Concrete execution fails for a static method using a static field #711 (#1143)

Author: Markoutte

utbot-framework/src/main/kotlin/org/utbot/engine/UtBotSymbolicEngine.kt

@@ -436,6 +436,10 @@ class UtBotSymbolicEngine(
         var attempts = 0
         val attemptsLimit = UtSettings.fuzzingMaxAttempts
         val hasMethodUnderTestParametersToFuzz = methodUnderTest.parameters.isNotEmpty()
+        if (!hasMethodUnderTestParametersToFuzz && methodUnderTest.isStatic) {
+            // Currently, fuzzer doesn't work with static methods with empty parameters
+            return@flow
+        }
         val fuzzedValues = if (hasMethodUnderTestParametersToFuzz) {
             fuzz(methodUnderTestDescription, modelProvider(defaultModelProviders(defaultIdGenerator)))
         } else {