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8010427: Refine Method.isDefault implementation

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Reviewed-by: acorn, dlsmith
This commit is contained in:
Joe Darcy 2013-03-20 15:21:14 -07:00
parent c9e6a41b99
commit e91d6c8f4d
1 changed files with 7 additions and 4 deletions
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11
jdk/src/share/classes/java/lang/reflect/Method.java
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@ -522,16 +522,19 @@ public final class Method extends Executable {
* Returns {@code true} if this method is a default
* method; returns {@code false} otherwise.
*
* A default method is a non-abstract method, that is, a method
* with a body, declared in an interface type.
* A default method is a public non-abstract instance method, that
* is, a non-static method with a body, declared in an interface
* type.
*
* @return true if and only if this method is a default
* method as defined by the Java Language Specification.
* @since 1.8
*/
public boolean isDefault() {
return (getModifiers() & Modifier.ABSTRACT) == 0 &&
getDeclaringClass().isInterface();
// Default methods are public non-abstract instance methods
// declared in an interface.
return ((getModifiers() & (Modifier.ABSTRACT | Modifier.PUBLIC | Modifier.STATIC)) ==
Modifier.PUBLIC) && getDeclaringClass().isInterface();
}
// NOTE that there is no synchronization used here. It is correct