OAK-9751 : handled cases where path changes in lucene exceeds max bui…

…lder size

oak-lucene/src/main/java/org/apache/jackrabbit/oak/plugins/index/lucene/hybrid/LuceneJournalPropertyBuilder.java

@@ -93,6 +93,9 @@ public void addSerializedProperty(@Nullable String json) {
                     }
                     if (sizeWithinLimits()) {
                         indexedNodes.put(path, reader.readString());
+                    } else {
+                        // return if max limit reached for builder to avoid overflow exception
+                        return;
                     }
                 }
             } while (reader.matches(','));

oak-lucene/src/test/java/org/apache/jackrabbit/oak/plugins/index/lucene/hybrid/LuceneJournalPropertyBuilderTest.java

@@ -53,7 +53,25 @@ public void nullOrEmptyJson() throws Exception{
 
         assertTrue(Iterables.isEmpty(((IndexedPaths)builder2.build())));
     }
+    @Test
+    public void addJsonLessThanMaxBuilderSize() throws Exception {
+        String a = null;
+        for (int i = 0; i < 499; i++) {
+            a = "{\"/var/eventing/jobs/foo/2022/4/19/14/27/af96fcfa9e32_8589" + i + "\" :[\"/oak:index/foo\",\"/oak:index/bar\"]}";
+            builder.addSerializedProperty(a);
+        }
+        assertEquals(createdIndexPathMap((IndexedPaths)builder.build()).size(), 998);
+    }
 
+    @Test
+    public void addJsonBiggerThanMaxBuilderSize() throws Exception {
+        String a = null;
+        for (int i = 0; i < 502; i++) {
+            a = "{\"/var/eventing/jobs/foo/2022/4/19/14/27/af96fcfa9e32_8589" + i + "\" :[\"/oak:index/foo\",\"/oak:index/bar\"]}";
+            builder.addSerializedProperty(a);
+        }
+        assertEquals(createdIndexPathMap((IndexedPaths)builder.build()).size(), 1000);
+    }
     @Test
     public void addMulti() throws Exception{
         LuceneDocumentHolder h1 = createHolder();