Void class literal fix (hotfix-6)

Author: JonathanxD

src/main/kotlin/com/github/jonathanxd/codeapi/bytecode/util/LiteralUtil.kt

@@ -27,6 +27,7 @@
  */
 package com.github.jonathanxd.codeapi.bytecode.util
 
+import com.github.jonathanxd.codeapi.CodeAPI
 import com.github.jonathanxd.codeapi.Types
 import com.github.jonathanxd.codeapi.literal.Literal
 import com.github.jonathanxd.codeapi.literal.Literals
@@ -89,7 +90,9 @@ object LiteralUtil {
             val type = num.value as CodeType
 
             if(type.isPrimitive) {
-                val wrapperTypeSpec = CodeTypeUtil.codeTypeToBinaryName(type.wrapperType ?: throw IllegalArgumentException("Primitive type '$type' has no wrapper version."))
+                val wrapperType = if(type.`is`(Types.VOID)) CodeAPI.getJavaType(Void::class.java) else type.wrapperType ?: throw IllegalArgumentException("Primitive type '$type' has no wrapper version.")
+
+                val wrapperTypeSpec = CodeTypeUtil.codeTypeToBinaryName(wrapperType)
                 val classType = CodeTypeUtil.toTypeDesc(Types.CLASS)
 
                 mv.visitFieldInsn(Opcodes.GETSTATIC, wrapperTypeSpec, "TYPE", classType)

src/test/java/com/github/jonathanxd/codeapi/test/asm/LiteralBugTest.java

@@ -54,7 +54,7 @@ public void literalBugTest() throws Throwable {
         CodeSource source = sourceOfParts(
                 method(EnumSet.of(PUBLIC), "test", VOID, new CodeParameter[]{},
                         sourceOfParts(
-                                Predefined.invokePrintln(Literals.CLASS(Integer.class))
+                                Predefined.invokePrintln(Literals.CLASS(Void.TYPE))
                         )
                 )
         );

src/test/resources/disassembled/LiteralBugTest_MyClass_Result.class.disassembled

@@ -1,4 +1,4 @@
-md5: f08e583d0e08e79c9171c65bfb8eec6d
+md5: 870d9cb47d22c02f0028537876b6a126
 
 version: Java 8 (52)
 access: ACC_PUBLIC (33)
@@ -13,7 +13,7 @@ public class com.MyClass extends java.lang.Object {
       maxStack: 2, maxLocals: 1 
       Label_0:
         getstatic java.lang.System.out (type: java.io.PrintStream)
-        ldc Ljava/lang/Integer;              // type: java.lang.Class
+        getstatic java.lang.Void.TYPE (type: java.lang.Class)
         invokevirtual java.io.PrintStream.println(java.lang.Object)void (ownerIsInterface: false)
         return
       Label_1: