This question already has answers here:
java.lang.UnsupportedOperationException for removing a row from the javafx tableview
(2 answers)
Why SortedList.add() throws UnsupportedOperationException?
(1 answer)
Closed 5 years ago.
I'm working in javafx. I have a Listview which is updated by an ObservableList.
Here is my code.
//Dummy list for testing listview
final ObservableList<String> names = FXCollections.observableArrayList(
"Julia", "Ian", "Sue", "Matthew", "Hannah", "Stephan", "Denise");
final ListView<String> listView = new ListView(names.sorted());
//Try to remove the first element for testing purposes
listView.getItems().remove(0);
When I try to delete I get this exception.
Exception in Application start method
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(LauncherImpl.java:182)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.UnsupportedOperationException
at java.util.AbstractList.remove(AbstractList.java:161)
at sample.Main.start(Main.java:39)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
... 1 more
Exception running application sample.Main
Is there some step that I'm missing in this case? Or am I trying to use ObservableList and ListView in the wrong way?
You are using javafx.collections.transformation.SortedList<E> in an incorrect way.
It's only a wrapper, a view.
To remove an element, you have to use the source collection: names.
javafx.collections.transformation.SortedList<E> doesn't implements remove() but:
Wraps an ObservableList and sorts it's content. All changes in the
ObservableList are propagated immediately to the SortedList. Note:
invalid SortedList (as a result of broken comparison) doesn't send any
notification to listeners on becoming valid again.
JavaDoc of javafx.collections.transformation.SortedList
This tutorial may help.
Related
I have hadoop3.1.2 with hive 3.1.2 on win10, the problem is whenever I use select command or other functions to tables I got below errors and cli stops running, any help is grateful.
Exception in thread "main" java.lang.IncompatibleClassChangeError: Class com.google.common.collect.ImmutableSortedMap does not implement the requested interface java.util.NavigableMap
at org.apache.calcite.schema.Schemas.gatherLattices(Schemas.java:498)
at org.apache.calcite.schema.Schemas.getLatticeEntries(Schemas.java:492)
at org.apache.calcite.jdbc.CalciteConnectionImpl.init(CalciteConnectionImpl.java:153)
at org.apache.calcite.jdbc.Driver$1.onConnectionInit(Driver.java:109)
at org.apache.calcite.avatica.UnregisteredDriver.connect(UnregisteredDriver.java:139)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:208)
at org.apache.calcite.tools.Frameworks.withPrepare(Frameworks.java:150)
at org.apache.calcite.tools.Frameworks.withPlanner(Frameworks.java:111)
at org.apache.hadoop.hive.ql.parse.CalcitePlanner.logicalPlan(CalcitePlanner.java:1414)
at org.apache.hadoop.hive.ql.parse.CalcitePlanner.getOptimizedAST(CalcitePlanner.java:1430)
at org.apache.hadoop.hive.ql.parse.CalcitePlanner.genOPTree(CalcitePlanner.java:450)
at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:12164)
at org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:330)
at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:285)
at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:659)
at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1826)
at org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:1773)
at org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:1768)
at org.apache.hadoop.hive.ql.reexec.ReExecDriver.compileAndRespond(ReExecDriver.java:126)
at org.apache.hadoop.hive.ql.reexec.ReExecDriver.run(ReExecDriver.java:214)
at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:239)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:188)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:402)
at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:821)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:759)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:683)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.util.RunJar.run(RunJar.java:318)
at org.apache.hadoop.util.RunJar.main(RunJar.java:232)
I have recently started getting following exception, only when junits are being run. In normal flow, the method runs fine. (In fact even the jUnits used to work fine till some time back)
java.lang.NoSuchMethodException:
io.jsonwebtoken.impl.crypto.MacProvider.generateKey(io.jsonwebtoken.SignatureAlgorithm)
Following is the method:
public static String generateDummyJWT(String userName)
{
return Jwts.builder().claim("user_name", StringUtils.defaultString(userName)).setAudience("client1").signWith(Keys.secretKeyFor(SignatureAlgorithm.HS384)).compact();
}
And jjwt versions:
Following is the complete stack trace:
Caused by: java.lang.IllegalStateException: Unable to invoke class
method io.jsonwebtoken.impl.crypto.MacProvider#generateKey. Ensure
the necessary implementation is in the runtime classpath. at
io.jsonwebtoken.lang.Classes.invokeStatic(Classes.java:202) at
io.jsonwebtoken.security.Keys.secretKeyFor(Keys.java:121) at
com.random.util.ServiceSpecificUtil.generateDummyJWT(ServiceSpecificUtil.java:143)
at
com.random.util.ServiceConstants.(ServiceConstants.java:203)
at com.random.MyClass.isUserBranch(MyClass.java:67) at
com.random.MyClass.validName(MyClass.java:93) at
com.random.MyClass.preConditionCheck(MyClass.java:82) at
com.random.MyClass.get(MyClass.java:46) at
com.random.MyClass2.evaluateExpression(MyClass2.java:218) at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.powermock.api.mockito.internal.invocation.MockitoMethodInvocationControl$1.invoke(MockitoMethodInvocationControl.java:243)
at
org.mockito.internal.invocation.realmethod.CleanTraceRealMethod.invoke(CleanTraceRealMethod.java:30)
at
org.mockito.internal.invocation.InvocationImpl.callRealMethod(InvocationImpl.java:112)
at
org.mockito.internal.stubbing.answers.CallsRealMethods.answer(CallsRealMethods.java:41)
at
org.mockito.internal.handler.MockHandlerImpl.handle(MockHandlerImpl.java:93)
at
org.powermock.api.mockito.internal.invocation.MockitoMethodInvocationControl.performIntercept(MockitoMethodInvocationControl.java:266)
at
org.powermock.api.mockito.internal.invocation.MockitoMethodInvocationControl.invoke(MockitoMethodInvocationControl.java:192)
at org.powermock.core.MockGateway.doMethodCall(MockGateway.java:132)
at org.powermock.core.MockGateway.methodCall(MockGateway.java:63) at
com.random.MyClass2.evaluateExpression(MyClass2.java) at
com.random.MyClass2.isPermitted(MyClass2.java:107) at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.powermock.api.mockito.internal.invocation.MockitoMethodInvocationControl$1.invoke(MockitoMethodInvocationControl.java:243)
at
org.mockito.internal.invocation.realmethod.CleanTraceRealMethod.invoke(CleanTraceRealMethod.java:30)
at
org.mockito.internal.invocation.InvocationImpl.callRealMethod(InvocationImpl.java:112)
at
org.mockito.internal.stubbing.answers.CallsRealMethods.answer(CallsRealMethods.java:41)
at
org.mockito.internal.handler.MockHandlerImpl.handle(MockHandlerImpl.java:93)
at
org.powermock.api.mockito.internal.invocation.MockitoMethodInvocationControl.performIntercept(MockitoMethodInvocationControl.java:266)
at
org.powermock.api.mockito.internal.invocation.MockitoMethodInvocationControl.invoke(MockitoMethodInvocationControl.java:192)
... 32 more Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
io.jsonwebtoken.lang.Classes.invokeStatic(Classes.java:198) ... 66
more Caused by: java.lang.IllegalStateException: The HmacSHA384
algorithm is not available. This should never happen on JDK 7 or
later - please report this to the JJWT developers. at
io.jsonwebtoken.impl.crypto.MacProvider.generateKey(MacProvider.java:94)
at
io.jsonwebtoken.impl.crypto.MacProvider.generateKey(MacProvider.java:63)
... 71 more Caused by: java.security.NoSuchAlgorithmException:
HmacSHA384 KeyGenerator not available at
javax.crypto.KeyGenerator.(KeyGenerator.java:169) at
javax.crypto.KeyGenerator.getInstance(KeyGenerator.java:223) at
io.jsonwebtoken.impl.crypto.MacProvider.generateKey(MacProvider.java:92)
... 72 more
I was able to resolve my problem.
Someone in the team had added the call to above function while initializing a static final variable like this:
public static String TOKEN_GUEST = ServiceSpecificUtil.generateDummyJWT(USERNAME);
Now, it seems that access to the java.security packges generally does not work well with PowerMock due to heavy use of reflections & byte code manipulations:
Although I had referred this SO post and tried the suggested solution of using
#PowerMockIgnore like:
#PowerMockIgnore({"org.apache.http.conn.ssl.*", "javax.net.ssl.*" , "javax.crypto.*"})
and that might be helpful in preventing errors when above function was called from another function. But it was not preventing errors in static variable initialization.
public static String TOKEN_GUEST = ServiceSpecificUtil.generateDummyJWT(USERNAME);
I will update this post when I dig deeper as to why the error was coming only in case of static variable initialization and not when ServiceSpecificUtil.generateDummyJWT(USERNAME) was being called from another function.
Please, before pointing that this is duplicate of What is a NullPointerException, and how do I fix it?, read the post to the end, as this is prepared as adviced on the mentioned site!
I moved my app from Wildfly 8 to Wildfly 10 and to my suprise I've got NullPointerException in place of where in my opinion it shouldn't be.
Piece of code of AdmUserCrud.java - update() method:
119: inst.setRoles(roles);
120: if (inst.getAllowIp()!=null && inst.getAllowIp().equals(""))
121: inst.setAllowIp(null);
Error:
Caused by: java.lang.NullPointerException
at com.i4u.qla.action.setting.AdmUserCrud.update(AdmUserCrud.java:120)
at com.i4u.qla.action.setting.AdmUserCrud$Proxy$_$$_WeldSubclass.update$$super(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.jboss.weld.interceptor.proxy.TerminalAroundInvokeInvocationContext.proceedInternal(TerminalAroundInvokeInvocationContext.java:49)
at org.jboss.weld.interceptor.proxy.AroundInvokeInvocationContext.proceed(AroundInvokeInvocationContext.java:77)
at com.arjuna.ats.jta.cdi.transactional.TransactionalInterceptorBase.invokeInOurTx(TransactionalInterceptorBase.java:117)
at com.arjuna.ats.jta.cdi.transactional.TransactionalInterceptorRequired.doIntercept(TransactionalInterceptorRequired.java:53)
at com.arjuna.ats.jta.cdi.transactional.TransactionalInterceptorBase.intercept(TransactionalInterceptorBase.java:76)
at com.arjuna.ats.jta.cdi.transactional.TransactionalInterceptorRequired.intercept(TransactionalInterceptorRequired.java:47)
at sun.reflect.GeneratedMethodAccessor125.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.jboss.weld.interceptor.reader.SimpleInterceptorInvocation$SimpleMethodInvocation.invoke(SimpleInterceptorInvocation.java:74)
at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeAroundInvoke(InterceptorMethodHandler.java:84)
at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.executeInterception(InterceptorMethodHandler.java:72)
at org.jboss.weld.interceptor.proxy.InterceptorMethodHandler.invoke(InterceptorMethodHandler.java:56)
at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:79)
at org.jboss.weld.bean.proxy.CombinedInterceptorAndDecoratorStackMethodHandler.invoke(CombinedInterceptorAndDecoratorStackMethodHandler.java:68)
at com.i4u.qla.action.setting.AdmUserCrud$Proxy$_$$_WeldSubclass.update(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at javax.el.ELUtil.invokeMethod(ELUtil.java:300)
at javax.el.BeanELResolver.invoke(BeanELResolver.java:415)
at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:256)
at com.sun.el.parser.AstValue.invoke(AstValue.java:285)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
... 59 more
Line 119 (and not visible lines above) assures that inst object is not null. So why line 120 raises the NullPointer error?
I'm really confused.
It might be the case that the inst.getAllowIp() returns different results on subsequent calls. So when it does first part of the if:
(inst.getAllowIp()!=null && ...
it might result some value, and a while later...
.. && inst.getAllowIp().equals("") )
might already be a null.
One way to prevent that (although it might not be exactly what you need) is to get the value only once, e.g. something along the lines of
inst.setRoles(roles);
String currentIp = inst.getAllowIp();
if (currentIp!=null && currentIp.equals(""))
...
In general I don't think it has any direct connection to Wildfly version changing.
I'm trying to load the data into pig and dump the same data on to the console. I did without any errors in Cloudera sandbox using following commands.
raw_data = LOAD 'hdfs:/user/cloudera/sampledata' USING PigStorage(',') AS (
custno:chararray,
firstname:chararray,
lastname:chararray,
age:int,
profession:chararray
);
dump raw_data;
it dumps all the data in sampledata file.
Trying to do the same in MapR cluster with the following commands.
raw_data = LOAD '/hdfspath/input' USING PigStorage(',') AS (
custno:chararray,
firstname:chararray,
lastname:chararray,
age:int,
profession:chararray
);
dump raw_data;
Getting the following error.
(RemoteException): org.apache.hadoop.ipc.RemoteException: java.io.IOException: java.lang.IllegalArgumentException: There is no queue named default
ERROR org.apache.hadoop.ipc.RPC - FailoverProxy: Failing this Call: getQueueAdmins for error(RemoteException): org.apache.hadoop.ipc.RemoteException: java.io.IOException: java.lang.IllegalArgumentException: There is no queue named default
at org.apache.hadoop.mapred.QueueManager.getQueueACL(QueueManager.java:413)
at org.apache.hadoop.mapred.JobTracker.getQueueAdmins(JobTracker.java:5346)
at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:993)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1326)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1322)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1127)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1320)
ERROR 2997: Unable to recreate exception from backend error: org.apache.hadoop.ipc.RemoteException: java.io.IOException: java.lang.IllegalArgumentException: There is no queue named default
at org.apache.hadoop.mapred.QueueManager.getQueueACL(QueueManager.java:413)
at org.apache.hadoop.mapred.JobTracker.getQueueAdmins(JobTracker.java:5346)
at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:993)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1326)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1322)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1127)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1320)
at org.apache.hadoop.ipc.Client.call(Client.java:1095)
at org.apache.hadoop.ipc.Client.call(Client.java:1041)
at org.apache.hadoop.ipc.RPC$FailoverInvoker.invoke(RPC.java:540)
at org.apache.hadoop.mapred.$Proxy0.getQueueAdmins(Unknown Source)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:939)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:885)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1127)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:885)
at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:859)
at org.apache.hadoop.mapred.jobcontrol.Job.submit(Job.java:378)
at org.apache.hadoop.mapred.jobcontrol.JobControl.startReadyJobs(JobControl.java:247)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.pig.backend.hadoop20.PigJobControl.mainLoopAction(PigJobControl.java:157)
at org.apache.pig.backend.hadoop20.PigJobControl.run(PigJobControl.java:134)
at java.lang.Thread.run(Thread.java:724)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher$1.run(MapReduceLauncher.java:257)
Any help please.
Thanks in Advance.
Typically this happens if your scheduler has specific queues created without users assigned, and the user submitting the job doesn't specify any queue name.
If it assumes default queue, and has no permission to use it, you could end up with this error. You can avoid the issue with
export PIG_OPTS=”$PIG_OPTS -Dmapred.job.queue.name=my-queue”
or
pig -Dmapreduce.job.queuename=$queue_name -f path/to/script.pig
When running my GWT/Errai app I get this error message:
00:00:00.000 [ERROR] Unable to load module entry point class
org.jboss.errai.ioc.client.Container (see associated exception for
details) java.lang.RuntimeException: critical error in IOC container
bootstrap at
org.jboss.errai.ioc.client.Container.bootstrapContainer(Container.java:69)
at
org.jboss.errai.ioc.client.Container.onModuleLoad(Container.java:34)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601) at
com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:396) at
com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:200)
at
com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:525)
at
com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:363)
at java.lang.Thread.run(Thread.java:722) Caused by:
java.lang.AssertionError: This UIObject's element is not set; you may
be missing a call to either Composite.initWidget() or
UIObject.setElement() at
com.google.gwt.user.client.ui.UIObject.getElement(UIObject.java:527)
at
org.jboss.errai.ui.shared.TemplateUtil.compositeComponentReplace(TemplateUtil.java:61)
at
org.jboss.errai.ioc.client.BootstrapperImpl$65$1.init(BootstrapperImpl.java:1623)
at
org.jboss.errai.ioc.client.BootstrapperImpl$65$1.init(BootstrapperImpl.java:1)
at
org.jboss.errai.ioc.client.container.CreationalContext.resolveAllProxies(CreationalContext.java:351)
at
org.jboss.errai.ioc.client.container.CreationalContext.finish(CreationalContext.java:312)
at
org.jboss.errai.ioc.client.Container.bootstrapContainer(Container.java:59)
at
org.jboss.errai.ioc.client.Container.onModuleLoad(Container.java:34)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601) at
com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:396) at
com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:200)
at
com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:525)
at
com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:363)
at java.lang.Thread.run(Thread.java:722)
I've already done mvn clean compile package gwt:run
It probably means that you use a Composite on which you did not call initWidget(Widget).
Extract of javadoc for Composite
A type of widget that can **wrap** another widget, hiding the wrapped widget's methods.
If you don't call initWidget(), there is no wrapped widget and it leads to this error message.
It also happens if you extends UiObject without calling setElement() but this is a rare usecase.