Upgrade to SmartGWT 5.1p from SmartGWT 5.0

[sondre@innovationconsulting.no]

When upgraded SmartGWT version from 5.0-p20150412 to 5.1p20151213 we had a problem with DataTools class.
javax.servlet.ServletException: java.lang.NoClassDefFoundError: Could not initialize class com.isomorphic.util.DataTools at com.caucho.server.dispatch.FilterManager.createFilter(FilterManager.java:174) at com.caucho.server.dispatch.FilterMapper.buildDispatchChain(FilterMapper.java:166) at com.caucho.server.webapp.WebApp.buildInvocation(WebApp.java:2069) at com.caucho.server.webapp.WebAppContainer.buildInvocation(WebAppContainer.java:716) at com.caucho.server.host.Host.buildInvocation(Host.java:489) at com.caucho.server.host.HostContainer.buildInvocation(HostContainer.java:314) at com.caucho.server.cluster.Server.buildInvocation(Server.java:1013) at com.caucho.server.dispatch.DispatchServer.buildInvocation(DispatchServer.java:209) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:265) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:682) at com.caucho.util.ThreadPool$Item.runTasks(ThreadPool.java:743) at com.caucho.util.ThreadPool$Item.run(ThreadPool.java:662) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.NoClassDefFoundError: Could not initialize class com.isomorphic.util.DataTools at com.isomorphic.base.ConfigLoader.loadAndMerge(ConfigLoader.java:111) at com.isomorphic.base.ConfigLoader.loadAndMerge(ConfigLoader.java:70) at com.isomorphic.base.ConfigLoader.loadConfig(ConfigLoader.java:187) at com.isomorphic.base.Config.initGlobalConfig(Config.java:150) at com.isomorphic.base.Config.initGlobalConfig(Config.java:142) at com.isomorphic.base.Config.getGlobal(Config.java:97) at com.isomorphic.base.Config.getGlobal(Config.java:106) at com.isomorphic.servlet.BaseFilter.init(BaseFilter.java:58) at com.isomorphic.servlet.CompressionFilter.init(CompressionFilter.java:149) at com.google.inject.servlet.FilterDefinition.init(FilterDefinition.java:81) at com.google.inject.servlet.ManagedFilterPipeline.initPipeline(ManagedFilterPipeline.java:102) at com.google.inject.servlet.GuiceFilter.init(GuiceFilter.java:168) at com.caucho.server.dispatch.FilterManager.createFilter(FilterManager.java:144) at com.caucho.server.dispatch.FilterMapper.buildDispatchChain(FilterMapper.java:166) at com.caucho.server.webapp.WebApp.buildInvocation(WebApp.java:2069) at com.caucho.server.webapp.WebAppContainer.buildInvocation(WebAppContainer.java:716) at com.caucho.server.host.Host.buildInvocation(Host.java:489) at com.caucho.server.host.HostContainer.buildInvocation(HostContainer.java:314) at com.caucho.server.cluster.Server.buildInvocation(Server.java:1013) at com.caucho.server.dispatch.DispatchServer.buildInvocation(DispatchServer.java:209) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:265) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:682) at com.caucho.util.ThreadPool$Item.runTasks(ThreadPool.java:743) at com.caucho.util.ThreadPool$Item.run(ThreadPool.java:662) at java.lang.Thread.run(Thread.java:745)
Checked all jars and everything looks OK. I replaced the isomorphic-core-rpc-5.1-p20151213.jar jar with the one from previous version ( 5.0-p20150412) and the project is working. We suspect there is a problem with this jar. Can you please check if there are any problems with this jar?

[Isomorphic]

We know you said you've check your .jars, but, this is clearly a missing jar problem (NoClassDef found error). You should revisit your classpath setup. If necessary, you can use various JVM settings or tools to find out the specific missing class (Google for details on different approaches).