[java] local can be final: check class for resources (IDEA-288150)

GitOrigin-RevId: 1910c9203725e2c49fb56fc0c92121f5f56c99ce

java/java-analysis-impl/src/com/intellij/codeInspection/localCanBeFinal/LocalCanBeFinal.java

@@ -1,4 +1,4 @@
-// Copyright 2000-2021 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+// Copyright 2000-2022 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.codeInspection.localCanBeFinal;
 
 import com.intellij.codeInspection.*;
@@ -158,6 +158,9 @@ public class LocalCanBeFinal extends AbstractBaseJavaLocalInspectionTool impleme
 
       @Override
       public void visitResourceVariable(PsiResourceVariable variable) {
+        if (PsiTreeUtil.getParentOfType(variable, PsiClass.class) != PsiTreeUtil.getParentOfType(body, PsiClass.class)) {
+          return;
+        }
         result.add(variable);
       }
 

java/java-tests/testData/inspection/localCanBeFinal/Resource.java

@@ -1,5 +1,4 @@
-import java.io.BufferedReader;
-import java.io.FileReader;
+import java.io.*;
 
 class Test {
   String m() {
@@ -10,4 +9,18 @@ class Test {
     }
     return null;
   }
+
+  void n() {
+    new Runnable() {
+      @Override
+      public void run() {
+        try (InputStream <warning descr="Variable 'is' can have 'final' modifier">is</warning> = new FileInputStream(new File("b"))) {
+          System.out.println(is);
+        }
+        catch (final IOException e) {
+          throw new RuntimeException(e);
+        }
+      }
+    };
+  }
 }