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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Cannot save tests generation report: error occurred 'List is empty., reason: java.util.NoSuchElementException","articleBody":"**Description**\r\n\r\nWhen tests are not generated stacktrace shown instead of user friendly message.\r\n\r\n**To Reproduce**\r\nIDEA: 2022.2.2\r\nUTBot: [build  2022.10.395](https://github.com/UnitTestBot/UTBotJava/actions/runs/3188111784)\r\nSteps to reproduce the behavior:\r\n\r\n1. Open `org.utbot.examples.algorithms.Graph` from UTBot Java project\r\n2. Try to generate tests with `Test generation timeout` set to 1 s\r\n3. When first dialog `Failed to generate unit tests for class Graph` opened, click 'OK' \r\n\r\n**Expected behavior**\r\n* No more error dialogs shown(requested in #980) or user friendly messages shown to user (problem of this case)\r\n* No tests are generated.\r\n\r\n**Actual behavior**\r\n* Empty test class created\r\n* User gets dialog which contains stacktrace:\r\n![image](https://user-images.githubusercontent.com/10035839/194055660-d16bbba9-47b2-4a55-b1d5-5c5beae72420.png)\r\n\r\n```stacktrace\r\nCannot save tests generation report: error occurred 'List is empty., reason: java.util.NoSuchElementException: List is empty. \r\nat kotlin.collections.CollectionsKt___CollectionsKt.first(_Collections.kt:214) \r\nat org.utbot.framework.process.EngineMainKt$setup$10.invoke(EngineMain.kt:215) \r\nat org.utbot.framework.process.EngineMainKt$setup$10.invoke(EngineMain.kt:186) \r\nat org.utbot.rd.CallsSynchronizer$measureExecutionForTermination$2$1$1.invoke(ClientProcessUtil.kt:79) \r\nat org.utbot.rd.CallsSynchronizer$measureExecutionForTermination$1.invokeSuspend(ClientProcessUtil.kt:69) \r\nat kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33) \r\nat kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106) \r\nat kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:284) \r\nat kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:85) \r\nat kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:59) \r\nat kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source) \r\nat kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:38) \r\nat kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source) \r\nat org.utbot.rd.CallsSynchronizer.measureExecutionForTermination(ClientProcessUtil.kt:66) \r\nat org.utbot.rd.CallsSynchronizer$measureExecutionForTermination$2$1.invokeSuspend(ClientProcessUtil.kt:78) \r\nat kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33) \r\nat kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106) \r\nat kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:284) \r\nat kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:85) \r\nat kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:59) \r\nat kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source) \r\nat kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:38) \r\nat kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source) \r\nat org.utbot.rd.CallsSynchronizer$measureExecutionForTermination$2.invoke(ClientProcessUtil.kt:77) \r\nat com.jetbrains.rd.framework.IRdEndpoint$set$1.invoke(TaskInterfaces.kt:182) \r\nat com.jetbrains.rd.framework.IRdEndpoint$set$1.invoke(TaskInterfaces.kt:182) \r\nat com.jetbrains.rd.framework.impl.RdCall.onWireReceived(RdTask.kt:360) \r\nat com.jetbrains.rd.framework.MessageBroker$invoke$2$2.invoke(MessageBroker.kt:57) \r\nat com.jetbrains.rd.framework.MessageBroker$invoke$2$2.invoke(MessageBroker.kt:56) \r\nat com.jetbrains.rd.framework.impl.ProtocolContexts.readMessageContextAndInvoke(ProtocolContexts.kt:148) \r\nat com.jetbrains.rd.framework.MessageBroker$invoke$2.invoke(MessageBroker.kt:56) \r\nat com.jetbrains.rd.framework.MessageBroker$invoke$2.invoke(MessageBroker.kt:54) \r\nat com.jetbrains.rd.util.threading.SingleThreadSchedulerBase.queue$lambda-3(SingleThreadScheduler.kt:41) \r\nat java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) \r\nat java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) \r\nat java.lang.Thread.run(Thread.java:750) \r\n```\r\n\r\n\r\n**Additional context**\r\nCurrent behavior in release branch described in #980, where both dialogs shown. \r\n","author":{"url":"https://github.com/tyuldashev","@type":"Person","name":"tyuldashev"},"datePublished":"2022-10-05T12:06:18.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/1098/UTBotJava/issues/1098"}