René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Test generation for an abstract class fails","articleBody":"**Description**\r\n\r\nIf we run test generation for an abstract class, the dialog appears, but further test generation fails.\r\n\r\n**To Reproduce**\r\n\r\nSteps to reproduce the behavior:\r\n\r\n1. Create a Java project\r\n2. Paste this code:\r\n```java\r\nabstract public class AbstractClass {\r\n    int testMe(int x) {\r\n        if (x == 0) {\r\n            throw new IllegalStateException(\"123\");\r\n        }\r\n        return 0;\r\n    }\r\n}\r\n```\r\n3. Run \"Create Tests with UtBot\" action\r\n4. Doesn't matter mocks enabled or not\r\n5. Choose the single method and press \"Generate Tests\" button\r\n\r\n**Expected behavior**\r\n\r\nI see these possible behaviors:\r\n- Prohibit to generate tests for abstract classes completely, so action is disabled, if the caret context class is abstract\r\n- Prohibit to generate tests for abstract classes completely, so popup appears if the user tries to run the action for an abstract class\r\n- Allow to generate tests for abstract classes if mocks are enabled, and initialize an abstract class instance with mocks\r\n\r\nMaybe there are better solutions.\r\n\r\n**Actual behavior**\r\n\r\nAn error popup appears saying nothing about the class is abstract.\r\n\r\n**Visual proofs (screenshots, logs, images)**\r\n\r\n![image](https://user-images.githubusercontent.com/30112817/189054719-e2186048-67dc-4825-b38c-aa012e5ad245.png)","author":{"url":"https://github.com/sergeypospelov","@type":"Person","name":"sergeypospelov"},"datePublished":"2022-09-08T06:55:10.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/873/UTBotJava/issues/873"}