Removed suspicious call of getClass() on instance of Class, which era…

…sed type info (opensearch-project#16002) (opensearch-project#16371) * Removed suspicious getClass() call on Class * Changed the exception's message. Added unit test. * Run spotless, add license header --------- (cherry picked from commit 4456d55) Signed-off-by: Dmitry Kryukov <[email protected]> Signed-off-by: Daniel Widdis <[email protected]> Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com> Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com> Co-authored-by: Daniel Widdis <[email protected]>
dbwiddis · Oct 18, 2024 · c5941db · c5941db
1 parent 3493b38
commit c5941db
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Showing 2 changed files with 32 additions and 2 deletions.
diff --git a/libs/core/src/main/java/org/opensearch/core/common/io/stream/Writeable.java b/libs/core/src/main/java/org/opensearch/core/common/io/stream/Writeable.java
@@ -83,7 +83,7 @@ public static <R extends Reader<?>> void registerReader(final byte ordinal, fina
 
         public static void registerClassAlias(final Class<?> classInstance, final Class<?> classGeneric) {
             if (WRITER_CUSTOM_CLASS_MAP.putIfAbsent(classInstance, classGeneric) != null) {
-                throw new IllegalArgumentException("Streamable custom class already registered [" + classInstance.getClass() + "]");
+                throw new IllegalArgumentException("Streamable custom class already registered [" + classInstance.getName() + "]");
             }
         }
 
@@ -96,7 +96,7 @@ public static <W extends Writer<?>> W getWriter(final Class<?> clazz) {
         }
 
         /**
-         * Returns the ristered reader keyed by the unique ordinal
+         * Returns the registered reader keyed by the unique ordinal
          */
         @SuppressWarnings("unchecked")
         public static <R extends Reader<?>> R getReader(final byte b) {

diff --git a/libs/core/src/test/java/org/opensearch/core/common/io/stream/WriteableTests.java b/libs/core/src/test/java/org/opensearch/core/common/io/stream/WriteableTests.java
@@ -0,0 +1,30 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ */
+
+package org.opensearch.core.common.io.stream;
+
+import org.opensearch.test.OpenSearchTestCase;
+import org.junit.Assert;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class WriteableTests extends OpenSearchTestCase {
+
+    public void testRegisterClassAlias() {
+        Writeable.WriteableRegistry.registerClassAlias(StringBuilder.class, AtomicInteger.class);
+        try {
+            Writeable.WriteableRegistry.registerClassAlias(StringBuilder.class, AtomicInteger.class);
+            Assert.fail("expected exception not thrown");
+        } catch (IllegalArgumentException illegalArgumentException) {
+            Assert.assertEquals(
+                "Streamable custom class already registered [java.lang.StringBuilder]",
+                illegalArgumentException.getMessage()
+            );
+        }
+    }
+}