Exception while sending mail through GNU JavaMail API.

Hello gnu javamail team,

I've one problem while sending mail using gnu javamail library. Here is 
what I'm using.

I'm using JamVm (a third party java virtual machine) with GNU Classpath 
0.98. And I'm also using GNU javamail 1.1.2 library compiled with 
dependent GNU libraries. Now, I've written a code to send the stored EML 
files on the disk to the recipient. See the following code.

                  |Authenticator authenticator=||*null*;|

|                  MailcapCommandMap mc = 
(MailcapCommandMap)CommandMap./getDefaultCommandMap/();|

|                  CommandMap./setDefaultCommandMap/(mc);                  |

|                  |

|                  Properties mailProperties = *new* Properties();   |

|                  mailProperties.put(MailConstants./MAILSMTPHOST/, 
mailServerHost);|

|                  mailProperties.put(MailConstants./MAILSMTPPORT/, 
mailServerPort);|

|                  mailProperties.put(MailConstants./MAILDEBUG/, 
MailConstants./VALUETRUE/);|

|                  
mailProperties.put(MailConstants./MAILTRANSPORTPROTOCOL/, 
MailConstants./TRANSPORTPROTOCOLSMTP/);                 |

|                  mailProperties.put(MailConstants./MAILSMTPAUTH/, 
"false");|

|                  mailProperties.put(MailConstants./MAILDEBUG/, 
MailConstants./VALUETRUE/);|

|                  Session mailSession = 
Session./getInstance/(mailProperties, authenticator);|

|                  InputStream source = *new* FileInputStream(file);|

|                  MimeMessage mimeMessage = *new* 
MimeMessage(mailSession,source);|

|                  mimeMessage.setHeader("Content-Type", 
"multipart/mixed");|

|                  Address[] fromAddrsss = *new* Address[1];|

|                  Address[] toAddress = *new* Address[1];|

|                  fromAddrsss[0] = *new* InternetAddress(mailFrom);|

|                  toAddress[0] = *new* 
InternetAddress(mailTo);                 |

|                  mimeMessage.addFrom(fromAddrsss);|

|                  mimeMessage.setRecipients(Message.RecipientType./TO/, 
toAddress);|

|                  mimeMessage.setSubject(strSubject);             |

|                  Transport./send/(mimeMessage);|


and I am getting following exception while sending the mail. The code is 
working fine with sun JVM and the javamail (not GNU javamail) library.

Exception is

Exception while sending Mail java.lang.ClassCastException 
<http://java.sun.com/javase/6/docs/api/java/lang/ClassCastException.html>: 
java/io/ByteArrayInputStreamjava.lang.ClassCastException: 
java/io/ByteArrayInputStream

at javax.mail.internet.MimeMessage.updateHeaders(MimeMessage.java:1866)

at javax.mail.internet.MimeMessage.saveChanges(MimeMessage.java:1843)

at javax.mail.Transport.send(Transport.java:74)

at my.utilities.SendUtility.sendMail(SendUtility.java:199)

at my.utilities.SendUtility.handleReleaseRequest(SendUtility.java:70)

at my.servlets.MyServlet.doPost(MyServlet..java:129)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:638)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:720)

at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199) 


at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:145) 


at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210) 


at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596) 


at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)

at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:139) 


at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596) 


at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)

at 
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2460)

at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133) 


at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596) 


at 
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:119) 


at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594) 


at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) 


at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594) 


at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)

at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127) 


at 
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596) 


at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)

at org.apache.ajp.tomcat4.Ajp13Processor.process(Ajp13Processor.java:410)

at org.apache.ajp.tomcat4.Ajp13Processor.run(Ajp13Processor.java:529)

at java.lang.Thread.run(Thread.java:745)


-- 
Thanks and Regards,

Dhaval Yoganandi,
Jr. Software Engineer,
Elitecore Technologies Ltd.
Cyberoam.