create CMP with large amount of data (file content)

[yura22]

When I trying create a CMP bean that have a field with big amount of data
JBoss throw OutOfMemoryError.
My application has a possibility to upload files. When file size less 1Mb uploaded all is fine. But when you try upload bigger file then OutOfMemoryError thrown.
I am using JBoss 3.2.3 and Postgres 7.4

public abstract class DocBean implements EntityBean {
 public java.lang.Integer ejbCreate(Doc doc) throws javax.ejb.CreateException {
 try {
 // ...
 setContent(doc.getContent());
 // ...
 } catch (Exception e) {
 //...
 }

 return null;
 }
 public abstract byte[] getContent();
 public abstract void setContent(byte[] value);

}