src/share/vm/oops/symbol.cpp

rev 10169 : 8149557: Resource mark breaks printing to string stream

@@ -156,13 +156,21 @@
 void Symbol::print_utf8_on(outputStream* st) const {
   st->print("%s", as_C_string());
 }
 
 void Symbol::print_symbol_on(outputStream* st) const {
-  ResourceMark rm;
+  char *s;
   st = st ? st : tty;
-  st->print("%s", as_quoted_ascii());
+  {
+    // ResourceMark may not affect st->print(). If st is a string
+    // stream it could resize, using the same resource arena.
+    ResourceMark rm;
+    s = as_quoted_ascii();
+    s = os::strdup(s);
+  }
+  st->print("%s", s);
+  os::free(s);
 }
 
 char* Symbol::as_quoted_ascii() const {
   const char *ptr = (const char *)&_body[0];
   int quoted_length = UTF8::quoted_ascii_length(ptr, utf8_length());