Problems on sending emails. any changes in JavaMail API?

Hello, I was able to send emails until yesterday, since then every time I try to send an email I get this error:

04-24-2007 10:34 - Sending email to : xxx@xxx.xx ...java.lang.NullPointerException

at java.lang.String.concat(String.java:1997)

at com.sun.activation.registries.MailcapFile.parseLine(MailcapFile.java:235)

at com.sun.activation.registries.MailcapFile.parse(MailcapFile.java:197)

at com.sun.activation.registries.MailcapFile.createMailcapHash(MailcapFile.java:157)

at com.sun.activation.registries.MailcapFile.<init>(MailcapFile.java:40)

at javax.activation.MailcapCommandMap.loadFile(MailcapCommandMap.java:276)

at javax.activation.MailcapCommandMap.<init>(MailcapCommandMap.java:128)

at javax.activation.CommandMap.getDefaultCommandMap(CommandMap.java:44)

at javax.activation.DataHandler.getCommandMap(DataHandler.java:136)

at javax.activation.DataHandler.getDataContentHandler(DataHandler.java:568)

at javax.activation.DataHandler.writeTo(DataHandler.java:294)

at javax.mail.internet.MimeUtility.getEncoding(MimeUtility.java:248)

at javax.mail.internet.MimeBodyPart.updateHeaders(MimeBodyPart.java:1268)

at javax.mail.internet.MimeMessage.updateHeaders(MimeMessage.java:2012)

at javax.mail.internet.MimeMessage.saveChanges(MimeMessage.java:1980)

at javax.mail.Transport.send(Transport.java:97)

at com.ws.mail.MailWSImpl.postMail(MailWSImpl.java:99)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.codehaus.xfire.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:54)

at org.codehaus.xfire.service.invoker.ObjectInvoker.invoke(ObjectInvoker.java:45)

at org.codehaus.xfire.service.binding.ServiceInvocationHandler.sendMessage(ServiceInvocationHandler.java:271)

at org.codehaus.xfire.service.binding.ServiceInvocationHandler$1.run(ServiceInvocationHandler.java:84)

at org.codehaus.xfire.service.binding.ServiceInvocationHandler.execute(ServiceInvocationHandler.java:132)

at org.codehaus.xfire.service.binding.ServiceInvocationHandler.invoke(ServiceInvocationHandler.java:107)

at org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:131)

at org.codehaus.xfire.transport.DefaultEndpoint.onReceive(DefaultEndpoint.java:64)

at org.codehaus.xfire.transport.AbstractChannel.receive(AbstractChannel.java:38)

at org.codehaus.xfire.transport.http.XFireServletController.invoke(XFireServletController.java:301)

at org.codehaus.xfire.transport.http.XFireServletController.doService(XFireServletController.java:130)

at org.codehaus.xfire.transport.http.XFireServlet.doPost(XFireServlet.java:116)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)

at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)

at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)

at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)

at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)

at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)

at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)

at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)

at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)

at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)

at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)

at java.lang.Thread.run(Thread.java:619)

Impossible to send email

why is this happening?

[5354 byte] By [a25139a] at [2007-11-27 2:07:34]
# 1
Problem solved.ubuntu added a strange line to my $HOME/.mailcap.I deleted it and it works :)
a25139a at 2007-7-12 1:55:55 > top of Java-index,Enterprise & Remote Computing,Enterprise Technologies...