Convert Guava Predicates.instanceOf

src/main/java/org/openrewrite/java/migrate/guava/NoGuavaPredicatesInstanceOf.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright 2025 the original author or authors.
+ * <p>
+ * Licensed under the Moderne Source Available License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * https://docs.moderne.io/licensing/moderne-source-available-license
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.openrewrite.java.migrate.guava;
+
+import org.openrewrite.*;
+import org.openrewrite.java.JavaVisitor;
+import org.openrewrite.java.MethodMatcher;
+import org.openrewrite.java.search.UsesMethod;
+import org.openrewrite.java.tree.*;
+import org.openrewrite.marker.Markers;
+
+import java.util.Set;
+
+import static java.util.Collections.emptyList;
+import static java.util.Collections.singleton;
+
+public class NoGuavaPredicatesInstanceOf extends Recipe {
+    private static final MethodMatcher PREDICATES_INSTANCE_OF = new MethodMatcher("com.google.common.base.Predicates instanceOf(..)");
+
+    @Override
+    public String getDisplayName() {
+        return "Prefer `A.class::isInstance`";
+    }
+
+    @Override
+    public String getDescription() {
+        return "Prefer `A.class::isInstance` over `Predicates.instanceOf(A.class)`.";
+    }
+
+    @Override
+    public Set<String> getTags() {
+        return singleton("guava");
+    }
+
+    @Override
+    public TreeVisitor<?, ExecutionContext> getVisitor() {
+        return Preconditions.check(
+                new UsesMethod<>(PREDICATES_INSTANCE_OF),
+                new JavaVisitor<ExecutionContext>() {
+                    @Override
+                    public J visitMethodInvocation(J.MethodInvocation method, ExecutionContext ctx) {
+                        if (PREDICATES_INSTANCE_OF.matches(method)) {
+                            maybeRemoveImport("com.google.common.base.Predicates");
+                            Expression clazz = method.getArguments().get(0);
+                            // XXX `JavaTemplate.builder("#{any()}::isInstance")` failed here
+                            // TODO Add type information for reference and identifier
+                            return new J.MemberReference(
+                                    Tree.randomId(),
+                                    method.getPrefix(),
+                                    Markers.EMPTY,
+                                    JRightPadded.build(clazz),
+                                    null,
+                                    JLeftPadded.build(new J.Identifier(
+                                            Tree.randomId(),
+                                            Space.EMPTY,
+                                            Markers.EMPTY,
+                                            emptyList(),
+                                            "isInstance",
+                                            null,
+                                            null)),
+                                    null,
+                                    null,
+                                    null);
+                        }
+                        return super.visitMethodInvocation(method, ctx);
+                    }
+                }
+        );
+    }
+}

src/main/resources/META-INF/rewrite/no-guava.yml

@@ -41,6 +41,7 @@ recipeList:
   - org.openrewrite.java.migrate.guava.NoGuavaMapsNewTreeMap
   - org.openrewrite.java.migrate.guava.NoGuavaPredicatesAndOr
   - org.openrewrite.java.migrate.guava.NoGuavaPredicatesEqualTo
+  - org.openrewrite.java.migrate.guava.NoGuavaPredicatesInstanceOf
   - org.openrewrite.java.migrate.guava.NoGuavaPrimitiveAsList
   - org.openrewrite.java.migrate.guava.NoGuavaRefasterRecipes
   - org.openrewrite.java.migrate.guava.NoGuavaMapsNewHashMap

src/test/java/org/openrewrite/java/migrate/guava/NoGuavaPredicatesInstanceOfTest.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright 2025 the original author or authors.
+ * <p>
+ * Licensed under the Moderne Source Available License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * https://docs.moderne.io/licensing/moderne-source-available-license
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.openrewrite.java.migrate.guava;
+
+import org.junit.jupiter.api.Test;
+import org.openrewrite.DocumentExample;
+import org.openrewrite.InMemoryExecutionContext;
+import org.openrewrite.java.JavaParser;
+import org.openrewrite.test.RecipeSpec;
+import org.openrewrite.test.RewriteTest;
+import org.openrewrite.test.TypeValidation;
+
+import static org.openrewrite.java.Assertions.java;
+
+class NoGuavaPredicatesInstanceOfTest implements RewriteTest {
+    @Override
+    public void defaults(RecipeSpec spec) {
+        spec
+          .recipe(new NoGuavaPredicatesInstanceOf())
+          .parser(JavaParser.fromJavaVersion().classpathFromResources(new InMemoryExecutionContext(), "guava"));
+    }
+
+    @DocumentExample
+    @Test
+    void predicatesEqualToToPredicateIsEqual() {
+        rewriteRun(
+          // XXX Pending JavaTemplate support for MemberReference
+          spec -> spec.afterTypeValidationOptions(TypeValidation.none()),
+          //language=java
+          java(
+            """
+              import java.util.Collection;
+
+              import com.google.common.base.Predicates;
+              import com.google.common.collect.Iterables;
+
+              class Test {
+                  boolean test(Collection<Object> collection) {
+                      return Iterables.all(collection, Predicates.instanceOf(String.class));
+                  }
+              }
+              """,
+            """
+              import java.util.Collection;
+
+              import com.google.common.collect.Iterables;
+
+              class Test {
+                  boolean test(Collection<Object> collection) {
+                      return Iterables.all(collection, String.class::isInstance);
+                  }
+              }
+              """
+          )
+        );
+    }
+}