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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"java.lang.NoClassDefFoundError: models/xxx error on 20.0 graphql-java library version","articleBody":"I use graphql-java with Play Framework 2.8.19 and Java 11 (was trying also with Java 8, same error)\r\nin build.sbt i add dependency like this:\r\nlibraryDependencies ++= \"com.graphql-java\" % \"graphql-java\" % \"20.0\"\r\n\r\nWhen application is started, and after i send my graphQL request, i've got an following error in console\r\nIf i set my dependency version to 18.3, everything is fine and i've got an result like:\r\n{\r\n    \"data\": {\r\n        \"productById\": {\r\n            \"id\": \"1\",\r\n            \"name\": \"ProductName\",\r\n            \"details\": [\r\n                {\r\n                    \"id\": \"1\",\r\n                    \"description\": \"The product detailed description.\",\r\n                    \"display\": \"display\",\r\n                    \"name\": \"product details\"\r\n                }\r\n            ]\r\n        }\r\n    }\r\n}\r\n\r\nActually trying to start this example, but with upgraded library to 20.0, latest, version: https://github.com/manojgodara/GraphQLPlayFramework\r\n\r\nERROR message on version 20.0:\r\nERROR notprivacysafe.graphql.GraphQL  Execution '4e7d7de4-89ce-4518-a389-5a3ab105101c' threw exception when executing : query : 'query test($id: String!) {\r\n  productById(id: $id) {\r\n    id\r\n    name\r\n    details {\r\n        id\r\n        description\r\n        display\r\n        name\r\n    }\r\n  }\r\n}'. variables '{id=1}'\r\n\r\n\r\n```\r\njava.util.concurrent.CompletionException: java.lang.NoClassDefFoundError: models/Product\r\n\tat java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)\r\n\tat java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)\r\n\tat java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:783)\r\n\tat java.util.concurrent.CompletableFuture.uniWhenCompleteStage(CompletableFuture.java:792)\r\n\tat java.util.concurrent.CompletableFuture.whenComplete(CompletableFuture.java:2153)\r\n\tat graphql.execution.Execution.executeOperation(Execution.java:171)\r\n\tat graphql.execution.Execution.execute(Execution.java:102)\r\n\tat graphql.GraphQL.execute(GraphQL.java:557)\r\n\tat graphql.GraphQL.lambda$parseValidateAndExecute$11(GraphQL.java:476)\r\n\tat java.util.concurrent.CompletableFuture.uniComposeStage(CompletableFuture.java:995)\r\n\tat java.util.concurrent.CompletableFuture.thenCompose(CompletableFuture.java:2137)\r\n\tat graphql.GraphQL.parseValidateAndExecute(GraphQL.java:471)\r\n\tat graphql.GraphQL.executeAsync(GraphQL.java:439)\r\n\tat controllers.GraphQLController.query(GraphQLController.java:118)\r\n\tat controllers.GraphQLController.postHandler(GraphQLController.java:86)\r\n\tat router.Routes$$anonfun$routes$1.$anonfun$applyOrElse$3(Routes.scala:73)\r\n\tat play.core.routing.HandlerInvokerFactory$$anon$9.resultCall(HandlerInvoker.scala:154)\r\n\tat play.core.routing.HandlerInvokerFactory$JavaActionInvokerFactory$$anon$3$$anon$4$$anon$5.invocation(HandlerInvoker.scala:115)\r\n\tat play.core.j.JavaAction$$anon$1.call(JavaAction.scala:119)\r\n\tat play.http.DefaultActionCreator$1.call(DefaultActionCreator.java:33)\r\n\tat play.core.j.JavaAction.$anonfun$apply$8(JavaAction.scala:175)\r\n\tat scala.concurrent.Future$.$anonfun$apply$1(Future.scala:659)\r\n\tat scala.util.Success.$anonfun$map$1(Try.scala:255)\r\n\tat scala.util.Success.map(Try.scala:213)\r\n\tat scala.concurrent.Future.$anonfun$map$1(Future.scala:292)\r\n\tat scala.concurrent.impl.Promise.liftedTree1$1(Promise.scala:33)\r\n\tat scala.concurrent.impl.Promise.$anonfun$transform$1(Promise.scala:33)\r\n\tat scala.concurrent.impl.CallbackRunnable.run(Promise.scala:64)\r\n\tat play.core.j.HttpExecutionContext.$anonfun$execute$1(HttpExecutionContext.scala:64)\r\n\tat play.api.libs.streams.Execution$trampoline$.execute(Execution.scala:70)\r\n\tat play.core.j.HttpExecutionContext.execute(HttpExecutionContext.scala:59)\r\n\tat scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:72)\r\n\tat scala.concurrent.impl.Promise$KeptPromise$Kept.onComplete(Promise.scala:372)\r\n\tat scala.concurrent.impl.Promise$KeptPromise$Kept.onComplete$(Promise.scala:371)\r\n\tat scala.concurrent.impl.Promise$KeptPromise$Successful.onComplete(Promise.scala:379)\r\n\tat scala.concurrent.impl.Promise.transform(Promise.scala:33)\r\n\tat scala.concurrent.impl.Promise.transform$(Promise.scala:31)\r\n\tat scala.concurrent.impl.Promise$KeptPromise$Successful.transform(Promise.scala:379)\r\n\tat scala.concurrent.Future.map(Future.scala:292)\r\n\tat scala.concurrent.Future.map$(Future.scala:292)\r\n\tat scala.concurrent.impl.Promise$KeptPromise$Successful.map(Promise.scala:379)\r\n\tat scala.concurrent.Future$.apply(Future.scala:659)\r\n\tat play.core.j.JavaAction.apply(JavaAction.scala:176)\r\n\tat play.api.mvc.Action.$anonfun$apply$4(Action.scala:82)\r\n\tat scala.concurrent.Future.$anonfun$flatMap$1(Future.scala:307)\r\n\tat scala.concurrent.impl.Promise.$anonfun$transformWith$1(Promise.scala:41)\r\n\tat scala.concurrent.impl.CallbackRunnable.run(Promise.scala:64)\r\n\tat akka.dispatch.BatchingExecutor$AbstractBatch.processBatch(BatchingExecutor.scala:63)\r\n\tat akka.dispatch.BatchingExecutor$BlockableBatch.$anonfun$run$1(BatchingExecutor.scala:100)\r\n\tat scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)\r\n\tat scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:85)\r\n\tat akka.dispatch.BatchingExecutor$BlockableBatch.run(BatchingExecutor.scala:100)\r\n\tat akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:49)\r\n\tat akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(ForkJoinExecutorConfigurator.scala:48)\r\n\tat java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)\r\n\tat java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1067)\r\n\tat java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1703)\r\n\tat java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:172)\r\nCaused by: java.lang.NoClassDefFoundError: models/Product\r\n\tat graphql.schema.PropertyFetchingImpl.getPropertyValue(PropertyFetchingImpl.java:114)\r\n\tat graphql.schema.PropertyDataFetcherHelper.getPropertyValue(PropertyDataFetcherHelper.java:22)\r\n\tat graphql.schema.PropertyDataFetcher.getImpl(PropertyDataFetcher.java:131)\r\n\tat graphql.schema.PropertyDataFetcher.get(PropertyDataFetcher.java:112)\r\n\tat graphql.execution.ExecutionStrategy.invokeDataFetcher(ExecutionStrategy.java:307)\r\n\tat graphql.execution.ExecutionStrategy.fetchField(ExecutionStrategy.java:286)\r\n\tat graphql.execution.ExecutionStrategy.resolveFieldWithInfo(ExecutionStrategy.java:212)\r\n\tat graphql.execution.AsyncExecutionStrategy.execute(AsyncExecutionStrategy.java:55)\r\n\tat graphql.execution.ExecutionStrategy.completeValueForObject(ExecutionStrategy.java:680)\r\n\tat graphql.execution.ExecutionStrategy.completeValue(ExecutionStrategy.java:472)\r\n\tat graphql.execution.ExecutionStrategy.completeField(ExecutionStrategy.java:422)\r\n\tat graphql.execution.ExecutionStrategy.lambda$resolveFieldWithInfo$1(ExecutionStrategy.java:214)\r\n\tat java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:616)\r\n\tat java.util.concurrent.CompletableFuture.uniApplyStage(CompletableFuture.java:628)\r\n\tat java.util.concurrent.CompletableFuture.thenApply(CompletableFuture.java:1996)\r\n\tat graphql.execution.ExecutionStrategy.resolveFieldWithInfo(ExecutionStrategy.java:213)\r\n\tat graphql.execution.AsyncExecutionStrategy.execute(AsyncExecutionStrategy.java:55)\r\n\tat graphql.execution.Execution.executeOperation(Execution.java:156)\r\n\t... 52 common frames omitted\r\nCaused by: java.lang.ClassNotFoundException: models.Product\r\n\tat java.net.URLClassLoader.findClass(URLClassLoader.java:382)\r\n\tat java.lang.ClassLoader.loadClass(ClassLoader.java:418)\r\n\tat java.lang.ClassLoader.loadClass(ClassLoader.java:351)\r\n\t... 70 common frames omitted\r\n```","author":{"url":"https://github.com/SandQuattro","@type":"Person","name":"SandQuattro"},"datePublished":"2023-02-04T20:54:12.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":13},"url":"https://github.com/3086/graphql-java/issues/3086"}