--- old/src/share/vm/services/diagnosticArgument.cpp	2019-02-15 19:02:47.450483257 +0300
+++ new/src/share/vm/services/diagnosticArgument.cpp	2019-02-15 19:02:47.350486748 +0300
@@ -280,7 +280,7 @@
                                                   size_t len, TRAPS) {
   if (str == NULL) {
     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
-              "Integer parsing error nanotime value: syntax error");
+               "Parsing error memory size value: syntax error, value is null\n");
   }
 
   if (*str == '-') {