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diff src/share/vm/oops/method.hpp @ 7176:59c790074993

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8003635: NPG: AsynchGetCallTrace broken by Method* virtual call Summary: Make metaspace::contains be lock free and used to see if something is in metaspace, also compare Method* with vtbl pointer. Reviewed-by: dholmes, sspitsyn, dcubed, jmasa
author coleenp
date Wed, 28 Nov 2012 17:50:21 -0500
parents 18fb7da42534
children 5505fbbae3d3
line wrap: on
line diff
--- a/src/share/vm/oops/method.hpp	Wed Nov 28 08:43:26 2012 -0800
+++ b/src/share/vm/oops/method.hpp	Wed Nov 28 17:50:21 2012 -0500
@@ -169,7 +169,8 @@
                           ConstMethod::MethodType method_type,
                           TRAPS);
 
-  Method() { assert(DumpSharedSpaces || UseSharedSpaces, "only for CDS"); }
+  // CDS and vtbl checking can create an empty Method to get vtbl pointer.
+  Method(){}
 
   // The Method vtable is restored by this call when the Method is in the
   // shared archive.  See patch_klass_vtables() in metaspaceShared.cpp for
@@ -812,6 +813,9 @@
 
   const char* internal_name() const { return "{method}"; }
 
+  // Check for valid method pointer
+  bool is_valid_method() const;
+
   // Verify
   void verify() { verify_on(tty); }
   void verify_on(outputStream* st);