HHH-18122 removed check of the arg type for private classes

Author: dk2k

hibernate-core/src/main/java/org/hibernate/internal/util/collections/BoundedConcurrentHashMap.java

@@ -225,9 +225,6 @@ public int hashCode() {
 
 		@Override
 		public boolean equals(Object o) {
-			if (!(o instanceof HashEntry)) {
-				return false;
-			}
 			// HashEntry is internal class, never leaks out of CHM, hence slight optimization
 			if ( this == o ) {
 				return true;
@@ -487,9 +484,6 @@ public int hashCode() {
 
 		@Override
 		public boolean equals(Object o) {
-			if (!(o instanceof LIRSHashEntry)) {
-				return false;
-			}
 			// HashEntry is internal class, never leaks out of CHM, hence slight optimization
 			if ( this == o ) {
 				return true;

hibernate-core/src/main/java/org/hibernate/mapping/Table.java

@@ -840,13 +840,12 @@ public int hashCode() {
 		}
 
 		public boolean equals(Object other) {
-			if (!(other instanceof ForeignKeyKey)) {
+			if ( !( other instanceof ForeignKeyKey ) ) {
 				return false;
 			}
 			ForeignKeyKey fkk = (ForeignKeyKey) other;
-			return fkk != null
-				&& Arrays.equals( fkk.columns, columns )
-				&& Arrays.equals( fkk.referencedColumns, referencedColumns );
+			return Arrays.equals( fkk.columns, columns )
+					&& Arrays.equals( fkk.referencedColumns, referencedColumns );
 		}
 
 		@Override

hibernate-core/src/main/java/org/hibernate/spi/NavigablePath.java

@@ -126,10 +126,6 @@ public int hashCode() {
 
 	@Override
 	public boolean equals(@Nullable Object other) {
-		if (!(other instanceof NavigablePath)) {
-			return false;
-		}
-
 		if ( this == other ) {
 			return true;
 		}

hibernate-core/src/main/java/org/hibernate/type/spi/TypeConfiguration.java

@@ -642,9 +642,6 @@ public ArrayCacheKey(SqmExpressible<?>[] components) {
 
 		@Override
 		public boolean equals(Object o) {
-			if (!(o instanceof ArrayCacheKey)) {
-				return false;
-			}
 			return Arrays.equals( components, ((ArrayCacheKey) o).components );
 		}