Out Of Memory Error Inserting Files

Hello.
I'm working with SQL Server 2005 Standard edition.
I have a Java program that loads PDF files into the database. I have a table called T08_entity which, among others, has two IMAGE columns. The first Image column is for the original PDF file. The second one is for the PDF file with modified permissions (printing, saving, etc). This is made using the i-text library.
The programs looks for the content of a disk folder, reads the contents of the folder, and inserts, one by one, the pdf files (besides other fields, like the name of the file, and ID, etc... but these are varchar or int fields. No problem with these.
When the folder has only small files (smaller that 7-8 mb), it loads them without any problem into the database. But when the folder has bigger files (>10mb, more or less...) I get an OUT OF MEMORY error.
I'm using the latest sqljdbc.jar driver (v1.2.2727). My server computer has only 1GB of RAM... but I've read that this latest driver can load big amounts of binary data using the connection property "responseBuffering=adaptive".
Here is a sample of my code (at least the most relevant lines):


This is my connection code:



public String getConnectionUrl(){
return "jdbc:sqlserver://"+serverName+":"+portNumber+";databaseName="
+databaseName+";responseBuffering=adaptive;selectMethod=cursor";
}

public java.sql.Connection getConnection(){
try{

...

Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
con = java.sql.DriverManager.getConnection(getConnectionUrl(),userName,password); if (con.getAutoCommit())
{
con.setAutoCommit(false);
}
...
}
catch(Exception e){
System.out.println("etc, etc...");
}
return con;
}




The following is a loop where each loop represents a file in the folder:




File[] contenido = archivo.listFiles();
for(int i=0;i<contenido.length;i++)
{
if (contenido[i].isDirectory())
{
procesarDirectory(contenido[i]);
}else
{
insertDirectory(contenido[i]);
}
}



...And this is the insertDirectory procedure which inserts every file: the pdffile and pdffilenoperm are the IMAGE columns. The rest are varchar or int columns:






public void insertDirectorio(File archivo) {...if (archivo.isFile()){ pstmt =con.prepareStatement("INSERT INTO temp_carga "+ "(directory, name, dir_sup, filetype, pfilesize,pdffile,pdffilenoperm)"+ " values (?,?,?,?,?,?,?)"); }...
long tamano = archivo.length();

pstmt.setString(1,pdffile.getPath());
pstmt.setString(2,pdffile.getName());
pstmt.setString(3,pdffile.getParent());

pstmt.setString(4,filetype);

if (pfilesize != 0) {
pstmt.setLong(5,pfilesize);
}
else
{
pstmt.setString(5,null);
}

if (pdffile.isFile()) {
try{

//INSERTS ORIGINAL FILE................
int fileLength = Integer.MIN_VALUE;
is = new FileInputStream(pdffile);
fileLength= (int) pdffile.length();
pstmt.setBinaryStream(6, is, fileLength);


//INSERTS FILE WITHOUT PERMISSIONS
(THIS PART OF THE CODE IS LONG AND IRRELEVANT, IT JUST USES THE ITEXT LIBRARY TO MODIFY THE PDF FILE. AT THE END, I HAVE THE FILE IN AN OUTPUT STREAM, AS SHOWN HERE:)
ByteArrayInputStream inputnoimp = new ByteArrayInputStream(outnoimp.toByteArray());
pstmt.setBinaryStream(7,inputnoimp,(int)outnoimp.size());
} catch(Exception e) {
err = e.toString();
}
}
pstmt.executeUpdate();
con.commit();
pstmt.close();
this.closeConnection();
}catch(java.sql.SQLException e) {
err = e.toString();
}
}




Well, as I said, when I run the program, when it reads smaller files, there's no problem. But when it gets a big file, I get the OUT OF MEMORY error. I have another application that reads pdf files ONE AT A TIME, using a code very much like this one, and it reads big files (>30mb) with no problems. The problems is with this one.
Any help will be appreciated. If you have any question to clarify the problem, just tell me.
Thanks in advance.
Eric.