Eliminate Resource.isMemoryMappable

jetty-core/jetty-util/src/main/java/org/eclipse/jetty/util/BufferUtil.java

@@ -1071,14 +1071,16 @@ public class BufferUtil
 
     public static ByteBuffer toMappedBuffer(Resource resource) throws IOException
     {
-        if (!resource.isMemoryMappable())
+        Path path = resource.getPath();
+        if (path == null)
             return null;
         return toMappedBuffer(resource.getPath());
     }
 
     public static ByteBuffer toMappedBuffer(Resource resource, long pos, long len) throws IOException
     {
-        if (!resource.isMemoryMappable())
+        Path path = resource.getPath();
+        if (path == null)
             return null;
         return toMappedBuffer(resource.getPath(), pos, len);
     }

jetty-core/jetty-util/src/main/java/org/eclipse/jetty/util/resource/PathResource.java

@@ -279,12 +279,6 @@ public class PathResource extends Resource
         return path.toAbsolutePath().toString();
     }
 
-    @Override
-    public boolean isMemoryMappable()
-    {
-        return "file".equalsIgnoreCase(uri.getScheme());
-    }
-
     @Override
     public URI getURI()
     {

jetty-core/jetty-util/src/main/java/org/eclipse/jetty/util/resource/Resource.java

@@ -252,16 +252,6 @@ public abstract class Resource
         return Files.newByteChannel(getPath(), StandardOpenOption.READ);
     }
 
-    /**
-     * Checks if the resource supports being loaded as a memory-mapped ByteBuffer.
-     *
-     * @return true if the resource supports memory-mapped ByteBuffer, false otherwise.
-     */
-    public boolean isMemoryMappable()
-    {
-        return false;
-    }
-
     /**
      * list of resource names contained in the given resource.
      * Ordering is unspecified, so callers may wish to sort the return value to ensure deterministic behavior.