Minor correction

j2k/src/org/jetbrains/kotlin/j2k/propertyDetection.kt

@@ -81,7 +81,7 @@ class PropertyInfo(
 class PropertyDetectionCache(private val converter: Converter) {
     private val cache = HashMap<PsiClass, Map<PsiMember, PropertyInfo>>()
 
-    fun get(psiClass: PsiClass): Map<PsiMember, PropertyInfo> {
+    operator fun get(psiClass: PsiClass): Map<PsiMember, PropertyInfo> {
         cache[psiClass]?.let { return it }
 
         assert(converter.inConversionScope(psiClass))
@@ -149,7 +149,7 @@ private class PropertyDetector(
             else
                 field != null && field.isVar(converter.referenceSearcher)
 
-            val type = field?.type ?: getterInfo?.method?.returnType ?: setterInfo!!.method.parameterList.parameters.single()?.type!!
+            val type = getterInfo?.method?.returnType ?: setterInfo!!.method.parameterList.parameters.single()?.type!!
 
             val isOverride = getterInfo?.superProperty != null || setterInfo?.superProperty != null
 

j2k/testData/fileOrElement/detectProperties/PropertyType.java

@@ -0,0 +1,24 @@
+import java.util.ArrayList;
+import java.util.List;
+
+class A {
+    private ArrayList<String> list1 = new ArrayList<String>();
+    private List<String> list2 = new ArrayList<String>();
+    private List<String> myList3 = new ArrayList<String>();
+
+    public List<String> getList1() {
+        return list1;
+    }
+    public List<String> getList2() {
+        return list2;
+    }
+    public List<String> getList3() {
+        return myList3;
+    }
+
+    void foo() {
+        list1.add("a");
+        list2.add("a");
+        myList3.add("a");
+    }
+}

j2k/testData/fileOrElement/detectProperties/PropertyType.kt

@@ -0,0 +1,24 @@
+import java.util.ArrayList
+
+internal class A {
+    private val list1 = ArrayList<String>()
+    private val list2 = ArrayList<String>()
+    private val myList3 = ArrayList<String>()
+
+    fun getList1(): List<String> {
+        return list1
+    }
+
+    fun getList2(): List<String> {
+        return list2
+    }
+
+    val list3: List<String>
+        get() = myList3
+
+    fun foo() {
+        list1.add("a")
+        list2.add("a")
+        myList3.add("a")
+    }
+}

j2k/tests/org/jetbrains/kotlin/j2k/JavaToKotlinConverterForWebDemoTestGenerated.java

@@ -1549,6 +1549,12 @@ public class JavaToKotlinConverterForWebDemoTestGenerated extends AbstractJavaTo
             doTest(fileName);
         }
 
+        @TestMetadata("PropertyType.java")
+        public void testPropertyType() throws Exception {
+            String fileName = JetTestUtils.navigationMetadata("j2k/testData/fileOrElement/detectProperties/PropertyType.java");
+            doTest(fileName);
+        }
+
         @TestMetadata("SetterTypeNotMatch.java")
         public void testSetterTypeNotMatch() throws Exception {
             String fileName = JetTestUtils.navigationMetadata("j2k/testData/fileOrElement/detectProperties/SetterTypeNotMatch.java");

j2k/tests/org/jetbrains/kotlin/j2k/JavaToKotlinConverterSingleFileTestGenerated.java

@@ -1549,6 +1549,12 @@ public class JavaToKotlinConverterSingleFileTestGenerated extends AbstractJavaTo
             doTest(fileName);
         }
 
+        @TestMetadata("PropertyType.java")
+        public void testPropertyType() throws Exception {
+            String fileName = JetTestUtils.navigationMetadata("j2k/testData/fileOrElement/detectProperties/PropertyType.java");
+            doTest(fileName);
+        }
+
         @TestMetadata("SetterTypeNotMatch.java")
         public void testSetterTypeNotMatch() throws Exception {
             String fileName = JetTestUtils.navigationMetadata("j2k/testData/fileOrElement/detectProperties/SetterTypeNotMatch.java");