dbalek commented on a change in pull request #3093:
URL: https://github.com/apache/netbeans/pull/3093#discussion_r695868929



##########
File path: 
ide/gsf.testrunner.ui/src/org/netbeans/modules/gsf/testrunner/ui/api/TestMethodFinder.java
##########
@@ -0,0 +1,129 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.netbeans.modules.gsf.testrunner.ui.api;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.URI;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.BiConsumer;
+import javax.swing.text.Position;
+import org.netbeans.modules.gsf.testrunner.ui.TestMethodFinderImpl;
+import org.netbeans.modules.parsing.impl.indexing.CacheFolder;
+import org.netbeans.spi.project.SingleMethod;
+import org.openide.filesystems.FileObject;
+import org.openide.filesystems.FileUtil;
+import org.openide.filesystems.URLMapper;
+import org.openide.util.Exceptions;
+
+/**
+ * API to provide a list of {@link TestMethod}s found in sources under 
particular test roots.
+ *
+ * @author Dusan Balek
+ * @since 1.27
+ */
+public final class TestMethodFinder {
+
+    /**
+     * Provides a list of {@link TestMethod}s found in sources under 
particular test roots.
+     *
+     * @param testRoots roots to search test methods for
+     * @param listener a listener to inform about later changes
+     * @return map of test source files to tests methods found
+     * @since 1.27
+     */
+    public static Map<FileObject, Collection<TestMethodController.TestMethod>> 
findTestMethods(Iterable<FileObject> testRoots, BiConsumer<FileObject, 
Collection<TestMethodController.TestMethod>> listener) {
+        if (TestMethodFinderImpl.INSTANCE != null) {
+            TestMethodFinderImpl.INSTANCE.addListener(listener);

Review comment:
       Modified to hold listeners weakly.




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