[pinpoint-apm#9414] Refer classpath for querying available libraries

test/src/main/java/com/navercorp/pinpoint/test/plugin/AbstractPinpointPluginTestSuite.java

@@ -16,12 +16,13 @@
 
 package com.navercorp.pinpoint.test.plugin;
 
+import com.navercorp.pinpoint.common.annotations.VisibleForTesting;
+import com.navercorp.pinpoint.common.util.SystemProperty;
 import com.navercorp.pinpoint.test.plugin.util.ArrayUtils;
 import com.navercorp.pinpoint.test.plugin.util.CodeSourceUtils;
 import com.navercorp.pinpoint.test.plugin.util.StringUtils;
 import com.navercorp.pinpoint.test.plugin.util.TestLogger;
 import com.navercorp.pinpoint.test.plugin.util.TestPluginVersion;
-
 import org.junit.internal.runners.statements.RunAfters;
 import org.junit.internal.runners.statements.RunBefores;
 import org.junit.runner.Runner;
@@ -34,14 +35,13 @@
 import java.io.File;
 import java.lang.management.ManagementFactory;
 import java.net.URL;
-import java.net.URLClassLoader;
+import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Comparator;
-import java.util.HashSet;
 import java.util.List;
-import java.util.Set;
+import java.util.TreeSet;
 
 public abstract class AbstractPinpointPluginTestSuite extends Suite {
 
@@ -92,21 +92,16 @@ public AbstractPinpointPluginTestSuite(Class<?> testClass) throws Initialization
         Repository repository = testClass.getAnnotation(Repository.class);
         this.repositoryUrls = getRepository(repository);
 
-        List<ClassLoaderLib> classLoaderLibs = collectLib(getClass().getClassLoader());
+        List<String> classPaths = normalizeClassPaths(getClassPathList());
         if (logger.isDebugEnabled()) {
-            for (ClassLoaderLib classLoaderLib : classLoaderLibs) {
-                logger.debug("classLoader:{}", classLoaderLib.getClassLoader());
-                for (URL lib : classLoaderLib.getLibs()) {
-                    logger.debug("-> {}", classLoaderLib.getClassLoader(), lib);
-                }
-            }
+            logger.debug("classPaths: {}", classPaths);
         }
 
         final LibraryFilter requiredLibraryFilter = new LibraryFilter(
                 LibraryFilter.createContainsMatcher(PluginClassLoading.getContainsCheckClassPath()),
                 LibraryFilter.createGlobMatcher(PluginClassLoading.getGlobMatchesCheckClassPath()));
 
-        this.requiredLibraries = filterLib(classLoaderLibs, requiredLibraryFilter);
+        this.requiredLibraries = filterLibs(classPaths, requiredLibraryFilter);
         if (logger.isDebugEnabled()) {
             for (String requiredLibrary : requiredLibraries) {
                 logger.debug("requiredLibraries :{}", requiredLibrary);
@@ -116,7 +111,7 @@ public AbstractPinpointPluginTestSuite(Class<?> testClass) throws Initialization
         final LibraryFilter mavenDependencyLibraryFilter = new LibraryFilter(
                 LibraryFilter.createContainsMatcher(PluginClassLoading.MAVEN_DEPENDENCY_CLASS_PATHS));
 
-        this.mavenDependencyLibraries = filterLib(classLoaderLibs, mavenDependencyLibraryFilter);
+        this.mavenDependencyLibraries = filterLibs(classPaths, mavenDependencyLibraryFilter);
         if (logger.isDebugEnabled()) {
             for (String mavenDependencyLibrary : mavenDependencyLibraries) {
                 logger.debug("mavenDependencyLibraries :{}", mavenDependencyLibrary);
@@ -187,54 +182,36 @@ private String resolveTestClassLocation(Class<?> testClass) {
         return toPathString(testClassLocation);
     }
 
-    private static class ClassLoaderLib {
-        private final ClassLoader cl;
-        private final List<URL> libs;
-
-        public ClassLoaderLib(ClassLoader cl, List<URL> libs) {
-            this.cl = cl;
-            this.libs = libs;
-        }
-
-        public ClassLoader getClassLoader() {
-            return cl;
-        }
-
-        public List<URL> getLibs() {
-            return libs;
+    private List<String> filterLibs(List<String> classPaths, LibraryFilter classPathFilter) {
+        final TreeSet<String> result = new TreeSet<>(Comparator.naturalOrder());
+        for (String classPath: classPaths) {
+            if (classPathFilter.filter(classPath)) {
+                result.add(classPath);
+            }
         }
+        return new ArrayList<>(result);
     }
 
-    private List<String> filterLib(List<ClassLoaderLib> classLoaderLibs, LibraryFilter classPathFilter) {
-        Set<String> result = new HashSet<>();
-        for (ClassLoaderLib classLoaderLib : classLoaderLibs) {
-            List<URL> libs = classLoaderLib.getLibs();
-            for (URL lib : libs) {
-                if (classPathFilter.filter(lib)) {
-                    final String filterLibs = toPathString(lib);
-                    if (filterLibs != null) {
-                        result.add(filterLibs);
-                    }
-                }
-            }
+    private List<String> getClassPathList() {
+        String classPath = SystemProperty.INSTANCE.getProperty("java.class.path");
+        if (StringUtils.isEmpty(classPath)) {
+            return Collections.emptyList();
         }
-        List<String> libs = new ArrayList<>(result);
-        libs.sort(Comparator.naturalOrder());
-        return libs;
+        String[] paths = classPath.split(":");
+        return Arrays.asList(paths);
     }
 
-    private List<ClassLoaderLib> collectLib(ClassLoader cl) {
-        List<ClassLoaderLib> libs = new ArrayList<>();
-        while (cl != null) {
-            if (cl instanceof URLClassLoader) {
-                URLClassLoader ucl = ((URLClassLoader) cl);
-                URL[] urLs = ucl.getURLs();
-                libs.add(new ClassLoaderLib(cl, Arrays.asList(urLs)));
-            }
+    @VisibleForTesting
+    static String normalizeClassPath(String classPath) {
+        return Paths.get(classPath).toAbsolutePath().normalize().toString();
+    }
 
-            cl = cl.getParent();
+    private List<String> normalizeClassPaths(List<String> classPaths) {
+        final List<String> result = new ArrayList<>(classPaths.size());
+        for (final String cp: classPaths) {
+            result.add(normalizeClassPath(cp));
         }
-        return libs;
+        return result;
     }
 
     private static String toPathString(URL url) {

test/src/main/java/com/navercorp/pinpoint/test/plugin/LibraryFilter.java

@@ -32,15 +32,19 @@ public LibraryFilter(LibraryMatcher... matchers) {
         this.matchers = Objects.requireNonNull(matchers, "matchers");
     }
 
-    public boolean filter(URL url) {
+    public boolean filter(String cp) {
         for (LibraryMatcher matcher : matchers) {
-            if (matcher.include(url.getFile())) {
+            if (matcher.include(cp)) {
                 return true;
             }
         }
         return false;
     }
 
+    public boolean filter(URL url) {
+        return filter(url.getFile());
+    }
+
     interface LibraryMatcher {
         boolean include(String filePath);
     }

test/src/test/java/com/navercorp/pinpoint/test/plugin/AbstractPinpointPluginTestSuiteTest.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2022 NAVER Corp.
+ *
+ * Licensed 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 com.navercorp.pinpoint.test.plugin;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author youngjin.kim2
+ */
+@ExtendWith(MockitoExtension.class)
+public class AbstractPinpointPluginTestSuiteTest {
+
+    @Test
+    public void normalizeShouldWork() {
+        final String result = AbstractPinpointPluginTestSuite.normalizeClassPath("./foo/bar/../zoo");
+        final String expect = System.getProperty("user.dir") + "/foo/zoo";
+        assertThat(result).isEqualTo(expect);
+    }
+
+}