René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Error in Fuzzing test generation for code producing `Function\u003cString, Integer\u003e`","articleBody":"**Description**\r\n\r\n`Array has more than one element` error in Errors report for \r\nFuzzing test generation for code producing `Function\u003cString, Integer\u003e`\r\n\r\n**To Reproduce**\r\n\r\n1. Run a project with JDK 11 in IntelliJ Idea \r\n2. Install [one of the latest plugins from main](https://github.com/UnitTestBot/UTBotJava/actions/runs/3538142501)\r\n3. Set Fuzzing only mode\r\n4. Add a Java class with the following function:\r\n\r\n```java\r\n    Function\u003cString, Integer\u003e returnLambda(int buffer) {\r\n        return s -\u003e s.length() + buffer;\r\n    }\r\n\r\n```\r\n\r\n5. Generate tests for it\r\n\r\n**Expected behavior**\r\n\r\nTests are supposed to be generated.\r\n\r\n**Actual behavior**\r\n\r\nAn error test is generated with information about errors in the concrete executor:\r\n`Array has more than one element`\r\nNo exceptions are present in concrete executor log , RD engine logs, idea.log\r\nOnly one about failed to save test report.\r\n\r\n**Visual proofs (screenshots, logs, images)**\r\n\r\n~~~java\r\nimport java.util.function.Function;\r\n\r\npublic final class LambdaTest {\r\n    ///region Test suites for executable org.utbot.examples.lambda.Lambda.returnLambda\r\n\r\n    ///region Errors report for returnLambda\r\n\r\n    public void testReturnLambda_errors() {\r\n        // Couldn't generate some tests. List of errors:\r\n        // \r\n        // 1 occurrences of:\r\n        // Array has more than one element.\r\n\r\n    }\r\n    ///endregion\r\n\r\n    ///endregion\r\n}\r\n~~~\r\n\r\n**Environment**\r\n\r\nWindows 10 Pro\r\nIntelliJ IDEA 2022.2.3\r\nGradle , JDK 11\r\n\r\n**Additional context**\r\n\r\nIF Symbolic execution is turned on - a successful test is generated besides the error on.\r\n","author":{"url":"https://github.com/alisevych","@type":"Person","name":"alisevych"},"datePublished":"2022-11-24T14:50:20.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/1419/UTBotJava/issues/1419"}