diff --git a/icu4j/main/classes/core/src/com/ibm/icu/text/CompactDecimalDataCache.java b/icu4j/main/classes/core/src/com/ibm/icu/text/CompactDecimalDataCache.java
index cf48e2f98f8..cccd3a8e3d3 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/text/CompactDecimalDataCache.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/text/CompactDecimalDataCache.java
@@ -136,6 +136,9 @@ class CompactDecimalDataCache {
         } else {
             r = r.getWithFallback(resourcePath);
         }
+        if (r == null) {
+            return null;
+        }
         int size = r.getSize();
         Data result = new Data(
                 new long[MAX_DIGITS],
diff --git a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/CompactDecimalFormatTest.java b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/CompactDecimalFormatTest.java
index bab02387121..6c9c7c2a207 100644
--- a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/CompactDecimalFormatTest.java
+++ b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/CompactDecimalFormatTest.java
@@ -108,6 +108,13 @@ public class CompactDecimalFormatTest extends TestFmwk {
     public void TestEnglishShort() {
         checkLocale(ULocale.ENGLISH, CompactStyle.SHORT, EnglishTestData);
     }
+    
+    public void TestNoLongStyleInCLDR() {
+        NumberFormat cdf =
+                NumberFormat.getCompactDecimalInstance(
+                        ULocale.forLanguageTag("ar_EG"), CompactStyle.LONG);
+        assertEquals("Missing PatternsLong", "5K", cdf.format(5000));
+    }
 
     public void TestSerbianShort() {
         checkLocale(ULocale.forLanguageTag("sr"), CompactStyle.SHORT, SerbianTestDataShort);