[jboss-remoting-issues] [JBoss JIRA] Closed: (JBREM-1109) Eliminate race in MicroRemoteClientInvoker.getDataType()

Eliminate race in MicroRemoteClientInvoker.getDataType() -------------------------------------------------------- Key: JBREM-1109 URL: https://jira.jboss.org/jira/browse/JBREM-1109 Project: JBoss Remoting Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 2.5.0.SP2 (Flounder) , 2.2.2.SP11 Reporter: Ron Sigal Assignee: Ron Sigal Fix For: 2.5.0.SP3 (Flounder), 2.2.2.SP12 Attachments: jboss-remoting.jar In org.jboss.remoting.MicroRemoteClientInvoker.getDataType(): private String getDataType() { if (dataType == null) { dataType = getDataType(getLocator()); if (dataType == null) { dataType = getDefaultDataType(); } } return dataType; } the line dataType = getDataType(getLocator()); would temporarily set dataType to null if, as is usually the case, the InvokerLocator has no datatype parameter. A second thread might see dataType != null and then return null. A solution is to use a local variable while checking InvokerLocator for a datatype value.