René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"ContestEstimator fails with java.lang.NullPointerException","articleBody":"**Description**\r\n\r\nContestEstimator throws unexpected `java.lang.NullPointerException` and generates empty test class on enums\r\n\r\n**To Reproduce**\r\n\r\nLaunch contestEstimator with `methodFilter = \"com.google.common.base.CaseFormat.*\"` and `projectFilter = null` and 120s time limit\r\n\r\n**Expected behavior**\r\n\r\nTests generated\r\n\r\n**Actual behavior**\r\n\r\n`java.lang.NullPointerException` is thrown and empty test class is generated\r\n\r\n**Visual proofs (screenshots, logs, images)**\r\n\r\nGenerated test file:\r\n```Java\r\npackage com.google.common.base;\r\n\r\npublic class CaseFormatTest {\r\n}\r\n```\r\n\r\nFrom console:\r\n```\r\nException in thread \"SymbolicExecution\" java.lang.NullPointerException: classId.jClass.enumConstants must not be null\r\n\tat org.utbot.fuzzer.providers.EnumModelProvider$generate$1.invokeSuspend(EnumModelProvider.kt:18)\r\n\tat kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)\r\n\tat kotlin.sequences.SequenceBuilderIterator.hasNext(SequenceBuilder.kt:140)\r\n\tat org.utbot.fuzzer.ModelProvider$Combined$generate$1.invokeSuspend(ModelProvider.kt:143)\r\n\tat kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)\r\n\tat kotlin.sequences.SequenceBuilderIterator.hasNext(SequenceBuilder.kt:140)\r\n\tat org.utbot.fuzzer.FuzzerKt.fuzz(Fuzzer.kt:76)\r\n\tat org.utbot.fuzzer.providers.ObjectModelProvider$Companion.fuzzParameters(ObjectModelProvider.kt:173)\r\n\tat org.utbot.fuzzer.providers.ObjectModelProvider$Companion.access$fuzzParameters(ObjectModelProvider.kt:145)\r\n\tat org.utbot.fuzzer.providers.ObjectModelProvider$generate$1.invokeSuspend(ObjectModelProvider.kt:82)\r\n\tat kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)\r\n\tat kotlin.sequences.SequenceBuilderIterator.hasNext(SequenceBuilder.kt:140)\r\n\tat org.utbot.fuzzer.ModelProvider$Combined$generate$1.invokeSuspend(ModelProvider.kt:143)\r\n\tat kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)\r\n\tat kotlin.sequences.SequenceBuilderIterator.hasNext(SequenceBuilder.kt:140)\r\n\tat org.utbot.fuzzer.FuzzerKt.fuzz(Fuzzer.kt:76)\r\n\tat org.utbot.engine.UtBotSymbolicEngine$fuzzing$2.invokeSuspend(UtBotSymbolicEngine.kt:426)\r\n\tat org.utbot.engine.UtBotSymbolicEngine$fuzzing$2.invoke(UtBotSymbolicEngine.kt)\r\n\tat kotlinx.coroutines.flow.SafeFlow.collectSafely(Builders.kt:61)\r\n\tat kotlinx.coroutines.flow.AbstractFlow.collect(Flow.kt:212)\r\n\tat kotlinx.coroutines.flow.FlowKt__MergeKt$flattenConcat$$inlined$unsafeFlow$1$lambda$1.emit(Collect.kt:134)\r\n\tat kotlinx.coroutines.flow.FlowKt__BuildersKt$flowOf$$inlined$unsafeFlow$1.collect(SafeCollector.common.kt:114)\r\n\tat kotlinx.coroutines.flow.FlowKt__MergeKt$flattenConcat$$inlined$unsafeFlow$1.collect(SafeCollector.common.kt:114)\r\n\tat org.utbot.contest.ContestKt$runGeneration$1$invokeSuspend$$inlined$bracket$lambda$1$1.invokeSuspend(Contest.kt:519)\r\n\tat kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)\r\n\tat kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)\r\n```\r\n\r\n**Additional context**\r\n\r\nWas working ok in main on 11.07.2022\r\n","author":{"url":"https://github.com/volivan239","@type":"Person","name":"volivan239"},"datePublished":"2022-07-19T16:14:07.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/558/UTBotJava/issues/558"}