Quick-fix for NPE in method reference to convert to lambda and add ?: (IDEA-176699)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/replaceWithTernaryOperator/afterMethodRefArgument.java

@@ -0,0 +1,13 @@
+// "Replace with ' != null ?:'" "true"
+
+import java.util.Arrays;
+
+class A{
+  static String convert(String s) {
+    return s.isEmpty() ? s : null;
+  }
+
+  void test(String[] data){
+    Arrays.stream(data).map(A::convert).map(s -> s != null ? convert(s) : null).forEach(System.out::println);
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/replaceWithTernaryOperator/afterMethodRefQualifier.java

@@ -0,0 +1,13 @@
+// "Replace with ' != null ?:'" "true"
+
+import java.util.Arrays;
+
+class A{
+  static String convert(String s) {
+    return s.isEmpty() ? s : null;
+  }
+
+  void test(String[] data){
+    Arrays.stream(data).map(A::convert).map(s -> s != null ? s.trim() : null).forEach(System.out::println);
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/replaceWithTernaryOperator/beforeMethodRefArgument.java

@@ -0,0 +1,13 @@
+// "Replace with ' != null ?:'" "true"
+
+import java.util.Arrays;
+
+class A{
+  static String convert(String s) {
+    return s.isEmpty() ? s : null;
+  }
+
+  void test(String[] data){
+    Arrays.stream(data).map(A::convert).map(A::con<caret>vert).forEach(System.out::println);
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/replaceWithTernaryOperator/beforeMethodRefQualifier.java

@@ -0,0 +1,13 @@
+// "Replace with ' != null ?:'" "true"
+
+import java.util.Arrays;
+
+class A{
+  static String convert(String s) {
+    return s.isEmpty() ? s : null;
+  }
+
+  void test(String[] data){
+    Arrays.stream(data).map(A::convert).map(String::tr<caret>im).forEach(System.out::println);
+  }
+}