selenium-webdriver 2.48.2 causes cannot be cast to java.lang.String exception

[ambirag]

When I updated 2.48.2 of selenium-webdriver, and request gridscaler to create node, i get the following exception:

Nov 10, 2015 12:29:32:924 PM - WARN [qtp2033294196-28] [ServletHandler] /grid/admin/AutomationTestRunServlet
java.lang.ClassCastException: org.openqa.selenium.Platform$12 cannot be cast to java.lang.String
at com.rmn.qa.AutomationRunRequest.matchesCapabilities(AutomationRunRequest.java:187) ~[automation-grid.jar:na]
at com.rmn.qa.AutomationRequestMatcher.getNumFreeThreadsForParameters(AutomationRequestMatcher.java:93) ~[automation-grid.jar:na]
at com.rmn.qa.servlet.AutomationTestRunServlet.doPost(AutomationTestRunServlet.java:200) ~[automation-grid.jar:na]
at com.rmn.qa.servlet.AutomationTestRunServlet.doGet(AutomationTestRunServlet.java:143) ~[automation-grid.jar:na]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) ~[automation-grid.jar:na]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) ~[automation-grid.jar:na]
at org.seleniumhq.jetty9.servlet.ServletHolder.handle(ServletHolder.java:808) ~[automation-grid.jar:na]
at org.seleniumhq.jetty9.servlet.ServletHandler.doHandle(ServletHandler.java:587) [automation-grid.jar:na]
at org.seleniumhq.jetty9.server.session.SessionHandler.doHandle(SessionHandler.java:221) [automation-grid.jar:na]
at org.seleniumhq.jetty9.server.handler.ContextHandler.doHandle(ContextHandler.java:1127) [automation-grid.jar:na]
at org.seleniumhq.jetty9.servlet.ServletHandler.doScope(ServletHandler.java:515) [automation-grid.jar:na]
at org.seleniumhq.jetty9.server.session.SessionHandler.doScope(SessionHandler.java:185) [automation-grid.jar:na]
at org.seleniumhq.jetty9.server.handler.ContextHandler.doScope(ContextHandler.java:1061) [automation-grid.jar:na]
at org.seleniumhq.jetty9.server.handler.ScopedHandler.handle(ScopedHandler.java:141) [automation-grid.jar:na]
at org.seleniumhq.jetty9.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) [automation-grid.jar:na]
at org.seleniumhq.jetty9.server.Server.handle(Server.java:499) [automation-grid.jar:na]
at org.seleniumhq.jetty9.server.HttpChannel.handle(HttpChannel.java:310) [automation-grid.jar:na]
at org.seleniumhq.jetty9.server.HttpConnection.onFillable(HttpConnection.java:257) [automation-grid.jar:na]
at org.seleniumhq.jetty9.io.AbstractConnection$2.run(AbstractConnection.java:540) [automation-grid.jar:na]
at org.seleniumhq.jetty9.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) [automation-grid.jar:na]
at org.seleniumhq.jetty9.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) [automation-grid.jar:na]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_85]
Nov 10, 2015 12:29:32:926 PM - WARN [qtp2033294196-28] [HttpChannel] /grid/admin/AutomationTestRunServlet?uuid=testRun1&threadCount=16&browser=firefox
java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.isAsyncStarted()Z
at org.seleniumhq.jetty9.servlet.ServletHandler.doHandle(ServletHandler.java:684) ~[automation-grid.jar:na]
at org.seleniumhq.jetty9.server.session.SessionHandler.doHandle(SessionHandler.java:221) ~[automation-grid.jar:na]
at org.seleniumhq.jetty9.server.handler.ContextHandler.doHandle(ContextHandler.java:1127) ~[automation-grid.jar:na]
at org.seleniumhq.jetty9.servlet.ServletHandler.doScope(ServletHandler.java:515) ~[automation-grid.jar:na]
at org.seleniumhq.jetty9.server.session.SessionHandler.doScope(SessionHandler.java:185) ~[automation-grid.jar:na]
at org.seleniumhq.jetty9.server.handler.ContextHandler.doScope(ContextHandler.java:1061) ~[automation-grid.jar:na]
at org.seleniumhq.jetty9.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[automation-grid.jar:na]
at org.seleniumhq.jetty9.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) ~[automation-grid.jar:na]
at org.seleniumhq.jetty9.server.Server.handle(Server.java:499) ~[automation-grid.jar:na]
at org.seleniumhq.jetty9.server.HttpChannel.handle(HttpChannel.java:310) ~[automation-grid.jar:na]
at org.seleniumhq.jetty9.server.HttpConnection.onFillable(HttpConnection.java:257) [automation-grid.jar:na]
at org.seleniumhq.jetty9.io.AbstractConnection$2.run(AbstractConnection.java:540) [automation-grid.jar:na]
at org.seleniumhq.jetty9.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) [automation-grid.jar:na]
at org.seleniumhq.jetty9.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) [automation-grid.jar:na]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_85]