Exception while dispatching incoming RPC call - GWT -


i facing error while running gwt application.

public abstract class basedaoimpl<t> implements basedao<t> {      private class<t> persistentclass; @override     public list<t> findall() {         persistencemanager pm = pmf.get().getpersistencemanager();         list<t> results = null;         query query = null;         try{             query = pm.newquery(persistentclass); [error line]             results = (list<t>) query.execute();             results = (list<t>) pm.detachcopyall(results);         }finally{             pm.close();         }         return results;     } }

showing me error following:

[error] javax.servlet.servletcontext log: exception while dispatching incoming rpc call com.google.gwt.user.server.rpc.unexpectedexception: service method 'public abstract java.util.list com.aamjanta.webapp.client.service.storeservice.getstorelist()' threw unexpected exception: java.lang.outofmemoryerror: permgen space @ com.google.gwt.user.server.rpc.rpc.encoderesponseforfailure(rpc.java:385) @ com.google.gwt.user.server.rpc.rpc.invokeandencoderesponse(rpc.java:588) @ com.google.gwt.user.server.rpc.remoteserviceservlet.processcall(remoteserviceservlet.java:208) @ com.google.gwt.user.server.rpc.remoteserviceservlet.processpost(remoteserviceservlet.java:248) @ com.google.gwt.user.server.rpc.abstractremoteserviceservlet.dopost(abstractremoteserviceservlet.java:62) @ javax.servlet.http.httpservlet.service(httpservlet.java:637) @ javax.servlet.http.httpservlet.service(httpservlet.java:717) @ org.mortbay.jetty.servlet.servletholder.handle(servletholder.java:511) @ org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1166)

[error] javax.servlet.servletcontext log: exception while dispatching incoming rpc call com.google.gwt.user.server.rpc.unexpectedexception: service method 'public abstract java.util.list com.aamjanta.webapp.client.service.storeservice.getstorelist()' threw unexpected exception: java.lang.noclassdeffounderror: not initialize class org.datanucleus.store.appengine.jdo.datastorejdometadatamanager @ com.google.gwt.user.server.rpc.rpc.encoderesponseforfailure(rpc.java:385) @ com.google.gwt.user.server.rpc.rpc.invokeandencoderesponse(rpc.java:588) @ com.google.gwt.user.server.rpc.remoteserviceservlet.processcall(remoteserviceservlet.java:208) @ com.google.gwt.user.server.rpc.remoteserviceservlet.processpost(remoteserviceservlet.java:248) @ com.google.gwt.user.server.rpc.abstractremoteserviceservlet.dopost(abstractremoteserviceservlet.java:62) @ javax.servlet.http.httpservlet.service(httpservlet.java:637) @ javax.servlet.http.httpservlet.service(httpservlet.java:717)

[error] javax.servlet.servletcontext log: exception while dispatching incoming rpc call com.google.gwt.user.server.rpc.unexpectedexception: service method 'public abstract java.util.list com.aamjanta.webapp.client.service.couponservice.getcouponlist()' threw unexpected exception: java.lang.noclassdeffounderror: not initialize class org.datanucleus.store.appengine.jdo.datastorejdometadatamanager @ com.google.gwt.user.server.rpc.rpc.encoderesponseforfailure(rpc.java:385) @ com.google.gwt.user.server.rpc.rpc.invokeandencoderesponse(rpc.java:588) @ com.google.gwt.user.server.rpc.remoteserviceservlet.processcall(remoteserviceservlet.java:208) @ com.google.gwt.user.server.rpc.remoteserviceservlet.processpost(remoteserviceservlet.java:248) @ com.google.gwt.user.server.rpc.abstractremoteserviceservlet.dopost(abstractremoteserviceservlet.java:62) @ javax.servlet.http.httpservlet.service(httpservlet.java:637) @ javax.servlet.http.httpservlet.service(httpservlet.java:717)

it looks gwt isn't expecting server side fail "java.lang.outofmemoryerror: permgen", happens when server jvm doesn't have enough memory jit-compile classes into.

(use -xx:maxpermsize=128m increase size of perm space).


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