Hide APIs abstract and forwarding caches from J2KT.

These classes are currently not being tested under J2KT.

We could expose them again (even untested if necessary), but for now, it feels safest to withdraw these. They don't have J2KT usage (nor J2CL usage, since they're already not exposed to that platform).

RELNOTES=n/a
PiperOrigin-RevId: 908209358

Author: cpovirk

android/guava/src/com/google/common/cache/AbstractLoadingCache.java

@@ -40,6 +40,7 @@
  * @since 11.0
  */
 @GwtIncompatible
+@J2ktIncompatible // Compiles fine, but hidden for safety because the tests have not been ported
 public abstract class AbstractLoadingCache<K, V> extends AbstractCache<K, V>
     implements LoadingCache<K, V> {
 
@@ -73,8 +74,6 @@ public final V apply(K key) {
   }
 
   @Override
-  @GwtIncompatible
-  @J2ktIncompatible
   public void refresh(K key) {
     throw new UnsupportedOperationException();
   }

android/guava/src/com/google/common/cache/ForwardingCache.java

@@ -34,6 +34,7 @@
  * @since 10.0
  */
 @GwtIncompatible
+@J2ktIncompatible // Compiles fine, but hidden for safety because the tests have not been ported
 public abstract class ForwardingCache<K, V> extends ForwardingObject implements Cache<K, V> {
 
   /** Constructor for use by subclasses. */
@@ -116,7 +117,6 @@ public CacheStats stats() {
   }
 
   @Override
-  @J2ktIncompatible
   public ConcurrentMap<K, V> asMap() {
     return delegate().asMap();
   }

android/guava/src/com/google/common/cache/ForwardingLoadingCache.java

@@ -33,6 +33,7 @@
  * @since 11.0
  */
 @GwtIncompatible
+@J2ktIncompatible // Compiles fine, but hidden for safety because the tests have not been ported
 public abstract class ForwardingLoadingCache<K, V> extends ForwardingCache<K, V>
     implements LoadingCache<K, V> {
 
@@ -65,8 +66,6 @@ public V apply(K key) {
     return delegate().apply(key);
   }
 
-  @GwtIncompatible
-  @J2ktIncompatible
   @Override
   public void refresh(K key) {
     delegate().refresh(key);

guava/src/com/google/common/cache/AbstractLoadingCache.java

@@ -40,6 +40,7 @@
  * @since 11.0
  */
 @GwtIncompatible
+@J2ktIncompatible // Compiles fine, but hidden for safety because the tests have not been ported
 public abstract class AbstractLoadingCache<K, V> extends AbstractCache<K, V>
     implements LoadingCache<K, V> {
 
@@ -73,8 +74,6 @@ public final V apply(K key) {
   }
 
   @Override
-  @GwtIncompatible
-  @J2ktIncompatible
   public void refresh(K key) {
     throw new UnsupportedOperationException();
   }

guava/src/com/google/common/cache/ForwardingCache.java

@@ -34,6 +34,7 @@
  * @since 10.0
  */
 @GwtIncompatible
+@J2ktIncompatible // Compiles fine, but hidden for safety because the tests have not been ported
 public abstract class ForwardingCache<K, V> extends ForwardingObject implements Cache<K, V> {
 
   /** Constructor for use by subclasses. */
@@ -116,7 +117,6 @@ public CacheStats stats() {
   }
 
   @Override
-  @J2ktIncompatible
   public ConcurrentMap<K, V> asMap() {
     return delegate().asMap();
   }

guava/src/com/google/common/cache/ForwardingLoadingCache.java

@@ -33,6 +33,7 @@
  * @since 11.0
  */
 @GwtIncompatible
+@J2ktIncompatible // Compiles fine, but hidden for safety because the tests have not been ported
 public abstract class ForwardingLoadingCache<K, V> extends ForwardingCache<K, V>
     implements LoadingCache<K, V> {
 
@@ -65,8 +66,6 @@ public V apply(K key) {
     return delegate().apply(key);
   }
 
-  @GwtIncompatible
-  @J2ktIncompatible
   @Override
   public void refresh(K key) {
     delegate().refresh(key);