Attachment tests (as testsuite) fail on unix platforms (solaris and linux tested)

javax.xml.soap.SOAPException: javax.imageio.IIOException: Unexpected block type 0!
at org.jboss.ws.soap.attachment.AttachmentPartImpl.getContent(AttachmentPartImpl.java:103)
at org.jboss.ws.binding.EndpointInvocation.transformPayloadValue(EndpointInvocation.java:2
13)
at org.jboss.ws.binding.EndpointInvocation.getRequestParamValue(EndpointInvocation.java:10
3)
at org.jboss.ws.binding.EndpointInvocation.getRequestPayload(EndpointInvocation.java:117)
at org.jboss.ws.server.ServiceEndpointInvokerJSE.invokeServiceEndpoint(ServiceEndpointInvo
kerJSE.java:94)
at org.jboss.ws.server.ServiceEndpointInvoker.invoke(ServiceEndpointInvoker.java:118)
at org.jboss.ws.server.ServiceEndpoint.handleRequest(ServiceEndpoint.java:234)
at org.jboss.ws.server.ServiceEndpointServlet.doPost(ServiceEndpointServlet.java:120)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain
.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:17
3)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain
.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:17
3)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.
java:175)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)