fix: Skip code references in comment (#638)

* fix NPE for records

* fix: Skip code references in comment

Author: amishra-u

src/main/java/org/openrewrite/java/migrate/joda/JodaTimeScanner.java

@@ -26,11 +26,9 @@
 import org.openrewrite.analysis.dataflow.Dataflow;
 import org.openrewrite.analysis.dataflow.analysis.SinkFlowSummary;
 import org.openrewrite.java.JavaIsoVisitor;
-import org.openrewrite.java.tree.Expression;
-import org.openrewrite.java.tree.J;
+import org.openrewrite.java.JavadocVisitor;
+import org.openrewrite.java.tree.*;
 import org.openrewrite.java.tree.J.VariableDeclarations.NamedVariable;
-import org.openrewrite.java.tree.JavaType;
-import org.openrewrite.java.tree.MethodCall;
 
 import java.util.*;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -52,6 +50,19 @@ public JodaTimeScanner(JodaTimeRecipe.Accumulator acc) {
         this.acc = acc;
     }
 
+    @Override
+    protected JavadocVisitor<ExecutionContext> getJavadocVisitor() {
+        return new JavadocVisitor<ExecutionContext>(this) {
+            /**
+             * Do not visit the method referenced from the Javadoc, may cause recipe to fail.
+             */
+            @Override
+            public Javadoc visitReference(Javadoc.Reference reference, ExecutionContext ctx) {
+                return reference;
+            }
+        };
+    }
+
     @Override
     public J visitCompilationUnit(J.CompilationUnit cu, ExecutionContext ctx) {
         super.visitCompilationUnit(cu, ctx);

src/test/java/org/openrewrite/java/migrate/joda/JodaTimeRecipeTest.java

@@ -467,4 +467,39 @@ public Interval interval() {
           )
         );
     }
+
+    @Test
+    void migrateWithMethodReferenceInComment() {
+        //language=java
+        rewriteRun(
+          java(
+            """
+              import org.joda.time.DateTime;
+
+              class A {
+                  public void foo() {
+                      /**
+                       * some method reference in comment
+                       * {@link java.util.List#add(DateTime)}
+                       */
+                      System.out.println(new DateTime());
+                  }
+              }
+              """,
+            """
+              import java.time.ZonedDateTime;
+
+              class A {
+                  public void foo() {
+                      /**
+                       * some method reference in comment
+                       * {@link java.util.List#add(DateTime)}
+                       */
+                      System.out.println(ZonedDateTime.now());
+                  }
+              }
+              """
+            )
+        );
+    }
 }