6911922: JVM must throw VerifyError for jsr or jsr_w opcodes in class file v.51+
6693236: A class file whose version number is greater than to 50.0 must be verified using the typechecker
Summary: Disable failover verification for classfiles >= v51
Reviewed-by: never, acorn, dholmes
--- a/hotspot/src/share/vm/classfile/verifier.cpp Mon May 17 07:11:27 2010 -0700
+++ b/hotspot/src/share/vm/classfile/verifier.cpp Wed May 19 10:19:10 2010 -0400
@@ -25,6 +25,8 @@
# include "incls/_precompiled.incl"
# include "incls/_verifier.cpp.incl"
+#define NOFAILOVER_MAJOR_VERSION 51
+
// Access to external entry for VerifyClassCodes - old byte code verifier
extern "C" {
@@ -91,7 +93,8 @@
klass, message_buffer, message_buffer_len, THREAD);
split_verifier.verify_class(THREAD);
exception_name = split_verifier.result();
- if (FailOverToOldVerifier && !HAS_PENDING_EXCEPTION &&
+ if (klass->major_version() < NOFAILOVER_MAJOR_VERSION &&
+ FailOverToOldVerifier && !HAS_PENDING_EXCEPTION &&
(exception_name == vmSymbols::java_lang_VerifyError() ||
exception_name == vmSymbols::java_lang_ClassFormatError())) {
if (TraceClassInitialization) {