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8181443: Replace usages of jdk.internal.misc.Unsafe with MethodHandles.Lookup.defineClass

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Reviewed-by: alanb, egahlin
This commit is contained in:
Mandy Chung 2018-10-04 08:45:21 -07:00
parent 4af2374271
commit 73a6313038
9 changed files with 56 additions and 41 deletions
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12
src/java.base/share/classes/java/lang/reflect/Proxy.java
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@ -39,12 +39,11 @@ import java.util.Objects;
import java.util.Set;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import jdk.internal.loader.BootLoader;
import jdk.internal.misc.JavaLangAccess;
import jdk.internal.misc.SharedSecrets;
import jdk.internal.module.Modules;
import jdk.internal.misc.Unsafe;
import jdk.internal.misc.VM;
import jdk.internal.reflect.CallerSensitive;
import jdk.internal.reflect.Reflection;
@ -468,7 +467,7 @@ public class Proxy implements java.io.Serializable {
* in which the proxy class will be defined.
*/
private static final class ProxyBuilder {
private static final Unsafe UNSAFE = Unsafe.getUnsafe();
private static final JavaLangAccess JLA = SharedSecrets.getJavaLangAccess();
// prefix for all proxy class names
private static final String proxyClassNamePrefix = "$Proxy";
@ -535,9 +534,8 @@ public class Proxy implements java.io.Serializable {
byte[] proxyClassFile = ProxyGenerator.generateProxyClass(
proxyName, interfaces.toArray(EMPTY_CLASS_ARRAY), accessFlags);
try {
Class<?> pc = UNSAFE.defineClass(proxyName, proxyClassFile,
0, proxyClassFile.length,
loader, null);
Class<?> pc = JLA.defineClass(loader, proxyName, proxyClassFile,
null, "__dynamic_proxy__");
reverseProxyCache.sub(pc).putIfAbsent(loader, Boolean.TRUE);
return pc;
} catch (ClassFormatError e) {