Fix for ASM issue 317555

Issue: SPR-12957

spring-core/src/main/java/org/springframework/asm/MethodWriter.java

@@ -2706,6 +2706,7 @@ class MethodWriter extends MethodVisitor {
                 l = l.successor;
             }
             // Update the offsets in the uninitialized types
+            if (cw.typeTable != null) {
                 for (i = 0; i < cw.typeTable.length; ++i) {
                     Item item = cw.typeTable[i];
                     if (item != null && item.type == ClassWriter.TYPE_UNINIT) {
@@ -2713,6 +2714,7 @@ class MethodWriter extends MethodVisitor {
                                 item.intVal);
                     }
                 }
+            }
             // The stack map frames are not serialized yet, so we don't need
             // to update them. They will be serialized in visitMaxs.
         } else if (frameCount > 0) {