提交 ae466267 编写于 作者: A aeriksso

8051045: HotSpot fails to wrap Exceptions from invokedynamic in a BootstrapMethodError

Reviewed-by: coleenp, dsimms
上级 fb8902d7
......@@ -1592,6 +1592,26 @@ void LinkResolver::resolve_handle_call(CallInfo& result, KlassHandle resolved_kl
result.set_handle(resolved_method, resolved_appendix, resolved_method_type, CHECK);
}
static void wrap_invokedynamic_exception(TRAPS) {
if (HAS_PENDING_EXCEPTION) {
if (TraceMethodHandles) {
tty->print_cr("invokedynamic throws BSME for " INTPTR_FORMAT, p2i((void *)PENDING_EXCEPTION));
PENDING_EXCEPTION->print();
}
if (PENDING_EXCEPTION->is_a(SystemDictionary::BootstrapMethodError_klass())) {
// throw these guys, since they are already wrapped
return;
}
if (!PENDING_EXCEPTION->is_a(SystemDictionary::LinkageError_klass())) {
// intercept only LinkageErrors which might have failed to wrap
return;
}
// See the "Linking Exceptions" section for the invokedynamic instruction in the JVMS.
Handle nested_exception(THREAD, PENDING_EXCEPTION);
CLEAR_PENDING_EXCEPTION;
THROW_CAUSE(vmSymbols::java_lang_BootstrapMethodError(), nested_exception)
}
}
void LinkResolver::resolve_invokedynamic(CallInfo& result, constantPoolHandle pool, int index, TRAPS) {
assert(EnableInvokeDynamic, "");
......@@ -1607,7 +1627,8 @@ void LinkResolver::resolve_invokedynamic(CallInfo& result, constantPoolHandle po
ConstantPoolCacheEntry* cpce = pool->invokedynamic_cp_cache_entry_at(index);
if (cpce->is_f1_null()) {
int pool_index = cpce->constant_pool_index();
oop bsm_info = pool->resolve_bootstrap_specifier_at(pool_index, CHECK);
oop bsm_info = pool->resolve_bootstrap_specifier_at(pool_index, THREAD);
wrap_invokedynamic_exception(CHECK);
assert(bsm_info != NULL, "");
// FIXME: Cache this once per BootstrapMethods entry, not once per CONSTANT_InvokeDynamic.
bootstrap_specifier = Handle(THREAD, bsm_info);
......@@ -1616,7 +1637,8 @@ void LinkResolver::resolve_invokedynamic(CallInfo& result, constantPoolHandle po
methodHandle method( THREAD, cpce->f1_as_method());
Handle appendix( THREAD, cpce->appendix_if_resolved(pool));
Handle method_type(THREAD, cpce->method_type_if_resolved(pool));
result.set_handle(method, appendix, method_type, CHECK);
result.set_handle(method, appendix, method_type, THREAD);
wrap_invokedynamic_exception(CHECK);
return;
}
......@@ -1647,25 +1669,9 @@ void LinkResolver::resolve_dynamic_call(CallInfo& result,
&resolved_appendix,
&resolved_method_type,
THREAD);
if (HAS_PENDING_EXCEPTION) {
if (TraceMethodHandles) {
tty->print_cr("invokedynamic throws BSME for " INTPTR_FORMAT, p2i((void *)PENDING_EXCEPTION));
PENDING_EXCEPTION->print();
}
if (PENDING_EXCEPTION->is_a(SystemDictionary::BootstrapMethodError_klass())) {
// throw these guys, since they are already wrapped
return;
}
if (!PENDING_EXCEPTION->is_a(SystemDictionary::LinkageError_klass())) {
// intercept only LinkageErrors which might have failed to wrap
return;
}
// See the "Linking Exceptions" section for the invokedynamic instruction in the JVMS.
Handle nested_exception(THREAD, PENDING_EXCEPTION);
CLEAR_PENDING_EXCEPTION;
THROW_CAUSE(vmSymbols::java_lang_BootstrapMethodError(), nested_exception)
}
result.set_handle(resolved_method, resolved_appendix, resolved_method_type, CHECK);
wrap_invokedynamic_exception(CHECK);
result.set_handle(resolved_method, resolved_appendix, resolved_method_type, THREAD);
wrap_invokedynamic_exception(CHECK);
}
//------------------------------------------------------------------------------------------------------------------------
......
/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8051045
* @summary Test that exceptions from invokedynamic are wrapped in BootstrapMethodError
* @modules java.base/jdk.internal.org.objectweb.asm
* @run main BootstrapMethodErrorTest
*/
import java.lang.reflect.Method;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import static java.lang.invoke.MethodHandles.*;
import static java.lang.invoke.MethodType.*;
import jdk.internal.org.objectweb.asm.ClassWriter;
import jdk.internal.org.objectweb.asm.Handle;
import jdk.internal.org.objectweb.asm.MethodVisitor;
import jdk.internal.org.objectweb.asm.Opcodes;
public class BootstrapMethodErrorTest extends ClassLoader implements Opcodes {
@Override
public Class findClass(String name) throws ClassNotFoundException {
byte[] b;
try {
b = loadClassData(name);
} catch (Throwable th) {
throw new ClassNotFoundException("Loading error", th);
}
return defineClass(name, b, 0, b.length);
}
private byte[] loadClassData(String name) throws Exception {
ClassWriter cw = new ClassWriter(0);
MethodVisitor mv;
if (name.equals("C")) {
cw.visit(52, ACC_SUPER | ACC_PUBLIC, "C", null, "java/lang/Object", null);
{
mv = cw.visitMethod(ACC_PRIVATE | ACC_STATIC, "m", "()V", null, null);
mv.visitCode();
mv.visitInsn(RETURN);
mv.visitMaxs(0, 1);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
} else if (name.equals("Exec")) {
cw.visit(52, ACC_SUPER | ACC_PUBLIC, "Exec", null, "java/lang/Object", null);
{
mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "invokeRef", "()V", null, null);
mv.visitCode();
Handle h = new Handle(H_INVOKESTATIC, "C", "m", "()V");
mv.visitInvokeDynamicInsn("C", "()V", h);
mv.visitInsn(RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
}
return null;
}
public static void main(String[] args) throws ClassNotFoundException, IllegalAccessException, NoSuchMethodException {
new BootstrapMethodErrorTest().test();
}
public void test() throws ClassNotFoundException, IllegalAccessException, NoSuchMethodException {
Class.forName("C", true, this);
Class<?> exec = Class.forName("Exec", true, this);
try {
exec.getMethod("invokeRef").invoke(null);
} catch (Throwable e) {
Throwable c = e.getCause();
if (c == null) {
throw new RuntimeException(
"Expected BootstrapMethodError wrapped in an InvocationTargetException but it wasn't wrapped", e);
} else if (c instanceof BootstrapMethodError) {
// Only way to pass test, all else should throw
return;
} else {
throw new RuntimeException(
"Expected BootstrapMethodError but got another Error: "
+ c.getClass().getName(),
c);
}
}
throw new RuntimeException("Expected BootstrapMethodError but no Error at all was thrown");
}
}
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册