Workaround #341

Author: ileasile

jupyter-lib/api/src/main/kotlin/org/jetbrains/kotlinx/jupyter/util/reflecton.kt

@@ -11,5 +11,8 @@ fun KClass<*>.isSubclassOfCatching(superType: KClass<*>): Boolean {
         false
     } catch (e: KotlinReflectionInternalError) {
         false
+    } catch (e: InternalError) {
+        // Workaround for #341
+        false
     }
 }

src/test/kotlin/org/jetbrains/kotlinx/jupyter/test/repl/ReplTests.kt

@@ -415,6 +415,14 @@ class ReplTests : AbstractSingleReplTest() {
         (res as (Int) -> Int)(1) shouldBe 2
     }
 
+    @Test
+    fun testAnonymousObjectRendering() {
+        eval("42")
+        eval("val sim = object : ArrayList<String>() {}")
+        val res = eval("sim").resultValue
+        res.toString() shouldBe "[]"
+    }
+
     @Test
     fun testOutVarRendering() {
         eval("Out").resultValue.shouldNotBeNull()