for more data before actually compressing anything. I've tried flushing everything, to no help. I've tried finish()ing the Gzip stream, but that means I can't send my object payload. I've checked the buffers of all the stream objects and see the Object Stream's header in its buffer, but never seems to get into the GZIPOutputStream's buffer.
Has anyone successfully used Object Stream > GZIP Stream > Socket Stream before?
I'm not interested in examples that use file streams, since I get the impression that Gzip works fine with those (and maybe even designed only for those, not for sockets).
Thanks for any help.
Dave C

Thanks. I see what I'm doing differently now. I was trying to send multiple objects over the gzip stream, not 1 at a time, finish(), and construct a new Gzip and Object output stream.
Seems to work with a ByteArrayOutput/InputStream, now to try with a socket..

Root object in Object Stream in Encrypted file

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