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typetools · Sep 12, 2024 · fb32107 · fb32107
1 parent 26ace09
commit fb32107
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Showing 2 changed files with 8 additions and 6 deletions.
diff --git a/...t/src/test/java/org/apache/logging/log4j/internal/map/UnmodifiableArrayBackedMapTest.java b/...t/src/test/java/org/apache/logging/log4j/internal/map/UnmodifiableArrayBackedMapTest.java
@@ -55,18 +55,19 @@ private HashMap<String, String> getTestParameters(int numParams) {
     @Test
     public void testCopyAndPut() {
         UnmodifiableArrayBackedMap testMap = UnmodifiableArrayBackedMap.EMPTY_MAP;
-        testMap = testMap.copyAndPut("1", "value1");
-        assertTrue(testMap.containsKey("1"));
-        assertEquals(testMap.get("1"), "value1");
+        testMap = testMap.copyAndPut("6", "value6");
+        assertTrue(testMap.containsKey("6"));
+        assertEquals(testMap.get("6"), "value6");
 
-        testMap = testMap.copyAndPut("1", "another value");
-        assertTrue(testMap.containsKey("1"));
-        assertEquals(testMap.get("1"), "another value");
+        testMap = testMap.copyAndPut("6", "another value");
+        assertTrue(testMap.containsKey("6"));
+        assertEquals(testMap.get("6"), "another value");
 
         HashMap<String, String> newValues = getTestParameters();
         testMap = testMap.copyAndPutAll(newValues);
         assertEquals(testMap.get("1"), "value1");
         assertEquals(testMap.get("4"), "value4");
+        assertEquals(testMap.get("6"), "another value");
     }
 
     @Test

diff --git a/...j-api/src/main/java/org/apache/logging/log4j/internal/map/UnmodifiableArrayBackedMap.java b/...j-api/src/main/java/org/apache/logging/log4j/internal/map/UnmodifiableArrayBackedMap.java
@@ -282,6 +282,7 @@ public UnmodifiableArrayBackedMap copyAndPutAll(Map<String, String> entriesToAdd
         // copy the contents of the current map (if any)
         if (numEntries > 0) {
             System.arraycopy(backingArray, 0, newMap.backingArray, 0, numEntries * 2 + 1);
+            newMap.numEntries = numEntries;
         }
 
         for (Map.Entry<String, String> entry : entriesToAdd.entrySet()) {