diff --git a/api/src/main/kotlin/com/google/devtools/ksp/utils.kt b/api/src/main/kotlin/com/google/devtools/ksp/utils.kt
index bdbd793494..7453c04cd0 100644
--- a/api/src/main/kotlin/com/google/devtools/ksp/utils.kt
+++ b/api/src/main/kotlin/com/google/devtools/ksp/utils.kt
@@ -371,6 +371,16 @@ private fun KSAnnotation.createInvocationHandler(clazz: Class<*>): InvocationHan
                 }
                 else -> {
                     when {
+                        // Workaround for java annotation value array type
+                        // https://github.com/google/ksp/issues/1329
+                        method.returnType.isArray -> {
+                            if (result !is Array<*>) {
+                                val value = { result.asArray(method, clazz) }
+                                cache.getOrPut(Pair(method.returnType, value), value)
+                            } else {
+                                throw IllegalStateException("unhandled value type, $ExceptionMessage")
+                            }
+                        }
                         method.returnType.isEnum -> {
                             val value = { result.asEnum(method.returnType) }
                             cache.getOrPut(Pair(method.returnType, result), value)
@@ -517,3 +527,6 @@ private fun List<KSType>.asClasses(proxyClass: Class<*>) = try {
 }
 
 fun KSValueArgument.isDefault() = origin == Origin.SYNTHETIC
+
+@KspExperimental
+private fun Any.asArray(method: Method, proxyClass: Class<*>) = listOf(this).asArray(method, proxyClass)
diff --git a/test-utils/testData/api/javaAnnotatedUtil.kt b/test-utils/testData/api/javaAnnotatedUtil.kt
index e6da243a6b..30fcbb45bd 100644
--- a/test-utils/testData/api/javaAnnotatedUtil.kt
+++ b/test-utils/testData/api/javaAnnotatedUtil.kt
@@ -35,6 +35,9 @@
 // Test: ParameterArraysTestAnnotationWithDefaultTest
 // IsPresent: class com.google.devtools.ksp.processor.ParameterArraysTestAnnotation
 // ByType: ParameterArraysTestAnnotation[booleanArrayValue=[true, false],byteArrayValue=[-2, 4],shortArrayValue=[-1, 2, 3],charArrayValue=[a, b, c],doubleArrayValue=[1.1, 2.2, 3.3],floatArrayValue=[1.0, 2.0, 3.3],intArrayValue=[1, 2, 4, 8, 16],longArrayValue=[1, 2, 4, 8, 16, 32],stringArrayValue=[first, second, third],kClassArrayValue=[class kotlin.Throwable, class com.google.devtools.ksp.processor.ParametersTestAnnotation],enumArrayValue=[VALUE1, VALUE2, VALUE1, VALUE2]]
+// Test: ParameterArraysTestAnnotationWithSingleAsArrayTest
+// IsPresent: class com.google.devtools.ksp.processor.ParameterArraysTestAnnotation
+// ByType: ParameterArraysTestAnnotation[booleanArrayValue=[true],byteArrayValue=[-2],shortArrayValue=[-1],charArrayValue=[a],doubleArrayValue=[1.1],floatArrayValue=[1.0],intArrayValue=[1],longArrayValue=[1],stringArrayValue=[first],kClassArrayValue=[class kotlin.Throwable],enumArrayValue=[VALUE1]]
 // Test: AnnotationWithinAnAnnotationTest
 // IsPresent: class com.google.devtools.ksp.processor.OuterAnnotation
 // ByType: com.google.devtools.ksp.processor.OuterAnnotation[innerAnnotation=com.google.devtools.ksp.processor.InnerAnnotation[value=hello from the other side]]
@@ -164,6 +167,22 @@ public class ParametersTestWithNegativeDefaultsAnnotationTest {}
 @Test
 public class ParameterArraysTestAnnotationWithDefaultTest {}
 
+@ParameterArraysTestAnnotation(
+    booleanArrayValue = true,
+    byteArrayValue = -2,
+    shortArrayValue = -1,
+    charArrayValue = 'a',
+    doubleArrayValue = 1.1,
+    floatArrayValue = 1.0f,
+    intArrayValue = 1,
+    longArrayValue = 1L,
+    stringArrayValue = "first",
+    kClassArrayValue = java.lang.Throwable.class,
+    enumArrayValue = TestEnum.VALUE1
+)
+@Test
+public class ParameterArraysTestAnnotationWithSingleAsArrayTest {}
+
 @OuterAnnotation(innerAnnotation = @InnerAnnotation(value = "hello from the other side"))
 @Test
 public class AnnotationWithinAnAnnotationTest {}