BAEL-7051 - Catch Common Mistakes with Error-Prone Library in Java (#15278)

static-analysis/my-bugchecker-plugin/src/main/java/com/baeldung/EmptyMethodChecker.java

@@ -0,0 +1,24 @@
+package com.baeldung;
+
+import com.google.auto.service.AutoService;
+import com.google.errorprone.BugPattern;
+import com.google.errorprone.VisitorState;
+import com.google.errorprone.bugpatterns.BugChecker;
+import com.google.errorprone.fixes.SuggestedFix;
+import com.google.errorprone.matchers.Description;
+import com.sun.source.tree.MethodTree;
+
+
+@AutoService(BugChecker.class)
+@BugPattern(name = "EmptyMethodCheck", summary = "Empty methods should be deleted", severity = BugPattern.SeverityLevel.ERROR)
+public class EmptyMethodChecker extends BugChecker implements BugChecker.MethodTreeMatcher {
+    @Override
+    public Description matchMethod(MethodTree methodTree, VisitorState visitorState) {
+        if (methodTree.getBody()
+          .getStatements()
+          .isEmpty()) {
+            return describeMatch(methodTree, SuggestedFix.delete(methodTree));
+        }
+        return Description.NO_MATCH;
+    }
+}