NullPointerException by com.haulmont.studio.ui

Support
#1

Hello,
In the studio, when in the class select enum, there is an error:


&#91;09:43:25.334&#93; Exception has been thrown by com.haulmont.studio.ui.app.a@577912a5:<b>&#91;09:43:25.335&#93;</b> java.lang.NullPointerExceptionat com.haulmont.studio.ui.d.a.a.a(SourceFile:272)at com.haulmont.studio.ui.d.a.a.l(SourceFile:259)at com.haulmont.studio.ui.d.a.a.k(SourceFile:230)at com.haulmont.studio.ui.d.a.a.<init>(SourceFile:147)at com.haulmont.studio.ui.d.d.c.valueChange(SourceFile:197)at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:497)at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:510)at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:200)at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:163)at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1037)at com.vaadin.ui.AbstractField.fireValueChange(AbstractField.java:1181)at com.vaadin.ui.AbstractField.setValue(AbstractField.java:580)at com.vaadin.ui.AbstractSelect.setValue(AbstractSelect.java:742)at com.vaadin.ui.AbstractField.setValue(AbstractField.java:474)at com.vaadin.ui.AbstractSelect.changeVariables(AbstractSelect.java:552)at com.vaadin.ui.Table.changeVariables(Table.java:3025)at com.vaadin.server.communication.ServerRpcHandler.changeVariables(ServerRpcHandler.java:615) ...<b>&#91;09:43:25.344&#93;</b> Unexpected errorjava.lang.NullPointerException

CLASS


@Column(name = "STATE")
protected Integer state;

ENUM


<li>
public enum ActivityMonthlyStateEnum implements EnumClass<Integer> {
</li><li> NONE(0), 
</li><li> READY(1), 
</li><li> APPROVED(2), 
</li><li> LOCKED(3);
</li><li> private Integer id; 
</li><li> ActivityMonthlyStateEnum(Integer value) {
</li><li> this.id = value;  } 
</li><li> public Integer getId() { 
</li><li> return id; 
</li><li> } 
</li><li> @Nullable 
</li><li> public static ActivityMonthlyStateEnum fromId(Integer id) { 
</li><li> for (ActivityMonthlyStateEnum at : ActivityMonthlyStateEnum.values()) {
</li><li> if (at.getId().equals(id)) {                return at;            }        } 
</li><li> return null;    }}
</li>

#2

When I try to remove the enum, studio crashed with an error

Error 500 Server Error.html (10.5K)

#3

What Studio version do you use?

#4

6.5.0

#5

studio version 6.4 works fine

#6

Unfortunately, we cannot reproduce the problem. Could you share your project (e.g. send a link to info@cuba-platform.com) or create a test project?