KT-40359 Catch NumberFormatException during literal conversion

- Instead of failing J2K conversion completely, insert TODO expression
to the resulting code (it is better to have a converted code with TODO
than to have nothing at all)
- See EA-210233 for similar exceptions
- ^KT-40359 Fixed

nj2k/src/org/jetbrains/kotlin/nj2k/conversions/LiteralConversion.kt

@@ -6,16 +6,35 @@
 package org.jetbrains.kotlin.nj2k.conversions
 
 
+import org.jetbrains.annotations.NonNls
 import org.jetbrains.kotlin.nj2k.NewJ2kConverterContext
-import org.jetbrains.kotlin.nj2k.tree.JKLiteralExpression
-import org.jetbrains.kotlin.nj2k.tree.JKTreeElement
+import org.jetbrains.kotlin.nj2k.tree.*
 import java.math.BigInteger
 
 class LiteralConversion(context: NewJ2kConverterContext) : RecursiveApplicableConversionBase(context) {
     override fun applyToElement(element: JKTreeElement): JKTreeElement {
         if (element !is JKLiteralExpression) return recurse(element)
-        element.convertLiteral()
-        return recurse(element)
+
+        val convertedElement = try {
+            element.apply { convertLiteral() }
+        } catch (_: NumberFormatException) {
+            createTodoCall(cannotConvertLiteralMessage(element))
+        }
+
+        return recurse(convertedElement)
+    }
+
+    private fun createTodoCall(@NonNls message: String): JKCallExpressionImpl {
+        val todoMethodSymbol = symbolProvider.provideMethodSymbol("kotlin.TODO")
+        val todoMessageArgument = JKArgumentImpl(JKLiteralExpression("\"$message\"", JKLiteralExpression.LiteralType.STRING))
+
+        return JKCallExpressionImpl(todoMethodSymbol, JKArgumentList(todoMessageArgument))
+    }
+
+    private fun cannotConvertLiteralMessage(element: JKLiteralExpression): String {
+        val literalType = element.type.toString().toLowerCase()
+        val literalValue = element.literal
+        return "Could not convert $literalType literal '$literalValue' to Kotlin"
     }
 
     private fun JKLiteralExpression.convertLiteral() {

nj2k/testData/newJ2k/literalExpression/octal.java

@@ -1,8 +1,12 @@
 class Test {
   int negativeOctalInt = 023432423432;
   int octalInt = 07432423432;
+  int invalidOctalInt = 08;
+
   long negativeOctalLong = 01777777777777777777777L;
   long octalLong = 0777777777777777777777L;
+  long invalidOctalLong = 08L;
+
   short octalShort = 047777;
   byte octalByte = 077;
 }

nj2k/testData/newJ2k/literalExpression/octal.kt

@@ -1,8 +1,10 @@
 internal class Test {
     var negativeOctalInt = -1670764774
     var octalInt = 1013589786
+    var invalidOctalInt: Int = TODO("Could not convert int literal '08' to Kotlin")
     var negativeOctalLong = -1L
     var octalLong = 9223372036854775807L
+    var invalidOctalLong: Long = TODO("Could not convert long literal '08L' to Kotlin")
     var octalShort: Short = 20479
     var octalByte: Byte = 63
 }