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8344943: Mark not subclassable classes final in java.base exported classes

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Reviewed-by: weijun, liach, djelinski
This commit is contained in:
Eirik Bjørsnøs 2025-01-24 19:29:05 +00:00
parent 76f792b552
commit 8e8f800071
22 changed files with 44 additions and 47 deletions
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4
src/java.base/share/classes/java/io/OptionalDataException.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1996, 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1996, 2025, 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
@ -44,7 +44,7 @@ package java.io;
*
* @since 1.1
*/
public class OptionalDataException extends ObjectStreamException {
public final class OptionalDataException extends ObjectStreamException {
@java.io.Serial
private static final long serialVersionUID = -8011121865681257820L;

4
src/java.base/share/classes/java/lang/Package.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2025, 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
@ -113,7 +113,7 @@ import jdk.internal.reflect.Reflection;
*
* @since 1.2
*/
public class Package extends NamedPackage implements java.lang.reflect.AnnotatedElement {
public final class Package extends NamedPackage implements java.lang.reflect.AnnotatedElement {
/**
* Return the name of this package.
*

4
src/java.base/share/classes/java/lang/Runtime.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1995, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1995, 2025, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2019, Azul Systems, Inc. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
@ -120,7 +120,7 @@ import jdk.internal.reflect.Reflection;
* @since 1.0
*/
public class Runtime {
public final class Runtime {
private static final Runtime currentRuntime = new Runtime();
private static Version version;

8
src/java.base/share/classes/java/lang/constant/DynamicCallSiteDesc.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2018, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2018, 2025, 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
@ -41,12 +41,12 @@ import static jdk.internal.constant.ConstantUtils.validateMemberName;
* A <a href="package-summary.html#nominal">nominal descriptor</a> for an
* {@code invokedynamic} call site.
*
* <p>Concrete subtypes of {@linkplain DynamicCallSiteDesc} should be immutable
* and their behavior should not rely on object identity.
* <p>A {@code DynamicCallSiteDesc} is immutable and its behavior does not
* rely on object identity.
*
* @since 12
*/
public class DynamicCallSiteDesc {
public final class DynamicCallSiteDesc {
private final DirectMethodHandleDesc bootstrapMethod;
private final ConstantDesc[] bootstrapArgs;

4
src/java.base/share/classes/java/lang/invoke/MethodHandleProxies.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2008, 2025, 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
@ -69,7 +69,7 @@ import static jdk.internal.constant.ConstantUtils.*;
*
* @since 1.7
*/
public class MethodHandleProxies {
public final class MethodHandleProxies {
private MethodHandleProxies() { } // do not instantiate

4
src/java.base/share/classes/java/lang/invoke/MethodHandles.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2008, 2025, 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
@ -84,7 +84,7 @@ import static java.lang.invoke.MethodType.methodType;
* @author John Rose, JSR 292 EG
* @since 1.7
*/
public class MethodHandles {
public final class MethodHandles {
private MethodHandles() { } // do not instantiate

4
src/java.base/share/classes/java/lang/module/ModuleDescriptor.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2009, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2009, 2025, 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
@ -91,7 +91,7 @@ import jdk.internal.module.ModuleInfo;
* @since 9
*/
public class ModuleDescriptor
public final class ModuleDescriptor
implements Comparable<ModuleDescriptor>
{

4
src/java.base/share/classes/java/lang/reflect/Modifier.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1996, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1996, 2025, 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
@ -52,7 +52,7 @@ import java.util.StringJoiner;
* @author Kenneth Russell
* @since 1.1
*/
public class Modifier {
public final class Modifier {
/**
* Do not call.
*/

4
src/java.base/share/classes/java/lang/runtime/ObjectMethods.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2017, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2017, 2025, 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
@ -48,7 +48,7 @@ import static java.util.Objects.requireNonNull;
*
* @since 16
*/
public class ObjectMethods {
public final class ObjectMethods {
private ObjectMethods() { }

4
src/java.base/share/classes/java/lang/runtime/SwitchBootstraps.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2017, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2017, 2025, 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
@ -74,7 +74,7 @@ import sun.invoke.util.Wrapper;
*
* @since 21
*/
public class SwitchBootstraps {
public final class SwitchBootstraps {
private SwitchBootstraps() {}

4
src/java.base/share/classes/java/net/InterfaceAddress.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2005, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2005, 2025, 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
@ -36,7 +36,7 @@ import java.util.Objects;
* @see java.net.NetworkInterface
* @since 1.6
*/
public class InterfaceAddress {
public final class InterfaceAddress {
private InetAddress address = null;
private Inet4Address broadcast = null;
private short maskLength = 0;

4
src/java.base/share/classes/java/net/URLDecoder.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1998, 2023, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1998, 2025, 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
@ -81,7 +81,7 @@ import java.util.Objects;
* @since 1.2
*/
public class URLDecoder {
public final class URLDecoder {
/**
* Do not call.

4
src/java.base/share/classes/java/net/URLEncoder.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1995, 2023, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1995, 2025, 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
@ -84,7 +84,7 @@ import jdk.internal.util.ImmutableBitSetPredicate;
* @author Herb Jellinek
* @since 1.0
*/
public class URLEncoder {
public final class URLEncoder {
private static final IntPredicate DONT_NEED_ENCODING;
static {

4
src/java.base/share/classes/java/nio/charset/CoderResult.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2023, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2025, 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
@ -81,7 +81,7 @@ import java.util.Map;
* @since 1.4
*/
public class CoderResult {
public final class CoderResult {
private static final int CR_UNDERFLOW = 0;
private static final int CR_OVERFLOW = 1;

4
src/java.base/share/classes/java/nio/charset/CodingErrorAction.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2025, 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
@ -40,7 +40,7 @@ package java.nio.charset;
* @since 1.4
*/
public class CodingErrorAction {
public final class CodingErrorAction {
private String name;

4
src/java.base/share/classes/java/security/DrbgParameters.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2016, 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2016, 2025, 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
@ -232,7 +232,7 @@ import java.util.Objects;
*
* @since 9
*/
public class DrbgParameters {
public final class DrbgParameters {
private DrbgParameters() {
// This class should not be instantiated

4
src/java.base/share/classes/java/util/Base64.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2012, 2023, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012, 2025, 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
@ -81,7 +81,7 @@ import jdk.internal.vm.annotation.IntrinsicCandidate;
* @since 1.8
*/
public class Base64 {
public final class Base64 {
private Base64() {}

2
src/java.base/share/classes/java/util/Collections.java
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@ -82,7 +82,7 @@ import jdk.internal.access.SharedSecrets;
* @since 1.2
*/
public class Collections {
public final class Collections {
// Suppresses default constructor, ensuring non-instantiability.
private Collections() {
}

4
src/java.base/share/classes/java/util/FormattableFlags.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2004, 2025, 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
@ -33,7 +33,7 @@ package java.util;
*
* @since 1.5
*/
public class FormattableFlags {
public final class FormattableFlags {
// Explicit instantiation of this class is prohibited.
private FormattableFlags() {}

2
src/java.base/share/classes/java/util/concurrent/Executors.java
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@ -68,7 +68,7 @@ import jdk.internal.ref.CleanerFactory;
* @since 1.5
* @author Doug Lea
*/
public class Executors {
public final class Executors {
/**
* Creates a thread pool that reuses a fixed number of threads

2
src/java.base/share/classes/java/util/concurrent/locks/LockSupport.java
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@ -139,7 +139,7 @@ import jdk.internal.misc.Unsafe;
*
* @since 1.5
*/
public class LockSupport {
public final class LockSupport {
private LockSupport() {} // Cannot be instantiated.
private static void setBlocker(Thread t, Object arg) {