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8280035: Use Class.isInstance instead of Class.isAssignableFrom where applicable

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Reviewed-by: prr, rriggs
This commit is contained in:
Andrey Turbanov 2022-05-19 21:43:32 +00:00
parent 9f562ef754
commit de74e0e25a
10 changed files with 22 additions and 25 deletions
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2
src/java.base/share/classes/java/lang/reflect/AccessibleObject.java
View file

@ -481,7 +481,7 @@ public class AccessibleObject implements AnnotatedElement {
} }
// if this object is an instance member, the given object // if this object is an instance member, the given object
// must be a subclass of the declaring class of this reflected object // must be a subclass of the declaring class of this reflected object
if (!declaringClass.isAssignableFrom(obj.getClass())) { if (!declaringClass.isInstance(obj)) {
throw new IllegalArgumentException("object is not an instance of " throw new IllegalArgumentException("object is not an instance of "
+ declaringClass.getName()); + declaringClass.getName());
} }

4
src/java.base/share/classes/jdk/internal/reflect/UnsafeObjectFieldAccessorImpl.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2001, 2005, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2001, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -77,7 +77,7 @@ class UnsafeObjectFieldAccessorImpl extends UnsafeFieldAccessorImpl {
throwFinalFieldIllegalAccessException(value); throwFinalFieldIllegalAccessException(value);
} }
if (value != null) { if (value != null) {
if (!field.getType().isAssignableFrom(value.getClass())) { if (!field.getType().isInstance(value)) {
throwSetIllegalArgumentException(value); throwSetIllegalArgumentException(value);
} }
} }

4
src/java.base/share/classes/jdk/internal/reflect/UnsafeQualifiedObjectFieldAccessorImpl.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2004, 2005, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2004, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -79,7 +79,7 @@ class UnsafeQualifiedObjectFieldAccessorImpl
throwFinalFieldIllegalAccessException(value); throwFinalFieldIllegalAccessException(value);
} }
if (value != null) { if (value != null) {
if (!field.getType().isAssignableFrom(value.getClass())) { if (!field.getType().isInstance(value)) {
throwSetIllegalArgumentException(value); throwSetIllegalArgumentException(value);
} }
} }

4
src/java.base/share/classes/jdk/internal/reflect/UnsafeQualifiedStaticObjectFieldAccessorImpl.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2004, 2005, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2004, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -77,7 +77,7 @@ class UnsafeQualifiedStaticObjectFieldAccessorImpl
throwFinalFieldIllegalAccessException(value); throwFinalFieldIllegalAccessException(value);
} }
if (value != null) { if (value != null) {
if (!field.getType().isAssignableFrom(value.getClass())) { if (!field.getType().isInstance(value)) {
throwSetIllegalArgumentException(value); throwSetIllegalArgumentException(value);
} }
} }

4
src/java.base/share/classes/jdk/internal/reflect/UnsafeStaticObjectFieldAccessorImpl.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2001, 2005, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2001, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -75,7 +75,7 @@ class UnsafeStaticObjectFieldAccessorImpl extends UnsafeStaticFieldAccessorImpl
throwFinalFieldIllegalAccessException(value); throwFinalFieldIllegalAccessException(value);
} }
if (value != null) { if (value != null) {
if (!field.getType().isAssignableFrom(value.getClass())) { if (!field.getType().isInstance(value)) {
throwSetIllegalArgumentException(value); throwSetIllegalArgumentException(value);
} }
} }

4
src/java.desktop/share/classes/com/sun/beans/decoder/NewElementHandler.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2008, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -188,7 +188,7 @@ class NewElementHandler extends ElementHandler {
return arguments; return arguments;
} }
Class<?> type = types[index]; Class<?> type = types[index];
if (type.isAssignableFrom(argument.getClass())) { if (type.isInstance(argument)) {
return arguments; return arguments;
} }
} }

9
src/java.desktop/share/classes/javax/imageio/spi/ServiceRegistry.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2000, 2021, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2000, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -25,7 +25,6 @@
package javax.imageio.spi; package javax.imageio.spi;
import java.io.File;
import java.security.AccessControlContext; import java.security.AccessControlContext;
import java.security.AccessController; import java.security.AccessController;
import java.security.PrivilegedAction; import java.security.PrivilegedAction;
@ -228,7 +227,7 @@ public class ServiceRegistry {
private Iterator<SubRegistry> getSubRegistries(Object provider) { private Iterator<SubRegistry> getSubRegistries(Object provider) {
List<SubRegistry> l = new ArrayList<>(); List<SubRegistry> l = new ArrayList<>();
for (Class<?> c : categoryMap.keySet()) { for (Class<?> c : categoryMap.keySet()) {
if (c.isAssignableFrom(provider.getClass())) { if (c.isInstance(provider)) {
l.add(categoryMap.get(c)); l.add(categoryMap.get(c));
} }
} }
@ -270,7 +269,7 @@ public class ServiceRegistry {
if (reg == null) { if (reg == null) {
throw new IllegalArgumentException("category unknown!"); throw new IllegalArgumentException("category unknown!");
} }
if (!category.isAssignableFrom(provider.getClass())) { if (!category.isInstance(provider)) {
throw new ClassCastException(); throw new ClassCastException();
} }
@ -373,7 +372,7 @@ public class ServiceRegistry {
if (reg == null) { if (reg == null) {
throw new IllegalArgumentException("category unknown!"); throw new IllegalArgumentException("category unknown!");
} }
if (!category.isAssignableFrom(provider.getClass())) { if (!category.isInstance(provider)) {
throw new ClassCastException(); throw new ClassCastException();
} }
return reg.deregisterServiceProvider(provider); return reg.deregisterServiceProvider(provider);

6
src/java.desktop/share/classes/javax/swing/plaf/nimbus/Defaults.template
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2005, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -50,14 +50,12 @@ import java.awt.image.BufferedImage;
import static java.awt.image.BufferedImage.*; import static java.awt.image.BufferedImage.*;
import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener; import java.beans.PropertyChangeListener;
import java.lang.ref.WeakReference;
import java.lang.reflect.Constructor; import java.lang.reflect.Constructor;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.HashMap; import java.util.HashMap;
import java.util.LinkedList; import java.util.LinkedList;
import java.util.List; import java.util.List;
import java.util.Map; import java.util.Map;
import java.util.Set;
import java.util.WeakHashMap; import java.util.WeakHashMap;
import javax.swing.border.Border; import javax.swing.border.Border;
import javax.swing.plaf.UIResource; import javax.swing.plaf.UIResource;
@ -565,7 +563,7 @@ ${UI_DEFAULT_INIT}
//type registered, then check to make sure c is of the //type registered, then check to make sure c is of the
//right type; //right type;
Class<?> clazz = parts[partIndex].c; Class<?> clazz = parts[partIndex].c;
if (clazz != null && clazz.isAssignableFrom(c.getClass())) { if (clazz != null && clazz.isInstance(c)) {
//so far so good, recurse //so far so good, recurse
return matches(c.getParent(), partIndex - 1); return matches(c.getParent(), partIndex - 1);
} else if (clazz == null && } else if (clazz == null &&

4
src/jdk.jconsole/share/classes/sun/tools/jconsole/inspector/Utils.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2004, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -140,7 +140,7 @@ public class Utils {
return false; return false;
} }
for (Object o : c) { for (Object o : c) {
if (o == null || !e.isAssignableFrom(o.getClass())) { if (o == null || !e.isInstance(o)) {
return false; return false;
} }
} }

6
src/jdk.jfr/share/classes/jdk/jfr/internal/TypeLibrary.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2016, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -401,8 +401,8 @@ public final class TypeLibrary {
Class<?> ct = returnType.getComponentType(); Class<?> ct = returnType.getComponentType();
if (Annotation.class.isAssignableFrom(ct) && ct.getAnnotation(Repeatable.class) != null) { if (Annotation.class.isAssignableFrom(ct) && ct.getAnnotation(Repeatable.class) != null) {
Object res = m.invoke(a, new Object[0]); Object res = m.invoke(a, new Object[0]);
if (res != null && Annotation[].class.isAssignableFrom(res.getClass())) { if (res instanceof Annotation[] anns) {
for (Annotation rep : (Annotation[]) m.invoke(a, new Object[0])) { for (Annotation rep : anns) {
annos.add(rep); annos.add(rep);
} }
repeated = true; repeated = true;