Add a test for custom MethodHandles.lookup

Author: zhelenskiy

src/jvm/test/org/jetbrains/kotlinx/lincheck_test/trace_debugger/CollectorsTest.java

@@ -0,0 +1,40 @@
+/*
+ * Lincheck
+ *
+ * Copyright (C) 2019 - 2025 JetBrains s.r.o.
+ *
+ * This Source Code Form is subject to the terms of the
+ * Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed
+ * with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package org.jetbrains.kotlinx.lincheck_test.trace_debugger;
+
+import org.jetbrains.kotlinx.lincheck.annotations.Operation;
+
+import java.lang.invoke.MethodHandles;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * This test is intended to check that {@link MethodHandles} is successfully created even on Java 8.
+ * It is necessary for invokedynamic handling in the trace debugger.
+ * <p> 
+ * However, due to workaround for <a href="https://github.com/JetBrains/lincheck/issues/500">the issue</a>,
+ * the tests are actually run on the JDK 17.
+ * Nevertheless, when the issue is resolved,
+ * the tests will actually check the correct {@link MethodHandles.Lookup} creation.
+ */
+public class CollectorsTest extends AbstractDeterministicTest {
+    @Operation
+    public Object operation() {
+        return Arrays.stream(
+                new List[] {
+                    Arrays.stream(new String[]{"Hello ", "w"}).collect(Collectors.toList()),
+                    Arrays.stream(new String[]{"Hello ", "w"}).collect(Collectors.toList())
+                }
+        ).flatMap(Collection::stream).collect(Collectors.toList());
+    }
+}