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src/hotspot/share/oops/typeArrayKlass.cpp

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rev 49800 : 8201593: Print array length in ArrayIndexOutOfBoundsException.

@@ -136,16 +136,35 @@
     THROW(vmSymbols::java_lang_ArrayStoreException());
   }
 
   // Check is all offsets and lengths are non negative
   if (src_pos < 0 || dst_pos < 0 || length < 0) {
-    THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
+    // Pass specific exception reason.
+    ResourceMark rm;
+    stringStream ss;
+    if (src_pos < 0) {
+      ss.print("while trying to copy from index %i of a type array with length %i", src_pos, s->length());
+    } else if (dst_pos < 0) {
+      ss.print("while trying to copy to index %i of a type array with length %i", dst_pos, d->length());
+    } else {
+      ss.print("while trying to copy a negative range %i from a type array with length %i to a type array with length %i",
+        length, s->length(), d->length());
+    }
+    THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), ss.as_string());
   }
   // Check if the ranges are valid
   if  ( (((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length())
      || (((unsigned int) length + (unsigned int) dst_pos) > (unsigned int) d->length()) ) {
-    THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
+    // Pass specific exception reason.
+    ResourceMark rm;
+    stringStream ss;
+    if (((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length()) {
+      ss.print("while trying to copy from index %u of a type array with length %i", (unsigned int) length + (unsigned int) src_pos, s->length());
+    } else {
+      ss.print("while trying to copy to index %u of a type array with length %i", (unsigned int) length + (unsigned int) dst_pos, d->length());
+    }
+    THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), ss.as_string());
   }
   // Check zero copy
   if (length == 0)
     return;
 
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