java - ClassNotFoundException: stream class checksum mismatch -

my remote (linux) , local (windows) node both use same jdk version 1.7.0_45 , gridgain 6.0.3 , peer-class loading enabled. folowing:

caused by: java.lang.classnotfoundexception: optimized stream class checksum mismatch (is same version of marshalled class present on nodes?) [expected=-3449, actual=7739, cls=class java.io.filedescriptor]     @ org.gridgain.grid.marshaller.optimized.gridoptimizedclassresolver.readclass(gridoptimizedclassresolver.java:345) 

local node console has log:

visor> [20:50:12] local node's library list differs remote node's [20:50:12] <commons-lang-2.6.jar> vs. <not jar or zip file> [20:50:12] <guava-14.0.1.jar> vs. <guava-15.0.jar> [20:50:12] <javax.servlet-api-3.0.1.jar> vs. <servlet-api-2.4.jar> [20:50:12] <jcommander-1.30.jar> vs. <jcommander-1.27.jar> [20:50:12] <log4j-1.2.16.jar> vs. <log4j.jar> [20:50:12] 

code

public final class gg_helloworld {      public static class gridcmd extends command<gridevt> {           @override         protected void executeimpl() throws commandexception, interruptedexception {              final gridconfiguration config = getevent().getconfig();               // task             gridcomputetask<string, integer> task = new gridcomputetasksplitadapter<string, integer>() {                  @notnull                 @override                 protected collection<? extends gridcomputejob> split(int gridsize,                         @notnull string arg) {                      collection<gridcomputejob> jobs = new linkedlist<>();                      (final string word : arg.split(" ")) {                          jobs.add(new gridcomputejobadapter() {                              @nullable                             @override                             public object execute() {                                  x.println(">>>");                                 x.println(">>> printing '" + word                                           + "' on node grid job.");                                 x.println(">>>");                                   // return number of letters in word.                                 return word.length();                             }                          });                     }                      return jobs;                 }                  @nullable                 @override                 public integer reduce(@notnull list<gridcomputejobresult> results) {                     return results.size() - 1 + f.sumint(f.<integer>jobresults(results));                 }              };              try (grid g = g.start(config)) {                  gridcomputetaskfuture<integer> fut = g.compute().execute(task, "hello grid enabled world!");                   // wait task completion.                 int phraselen = fut.get();                  x.println(">>>");                 x.println(">>> finished executing grid \"hello world\" example custom task.");                 x.println(">>> total number of characters in phrase '" + phraselen + "'.");                 x.println(">>> check nodes output (this node part of grid).");                 x.println(">>>");              } catch (gridexception e) {                 throw new commandexception(e);             }         }     }              } 

the file related code called master node.

looks trying (intentionally or not) send java.io.filedescriptor on network. cannot confirm right now, believe class may platform-specific, checksum mismatch.

on other hand, deserialized file descriptor not valid on remote computer anyway because contains operating system file descriptors/handles. think solution here make sure instances of java.io.filedescriptor not sent remote nodes.

if sending anonymous compute closure, try make static , pass required arguments constructor parameters. way make sure no local variables captured java compiler class.