I am new to Objectify and trying to use it with gwt but I am getting error
on RPC... I don't know what that mean. The error is like...
Starting Jetty on port 8888
[WARN] Exception while dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public
abstract java.lang.String
com.sijan.distributed.client.DSService.persistMember(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String)
throws java.lang.IllegalArgumentException' threw an unexpected exception:
java.lang.NullPointerException: No API environment is registered for this
thread.
at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:389)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:579)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
at
com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at
org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
at
org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:205)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)
Caused by: java.lang.NullPointerException: No API environment is registered
for this thread.
at
com.google.appengine.api.datastore.DatastoreApiHelper.getCurrentAppId(DatastoreApiHelper.java:86)
at
com.google.appengine.api.datastore.BaseDatastoreServiceImpl.beginTransactionInternal(BaseDatastoreServiceImpl.java:123)
at
com.google.appengine.api.datastore.AsyncDatastoreServiceImpl.beginTransaction(AsyncDatastoreServiceImpl.java:874)
at
com.googlecode.objectify.impl.cmd.ObjectifyImplTxn.<init>(ObjectifyImplTxn.java:85)
at
com.googlecode.objectify.impl.cmd.ObjectifyImpl.transaction(ObjectifyImpl.java:161)
at
com.googlecode.objectify.impl.cmd.ObjectifyImpl.transactOnce(ObjectifyImpl.java:251)
at
com.googlecode.objectify.impl.cmd.ObjectifyImpl.transactNew(ObjectifyImpl.java:232)
at
com.googlecode.objectify.impl.cmd.ObjectifyImpl.transactNew(ObjectifyImpl.java:222)
at
com.googlecode.objectify.impl.cmd.ObjectifyImpl.transact(ObjectifyImpl.java:214)
at
com.sijan.distributed.server.DSServiceImpl.persistMember(DSServiceImpl.java:36)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:561)
... 22 more
[ERROR] 500 - POST /com.sijan.distributed.distributed/DSService (127.0.0.1)
57 bytes
Request headers
Accept: */*
X-GWT-Permutation: HostedMode
X-GWT-Module-Base:
http://127.0.0.1:8888/com.sijan.distributed.distributed/
Content-Type: text/x-gwt-rpc; charset=utf-8
Referer:
http://127.0.0.1:8888/distributed.html?gwt.codesvr=127.0.0.1:9997
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1;
Trident/5.0)
Host: 127.0.0.1:8888
Content-Length: 274
Connection: Keep-Alive
Cache-Control: no-cache
Response headers
Content-Type: text/plain
Please someone can help me out, I am doing a datastore project and chose to
use objectify.
Thanks.
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