Summary

RandomGeneratorFactory.all(Class<T> category) is no longer needed.

Problem

RandomGeneratorFactory.all(Class<T> category) was needed, during development, to supply lists of RandomGeneratorFactory to the all methods of RandomGenerator sub-interfaces. When the RandomGeneratorFactory API was finalized, RandomGeneratorFactory.all() API had been enhanced to provide similar functionality and the all methods of RandomGenerator sub-interfaces were removed without removing RandomGeneratorFactory.all(Class<T> category).

Solution

Since the method provides no useful public API, simply remove the method.

Specification

diff --git a/src/java.base/share/classes/java/util/random/RandomGeneratorFactory.java b/src/java.base/share/classes/java/util/random/RandomGeneratorFactory.java
index c0956545bf8..44f2b0c3c71 100644
--- a/src/java.base/share/classes/java/util/random/RandomGeneratorFactory.java
+++ b/src/java.base/share/classes/java/util/random/RandomGeneratorFactory.java
@@ -370,31 +370,6 @@ public final class RandomGeneratorFactory<T extends RandomGenerator> {
         return factoryOf("L32X64MixRandom", RandomGenerator.class);
     }

-    /**
-     * Returns a stream of matching Providers.
-     *
-     * @param category  {@link RandomGenerator} sub-interface class to filter
-     * @param <T>       {@link RandomGenerator} sub-interface return type
-     *
-     * RandomGenerators that are marked as deprecated or are not properly configured are not included in the result.
-     *
-     * @implSpec Availability is determined by RandomGeneratorFactory using the service provider API
-     * to locate implementations of the RandomGenerator interface.
-     *
-     * @return Stream of matching {@link RandomGeneratorFactory RandomGeneratorFactory(s)}.
-     *
-     * @hidden
-     */
-    public static <T extends RandomGenerator> Stream<RandomGeneratorFactory<T>> all(Class<T> category) {
-        Map<String, Provider<? extends RandomGenerator>> fm = getFactoryMap();
-        return fm.values()
-                 .stream()
-                 .filter(p -> isSubclass(category, p) &&
-                              !p.type().isAnnotationPresent(Deprecated.class) &&
-                              p.type().isAnnotationPresent(RandomGeneratorProperties.class))
-                 .map(RandomGeneratorFactory::new);
-    }
-
     /**
      * Returns a non-empty stream of available {@link RandomGeneratorFactory RandomGeneratorFactory(s)}.
      *