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No signature of method: grails.plugins.elasticsearch.ElasticSearchResult.isEmpty() is applicable for argument types: () values: [] #67

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BryanWBear opened this issue Jan 1, 2021 · 0 comments
Open

No signature of method: grails.plugins.elasticsearch.ElasticSearchResult.isEmpty() is applicable for argument types: () values: [] #67

BryanWBear opened this issue Jan 1, 2021 · 0 comments

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@BryanWBear
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Steps to Reproduce

Here is a minimal example, mostly just derived from the grails tutorial:

Controller:

@SuppressWarnings('MethodName')
class ContentController extends RestfulController {
    ContentSearchService contentSearchService

    def search(String q) {
        contentSearchService.search(q)
        respond (resp, status: HttpStatus.OK)
    }
}

Search Service:

@CompileStatic
class ContentSearchService {
    ElasticSearchService elasticSearchService

    Map search(String query) {
        println("before search")
        def results = elasticSearchService.search(query, [indices: Content, types: Content, score: true]) as Map 
        println("after search")
        println("these are the results :::::")
        println(results.inspect())
        return results
    }
}

Expected Behaviour

The following should be printed out:

before search
after search
these are the results :::::
<results data>

Actual Behaviour

2021-01-01 11:23:19.491 DEBUG --- [nio-8080-exec-1] g.p.elasticsearch.ElasticSearchService   : Completed search request.
2021-01-01 11:23:19.499 DEBUG --- [nio-8080-exec-1] g.p.elasticsearch.ElasticSearchService   : {"took":829,"timed_out":false,"_shards":{"total":1,"successful":1,"skipped":0,"failed":0},"hits":{"total":{"value":1,"relation":"eq"},"max_score":4.2936306,"hits":[{"_index":"graflo.content_v0","_type":"content","_id":"ff80808176b5e1960176b5ed98f60086","_score":4.2936306,"_source":{"title":"megalomania"}}]}}
2021-01-01 11:23:19.508 DEBUG --- [nio-8080-exec-1] g.p.elasticsearch.ElasticSearchService   : Search returned 1 result(s).
2021-01-01 11:23:19.546 DEBUG --- [nio-8080-exec-1] g.p.elasticsearch.ElasticSearchService   : Adding score information to results.
after search
these are the results :::::
2021-01-01 11:23:19.615 ERROR --- [nio-8080-exec-1] o.g.web.errors.GrailsExceptionResolver   : MissingMethodException occurred when processing request: [GET] /search/megalomania
No signature of method: grails.plugins.elasticsearch.ElasticSearchResult.isEmpty() is applicable for argument types: () values: []
Possible solutions: identity(groovy.lang.Closure), dump(), inspect(). Stacktrace follows:

java.lang.reflect.InvocationTargetException: null
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at org.grails.core.DefaultGrailsControllerClass$ReflectionInvoker.invoke(DefaultGrailsControllerClass.java:211)
        at org.grails.core.DefaultGrailsControllerClass.invoke(DefaultGrailsControllerClass.java:188)
        at org.grails.web.mapping.mvc.UrlMappingsInfoHandlerAdapter.handle(UrlMappingsInfoHandlerAdapter.groovy:90)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
        at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
        at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:88)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.grails.web.servlet.mvc.GrailsWebRequestFilter.doFilterInternal(GrailsWebRequestFilter.java:77)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.grails.web.filters.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:67)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:114)
        at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:104)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:97)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367)
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1639)
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: groovy.lang.MissingMethodException: No signature of method: grails.plugins.elasticsearch.ElasticSearchResult.isEmpty() is applicable for argument types: () values: []
Possible solutions: identity(groovy.lang.Closure), dump(), inspect()
        at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:70)
        at graflo.ContentSearchService$search.call(Unknown Source)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:115)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:127)
        at graflo.ContentController.search(ContentController.groovy:29)
        at graflo.ContentController.search(ContentController.groovy)
        ... 60 common frames omitted

Thoughts

The stacktrace is pretty unhelpful. I am new to Grails but the mind-boggling thing here is that the search seems to complete successfully, yet the error happens afterwards. I'm assuming in the print statement? I wonder if I am missing something obvious. Thanks in advance for your help!

Environment Information

  • Operating System: Mac
  • GORM Version: 7.0.2.RELEASE
  • Grails Version: 4.0.3
  • JDK Version: 15.0.1
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@BryanWBear