iText on a 10G database (1.4 JVM) generates a stacktrace

Question

I merge different pdfs together with itext 2.1.3. When I am in Eclipse with a 1.6 jvm version everything works fine. However when I try to run on a 10G database (JVM 1.4) I get an error. It is doing this since we have a new version of a certain file. The error is targed on this line :

List bookmarks = SimpleBookmark.getBookmark(reader);

The stacktrace is :

message : essage: null
StackTrace: 
java.nio.charset.Charset Charset.java class$ (-1)
java.nio.charset.Charset$1 Charset.java <init> (-1)
java.nio.charset.Charset Charset.java providers (-1)
java.nio.charset.Charset Charset.java access$000 (-1)
java.nio.charset.Charset$2 Charset.java run (-1)
java.security.AccessController AccessController.java doPrivileged (-1)
java.nio.charset.Charset Charset.java lookupViaProviders (-1)
java.nio.charset.Charset Charset.java lookup (-1)
java.nio.charset.Charset Charset.java isSupported (-1)
java.lang.StringCoding StringCoding.java lookupCharset (-1)
java.lang.StringCoding StringCoding.java decode (-1)
java.lang.String String.java <init> (-1)
java.lang.String String.java <init> (-1)
com.lowagie.text.pdf.PdfEncodings null convertToString (-1)
com.lowagie.text.pdf.PdfString null toUnicodeString (-1)
com.lowagie.text.pdf.SimpleBookmark null bookmarkDepth (-1)
com.lowagie.text.pdf.SimpleBookmark null bookmarkDepth (-1)
com.lowagie.text.pdf.SimpleBookmark null getBookmark (-1)
ConsolidationDemande2 ConsolidationDemande2 consoliderDemande2 (1099)
ConsolidationDemande2 ConsolidationDemande2 consoliderDemande2 (109)
Cause by: Message: java/nio/charset/spi/CharsetProvider
StackTrace: 
java.lang.Class Class.java forName0 (-1)
java.lang.Class Class.java forName (-1)
java.nio.charset.Charset Charset.java class$ (-1)
java.nio.charset.Charset$1 Charset.java <init> (-1)
java.nio.charset.Charset Charset.java providers (-1)
java.nio.charset.Charset Charset.java access$000 (-1)
java.nio.charset.Charset$2 Charset.java run (-1)
java.security.AccessController AccessController.java doPrivileged (-1)
java.nio.charset.Charset Charset.java lookupViaProviders (-1)
java.nio.charset.Charset Charset.java lookup (-1)
java.nio.charset.Charset Charset.java isSupported (-1)
java.lang.StringCoding StringCoding.java lookupCharset (-1)
java.lang.StringCoding StringCoding.java d

Can you help ?

Thanks.

Pierrick