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8212117: Class.forName may return a reference to a loaded but not linked Class

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Reviewed-by: dholmes, mchung
This commit is contained in:
Brent Christian 2019-09-09 11:04:04 -07:00
parent 10e4fd4b95
commit a4613d4a8f
13 changed files with 342 additions and 16 deletions
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14
src/java.base/share/classes/java/lang/invoke/MethodHandles.java
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@ -1927,12 +1927,17 @@ assertEquals("[x, y, z]", pb.command().toString());
}
/**
* Looks up a class by name from the lookup context defined by this {@code Lookup} object. The static
* Looks up a class by name from the lookup context defined by this {@code Lookup} object.
* This method attempts to locate, load, and link the class, and then determines whether
* the class is accessible to this {@code Lookup} object. The static
* initializer of the class is not run.
* <p>
* The lookup context here is determined by the {@linkplain #lookupClass() lookup class}, its class
* loader, and the {@linkplain #lookupModes() lookup modes}. In particular, the method first attempts to
* load the requested class, and then determines whether the class is accessible to this lookup object.
* loader, and the {@linkplain #lookupModes() lookup modes}.
* <p>
* Note that this method throws errors related to loading and linking as
* specified in Sections 12.2 and 12.3 of <em>The Java Language
* Specification</em>.
*
* @param targetName the fully qualified name of the class to be looked up.
* @return the requested class.
@ -1944,6 +1949,9 @@ assertEquals("[x, y, z]", pb.command().toString());
* modes.
* @exception SecurityException if a security manager is present and it
* <a href="MethodHandles.Lookup.html#secmgr">refuses access</a>
*
* @jls 12.2 Loading of Classes and Interfaces
* @jls 12.3 Linking of Classes and Interfaces
* @since 9
*/
public Class<?> findClass(String targetName) throws ClassNotFoundException, IllegalAccessException {