Hi,
I am working on a custom component developed with talend component kit.
In my UI, I have one field with selection. I tried @Suggestable and also @Proposable to achieve this.
This seems to be working. I get my selection list an I can select one entry. But with both methods I find NullPointerExceptions in the .log file in my studio workspace.
What is wrong here?
My Studio is Open Studio 7.3.1
The version of talend component kit from studio is 1.1.15 and I have set the version in pom also to 1.1.15.
I implemented @Suggestable as follows:
@Option
@Required
@Suggestable(GET_PATH_LIST)
@Documentation("TODO fill the documentation for this parameter")
private String path;
And in @Service:
public static final String GET_PATH_LIST = "getPathList";
@Suggestions(GET_PATH_LIST)
public SuggestionValues getPathList() {
List<SuggestionValues.Item> items = new ArrayList<>();
items.add(new SuggestionValues.Item("/api/rest/v1/locales", "/api/rest/v1/locales"));
items.add(new SuggestionValues.Item("/api/rest/v1/channels", "/api/rest/v1/channels"));
items.add(new SuggestionValues.Item("/api/rest/v1/currencies", "/api/rest/v1/currencies"));
items.add(new SuggestionValues.Item("/api/rest/v1/attributes", "/api/rest/v1/attributes"));
items.add(new SuggestionValues.Item("/api/rest/v1/attributes/{attributeCode}/options", "/api/rest/v1/attributes/{attributeCode}/options"));
items.add(new SuggestionValues.Item("/api/rest/v1/attribute-groups", "/api/rest/v1/attribute-groups"));
items.add(new SuggestionValues.Item("/api/rest/v1/families", "/api/rest/v1/families"));
items.add(new SuggestionValues.Item("/api/rest/v1/products", "/api/rest/v1/products"));
return new SuggestionValues(true, items);
}
What I have read from the docs, this should be OK.
But now I get this NullPointerException:
!ENTRY org.talend.platform.logging 2 0 2020-11-21 21:36:18.616
!MESSAGE 2020-11-21 21:36:18,615 WARN org.talend.sdk.component.studio.logging.JULToOsgiHandler - [org.talend.sdk.component.server.configuration.WebSocketBroadcastSetup$JAXRSEndpoint.onError] Error for session 0
!STACK 0
java.lang.NullPointerException
at org.talend.sdk.component.server.front.memory.AsyncContextImpl.complete(AsyncContextImpl.java:156)
at org.apache.cxf.transport.http.Servlet3ContinuationProvider$Servlet3Continuation.reset(Servlet3ContinuationProvider.java:158)
at org.apache.cxf.transport.http.Servlet3ContinuationProvider.complete(Servlet3ContinuationProvider.java:71)
at org.apache.cxf.transport.http.AbstractHTTPDestination.invokeComplete(AbstractHTTPDestination.java:295)
at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:268)
at org.talend.sdk.component.server.configuration.WebSocketBroadcastSetup$WebSocketDestination.invoke(WebSocketBroadcastSetup.java:516)
at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:234)
at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:208)
at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:160)
at org.talend.sdk.component.server.configuration.WebSocketBroadcastSetup$JAXRSEndpoint.lambda$onOpen$4(WebSocketBroadcastSetup.java:292)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.websocket.pojo.PojoMessageHandlerWholeBase.onMessage(PojoMessageHandlerWholeBase.java:80)
at org.apache.tomcat.websocket.WsFrameBase.sendMessageBinary(WsFrameBase.java:582)
at org.apache.tomcat.websocket.server.WsFrameServer.sendMessageBinary(WsFrameServer.java:131)
at org.apache.tomcat.websocket.WsFrameBase.processDataBinary(WsFrameBase.java:541)
at org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:300)
at org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:133)
at org.apache.tomcat.websocket.server.WsFrameServer.onDataAvailable(WsFrameServer.java:82)
at org.apache.tomcat.websocket.server.WsFrameServer.doOnDataAvailable(WsFrameServer.java:171)
at org.apache.tomcat.websocket.server.WsFrameServer.notifyDataAvailable(WsFrameServer.java:151)
at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.upgradeDispatch(WsHttpUpgradeHandler.java:148)
at org.apache.coyote.http11.upgrade.UpgradeProcessorInternal.dispatch(UpgradeProcessorInternal.java:54)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:53)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1579)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Any Ideas on that?
Best regards,
Schrauber
