IDEA-161257 Map.computeIfAbsent: disable inspection if checked exception is thrown from lambda body

java/java-analysis-impl/src/com/intellij/codeInspection/java18api/Java8CollectionsApiInspection.java

@@ -15,6 +15,7 @@
  */
 package com.intellij.codeInspection.java18api;
 
+import com.intellij.codeInsight.ExceptionUtil;
 import com.intellij.codeInsight.FileModificationService;
 import com.intellij.codeInsight.daemon.QuickFixBundle;
 import com.intellij.codeInsight.daemon.impl.analysis.HighlightControlFlowUtil;
@@ -179,6 +180,7 @@ public class Java8CollectionsApiInspection extends BaseJavaBatchLocalInspectionT
               !equivalence.expressionsAreEquivalent(value, putArguments[1])) {
             return;
           }
+          if(!ExceptionUtil.getThrownCheckedExceptions(new PsiElement[] {lambdaCandidate}).isEmpty()) return;
           PsiElement[] varRefs = PsiTreeUtil.collectElements(lambdaCandidate, e -> e instanceof PsiReferenceExpression &&
                                                                                     ((PsiReferenceExpression)e)
                                                                                       .resolve() instanceof PsiVariable);

java/java-tests/testData/inspection/java8CollectionsApi/beforeComputeIfAbsentChecked.java

@@ -0,0 +1,21 @@
+// "Replace with 'computeIfAbsent' method call" "false"
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+public class Main {
+  static class MyList extends ArrayList<String> {
+    public MyList() throws Exception {
+
+    }
+  }
+
+  public void testMap(Map<String, List<String>> map, String key, String value) throws Exception {
+    List<String> list = map.get(key);
+    if(list == nul<caret>l) {
+      list = new MyList();
+      map.put(key, list);
+    }
+    list.add(value);
+  }
+}