J2K does not convert usages of java "get" methods into "[]" (explicit "operator" modifier is required)

idea/src/org/jetbrains/kotlin/idea/intentions/conventionNameCalls/ReplaceGetIntention.kt

@@ -32,9 +32,15 @@ import org.jetbrains.kotlin.psi.buildExpression
 import org.jetbrains.kotlin.resolve.calls.model.isReallySuccess
 
 public class ExplicitGetInspection : IntentionBasedInspection<JetDotQualifiedExpression>(
-        ReplaceGetIntention(),
+        ReplaceGetIntention(), ExplicitGetInspection.additionalChecker
-        additionalChecker = { expression -> (expression.toResolvedCall()!!.resultingDescriptor as FunctionDescriptor).isExplicitOperator() }
+
-)
+) {
+    companion object {
+        val additionalChecker = { expression: JetDotQualifiedExpression ->
+            (expression.toResolvedCall()!!.resultingDescriptor as FunctionDescriptor).isExplicitOperator()
+        }
+    }
+}
 
 private fun FunctionDescriptor.isExplicitOperator(): Boolean {
     return if (overriddenDescriptors.isEmpty())

idea/src/org/jetbrains/kotlin/idea/j2k/J2kPostProcessings.kt

@@ -26,6 +26,7 @@ import org.jetbrains.kotlin.idea.inspections.RedundantSamConstructorInspection
 import org.jetbrains.kotlin.idea.intentions.*
 import org.jetbrains.kotlin.idea.intentions.branchedTransformations.intentions.IfThenToElvisIntention
 import org.jetbrains.kotlin.idea.intentions.branchedTransformations.intentions.IfThenToSafeAccessIntention
+import org.jetbrains.kotlin.idea.intentions.conventionNameCalls.ExplicitGetInspection
 import org.jetbrains.kotlin.idea.intentions.conventionNameCalls.ReplaceGetIntention
 import org.jetbrains.kotlin.idea.quickfix.RemoveModifierFix
 import org.jetbrains.kotlin.idea.quickfix.RemoveRightPartOfBinaryExpressionFix
@@ -59,7 +60,7 @@ object J2KPostProcessingRegistrar {
         registerIntentionBasedProcessing(IfThenToElvisIntention()) { applyTo(it) }
         registerIntentionBasedProcessing(IfNullToElvisIntention()) { applyTo(it) }
         registerIntentionBasedProcessing(SimplifyNegatedBinaryExpressionIntention()) { applyTo(it) }
-        registerIntentionBasedProcessing(ReplaceGetIntention()) { applyTo(it) }
+        registerIntentionBasedProcessing(ReplaceGetIntention(), additionalChecker = ExplicitGetInspection.additionalChecker) { applyTo(it) }
         registerIntentionBasedProcessing(AddOperatorModifierIntention()) { applyTo(it) }
 
         registerDiagnosticBasedProcessing<JetBinaryExpressionWithTypeRHS>(Errors.USELESS_CAST) { element, diagnostic ->
@@ -102,12 +103,22 @@ object J2KPostProcessingRegistrar {
     private inline fun <reified TElement : JetElement, TIntention: JetSelfTargetingRangeIntention<TElement>> registerIntentionBasedProcessing(
             intention: TIntention,
             crossinline apply: TIntention.(TElement) -> Unit
+    ) {
+        //TODO: replace with optional argument when supported for inline functions
+        return registerIntentionBasedProcessing<TElement, TIntention>(intention, { true }, apply)
+    }
+
+    private inline fun <reified TElement : JetElement, TIntention: JetSelfTargetingRangeIntention<TElement>> registerIntentionBasedProcessing(
+            intention: TIntention,
+            noinline additionalChecker: (TElement) -> Boolean,
+            crossinline apply: TIntention.(TElement) -> Unit
     ) {
         _processings.add(object : J2kPostProcessing {
             override fun createAction(element: JetElement, diagnostics: Diagnostics): (() -> Unit)? {
                 if (!javaClass<TElement>().isInstance(element)) return null
-                @Suppress("UNCHECKED_CAST")
+                val tElement = element as TElement
-                if (intention.applicabilityRange(element as TElement) == null) return null
+                if (intention.applicabilityRange(tElement) == null) return null
+                if (!additionalChecker(tElement)) return null
                 return { intention.apply(element) }
             }
         })

j2k/testData/JavaApi.java

@@ -113,4 +113,10 @@ public class JavaClassDerivedFromKotlinClassWithProperties extends KotlinClassWi
 
     @Override
     public void setSomeVar2(String value) { }
+}
+
+public class JavaClass {
+    public int get(int p) {
+        return 0;
+    }
 }

j2k/testData/fileOrElement/postProcessing/GetOperator.java

@@ -1,5 +1,6 @@
 import java.util.HashMap;
 import kotlinApi.KotlinClass;
+import javaApi.JavaClass;
 
 class X {
     int get(int index) {
@@ -19,4 +20,8 @@ class C {
     int foo(KotlinClass kotlinClass) {
         return kotlinClass.get(0); // not operator!
     }
+
+    int foo(JavaClass javaClass) {
+        return javaClass.get(0);
+    }
 }

j2k/testData/fileOrElement/postProcessing/GetOperator.kt

@@ -1,6 +1,7 @@
 // ERROR: Type mismatch: inferred type is kotlin.String? but kotlin.String was expected
 import java.util.HashMap
 import kotlinApi.KotlinClass
+import javaApi.JavaClass
 
 internal class X {
     operator fun get(index: Int): Int {
@@ -20,4 +21,8 @@ internal class C {
     fun foo(kotlinClass: KotlinClass): Int {
         return kotlinClass.get(0) // not operator!
     }
-}
+
+    fun foo(javaClass: JavaClass): Int {
+        return javaClass.get(0)
+    }
+}