[MNG-6825] Get rid of commons-lang

maven-artifact/pom.xml

@@ -30,13 +30,6 @@ under the License.
 
   <name>Maven Artifact</name>
 
-  <dependencies>
-    <dependency>
-      <groupId>org.apache.commons</groupId>
-      <artifactId>commons-lang3</artifactId>
-    </dependency>
-  </dependencies>
-
   <build>
     <plugins>
       <plugin>

maven-artifact/src/main/java/org/apache/maven/artifact/ArtifactUtils.java

@@ -25,7 +25,6 @@
 import java.util.Map;
 import java.util.regex.Matcher;
 
-import org.apache.commons.lang3.Validate;
 import org.apache.maven.artifact.versioning.VersionRange;
 
 /**
@@ -89,10 +88,15 @@ public static String key(String groupId, String artifactId, String version) {
     }
 
     private static void notBlank(String str, String message) {
-        int c = str != null && str.length() > 0 ? str.charAt(0) : 0;
-        if ((c < '0' || c > '9') && (c < 'a' || c > 'z')) {
-            Validate.notBlank(str, message);
+        final int strLen = str != null ? str.length() : 0;
+        if (strLen > 0) {
+            for (int i = 0; i < strLen; i++) {
+                if (!Character.isWhitespace(str.charAt(i))) {
+                    return;
+                }
+            }
         }
+        throw new IllegalArgumentException(message);
     }
 
     public static Map<String, Artifact> artifactMapByVersionlessId(Collection<Artifact> artifacts) {

maven-artifact/src/main/java/org/apache/maven/artifact/versioning/DefaultArtifactVersion.java

@@ -20,8 +20,6 @@
 
 import java.util.StringTokenizer;
 
-import static org.apache.commons.lang3.math.NumberUtils.isDigits;
-
 /**
  * Default implementation of artifact versioning.
  *
@@ -168,6 +166,19 @@ public final void parseVersion(String version) {
         }
     }
 
+    private static boolean isDigits(String cs) {
+        if (cs == null || cs.isEmpty()) {
+            return false;
+        }
+        final int sz = cs.length();
+        for (int i = 0; i < sz; i++) {
+            if (!Character.isDigit(cs.charAt(i))) {
+                return false;
+            }
+        }
+        return true;
+    }
+
     private static Integer getNextIntegerToken(StringTokenizer tok) {
         String s = tok.nextToken();
         if ((s.length() > 1) && s.startsWith("0")) {

maven-compat/src/main/java/org/apache/maven/artifact/repository/metadata/MetadataBridge.java

@@ -19,10 +19,10 @@
 package org.apache.maven.artifact.repository.metadata;
 
 import java.io.File;
+import java.nio.file.Files;
 import java.util.Collections;
 import java.util.Map;
 
-import org.apache.commons.io.FileUtils;
 import org.apache.maven.artifact.metadata.ArtifactMetadata;
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.artifact.repository.DefaultArtifactRepository;
@@ -50,7 +50,8 @@ public MetadataBridge(ArtifactMetadata metadata) {
     public void merge(File current, File result) throws RepositoryException {
         try {
             if (current.exists()) {
-                FileUtils.copyFile(current, result);
+                Files.createDirectories(result.toPath().getParent());
+                Files.copy(current.toPath(), result.toPath());
             }
             ArtifactRepository localRepo = new MetadataRepository(result);
             metadata.storeInLocalRepository(localRepo, localRepo);

maven-compat/src/test/java/org/apache/maven/artifact/deployer/ArtifactDeployerTest.java

@@ -21,8 +21,9 @@
 import javax.inject.Inject;
 
 import java.io.File;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
 
-import org.apache.commons.io.FileUtils;
 import org.apache.maven.artifact.AbstractArtifactComponentTestCase;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.repository.ArtifactRepository;
@@ -60,15 +61,14 @@ public void testArtifactInstallation() throws Exception {
             Artifact artifact = createArtifact("artifact", "1.0");
 
             File file = new File(artifactBasedir, "artifact-1.0.jar");
-            assertEquals("dummy", FileUtils.readFileToString(file, "UTF-8").trim());
+            assertEquals("dummy", new String(Files.readAllBytes(file.toPath()), StandardCharsets.UTF_8).trim());
 
             artifactDeployer.deploy(file, artifact, remoteRepository(), localRepository());
 
             ArtifactRepository remoteRepository = remoteRepository();
             File deployedFile = new File(remoteRepository.getBasedir(), remoteRepository.pathOf(artifact));
             assertTrue(deployedFile.exists());
-            assertEquals(
-                    "dummy", FileUtils.readFileToString(deployedFile, "UTF-8").trim());
+            assertEquals("dummy", new String(Files.readAllBytes(deployedFile.toPath()), StandardCharsets.UTF_8).trim());
         } finally {
             sessionScope.exit();
         }

maven-core/pom.xml

@@ -123,10 +123,6 @@ under the License.
       <groupId>com.google.guava</groupId>
       <artifactId>failureaccess</artifactId>
     </dependency>
-    <dependency>
-      <groupId>commons-io</groupId>
-      <artifactId>commons-io</artifactId>
-    </dependency>
     <dependency>
       <groupId>javax.inject</groupId>
       <artifactId>javax.inject</artifactId>
@@ -140,10 +136,6 @@ under the License.
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-classworlds</artifactId>
     </dependency>
-    <dependency>
-      <groupId>org.apache.commons</groupId>
-      <artifactId>commons-lang3</artifactId>
-    </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-api</artifactId>
@@ -158,6 +150,11 @@ under the License.
       <artifactId>commons-jxpath</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>commons-io</groupId>
+      <artifactId>commons-io</artifactId>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>

maven-core/src/main/java/org/apache/maven/configuration/DefaultBeanConfigurationRequest.java

@@ -18,13 +18,13 @@
  */
 package org.apache.maven.configuration;
 
-import org.apache.commons.lang3.Validate;
+import java.util.Objects;
+
 import org.apache.maven.model.Build;
 import org.apache.maven.model.Model;
 import org.apache.maven.model.Plugin;
 import org.apache.maven.model.PluginExecution;
 import org.apache.maven.model.PluginManagement;
-import org.codehaus.plexus.util.StringUtils;
 
 /**
  * A basic bean configuration request.
@@ -89,7 +89,7 @@ public DefaultBeanConfigurationRequest setConfiguration(
             Model model, String pluginGroupId, String pluginArtifactId, String pluginExecutionId) {
         Plugin plugin = findPlugin(model, pluginGroupId, pluginArtifactId);
         if (plugin != null) {
-            if (StringUtils.isNotEmpty(pluginExecutionId)) {
+            if (pluginExecutionId != null && !pluginExecutionId.isEmpty()) {
                 for (PluginExecution execution : plugin.getExecutions()) {
                     if (pluginExecutionId.equals(execution.getId())) {
                         setConfiguration(execution.getConfiguration());
@@ -104,8 +104,12 @@ public DefaultBeanConfigurationRequest setConfiguration(
     }
 
     private Plugin findPlugin(Model model, String groupId, String artifactId) {
-        Validate.notBlank(groupId, "groupId can neither be null, empty nor blank");
-        Validate.notBlank(artifactId, "artifactId can neither be null, empty nor blank");
+        if (Objects.requireNonNull(groupId, "groupId cannot be null").isEmpty()) {
+            throw new IllegalArgumentException("groupId cannot be empty");
+        }
+        if (Objects.requireNonNull(artifactId, "artifactId cannot be null").isEmpty()) {
+            throw new IllegalArgumentException("artifactId cannot be empty");
+        }
 
         if (model != null) {
             Build build = model.getBuild();

maven-core/src/main/java/org/apache/maven/execution/DefaultBuildResumptionDataRepository.java

@@ -30,7 +30,6 @@
 import java.util.Properties;
 import java.util.stream.Stream;
 
-import org.apache.commons.lang3.StringUtils;
 import org.apache.maven.project.MavenProject;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -109,10 +108,11 @@ private Properties loadResumptionFile(Path rootBuildDirectory) {
 
     // This method is made package-private for testing purposes
     void applyResumptionProperties(MavenExecutionRequest request, Properties properties) {
-        if (properties.containsKey(REMAINING_PROJECTS) && StringUtils.isEmpty(request.getResumeFrom())) {
+        String str1 = request.getResumeFrom();
+        if (properties.containsKey(REMAINING_PROJECTS) && !(str1 != null && !str1.isEmpty())) {
             String propertyValue = properties.getProperty(REMAINING_PROJECTS);
             Stream.of(propertyValue.split(PROPERTY_DELIMITER))
-                    .filter(StringUtils::isNotEmpty)
+                    .filter(str -> str != null && !str.isEmpty())
                     .forEach(request.getProjectActivation()::activateOptionalProject);
             LOGGER.info("Resuming from {} due to the --resume / -r feature.", propertyValue);
         }

maven-core/src/main/java/org/apache/maven/internal/impl/DefaultArtifactCoordinateFactory.java

@@ -21,7 +21,6 @@
 import javax.inject.Named;
 import javax.inject.Singleton;
 
-import org.apache.commons.lang3.StringUtils;
 import org.apache.maven.api.ArtifactCoordinate;
 import org.apache.maven.api.annotations.Nonnull;
 import org.apache.maven.api.services.ArtifactCoordinateFactory;
@@ -43,12 +42,12 @@ public ArtifactCoordinate create(@Nonnull ArtifactCoordinateFactoryRequest reque
         if (request.getType() != null) {
             type = session.getSession().getArtifactTypeRegistry().get(request.getType());
         }
-        String classifier = StringUtils.isNotEmpty(request.getClassifier())
-                ? request.getClassifier()
-                : type != null ? type.getClassifier() : "";
-        String extension = StringUtils.isNotEmpty(request.getExtension())
-                ? request.getExtension()
-                : type != null ? type.getExtension() : "";
+        String str1 = request.getClassifier();
+        String classifier =
+                str1 != null && !str1.isEmpty() ? request.getClassifier() : type != null ? type.getClassifier() : "";
+        String str = request.getExtension();
+        String extension =
+                str != null && !str.isEmpty() ? request.getExtension() : type != null ? type.getExtension() : "";
         return new DefaultArtifactCoordinate(
                 session,
                 new org.eclipse.aether.artifact.DefaultArtifact(

maven-core/src/main/java/org/apache/maven/internal/impl/DefaultArtifactFactory.java

@@ -21,7 +21,6 @@
 import javax.inject.Named;
 import javax.inject.Singleton;
 
-import org.apache.commons.lang3.StringUtils;
 import org.apache.maven.api.Artifact;
 import org.apache.maven.api.annotations.Nonnull;
 import org.apache.maven.api.services.ArtifactFactory;
@@ -43,12 +42,12 @@ public Artifact create(@Nonnull ArtifactFactoryRequest request) {
         if (request.getType() != null) {
             type = session.getSession().getArtifactTypeRegistry().get(request.getType());
         }
-        String classifier = StringUtils.isNotEmpty(request.getClassifier())
-                ? request.getClassifier()
-                : type != null ? type.getClassifier() : null;
-        String extension = StringUtils.isNotEmpty(request.getExtension())
-                ? request.getExtension()
-                : type != null ? type.getExtension() : null;
+        String str1 = request.getClassifier();
+        String classifier =
+                str1 != null && !str1.isEmpty() ? request.getClassifier() : type != null ? type.getClassifier() : null;
+        String str = request.getExtension();
+        String extension =
+                str != null && !str.isEmpty() ? request.getExtension() : type != null ? type.getExtension() : null;
         return new DefaultArtifact(
                 session,
                 new org.eclipse.aether.artifact.DefaultArtifact(

maven-core/src/main/java/org/apache/maven/plugin/internal/MavenPluginJavaPrerequisiteChecker.java

@@ -24,7 +24,6 @@
 
 import org.apache.maven.plugin.MavenPluginPrerequisitesChecker;
 import org.apache.maven.plugin.descriptor.PluginDescriptor;
-import org.codehaus.plexus.util.StringUtils;
 import org.eclipse.aether.version.InvalidVersionSpecificationException;
 import org.eclipse.aether.version.Version;
 import org.eclipse.aether.version.VersionConstraint;
@@ -44,7 +43,7 @@ public MavenPluginJavaPrerequisiteChecker(final VersionScheme versionScheme) {
     @Override
     public void accept(PluginDescriptor pluginDescriptor) {
         String requiredJavaVersion = pluginDescriptor.getRequiredJavaVersion();
-        if (StringUtils.isNotBlank(requiredJavaVersion)) {
+        if (requiredJavaVersion != null && !requiredJavaVersion.isEmpty()) {
             String currentJavaVersion = System.getProperty("java.version");
             if (!matchesVersion(requiredJavaVersion, currentJavaVersion)) {
                 throw new IllegalStateException("Required Java version " + requiredJavaVersion

maven-core/src/main/java/org/apache/maven/project/artifact/ProjectArtifactMetadata.java

@@ -20,8 +20,8 @@
 
 import java.io.File;
 import java.io.IOException;
+import java.nio.file.Files;
 
-import org.apache.commons.io.FileUtils;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.metadata.AbstractArtifactMetadata;
 import org.apache.maven.artifact.metadata.ArtifactMetadata;
@@ -74,7 +74,8 @@ public void storeInLocalRepository(ArtifactRepository localRepository, ArtifactR
         // ----------------------------------------------------------------------------
 
         try {
-            FileUtils.copyFile(file, destination);
+            Files.createDirectories(destination.toPath().getParent());
+            Files.copy(file.toPath(), destination.toPath());
         } catch (IOException e) {
             throw new RepositoryMetadataStoreException("Error copying POM to the local repository.", e);
         }

maven-core/src/main/java/org/apache/maven/rtinfo/internal/DefaultRuntimeInformation.java

@@ -24,10 +24,9 @@
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Objects;
 import java.util.Properties;
 
-import org.apache.commons.lang3.StringUtils;
-import org.apache.commons.lang3.Validate;
 import org.apache.maven.rtinfo.RuntimeInformation;
 import org.eclipse.aether.version.InvalidVersionSpecificationException;
 import org.eclipse.aether.version.Version;
@@ -90,7 +89,9 @@ private String loadMavenVersion() {
 
     @Override
     public boolean isMavenVersion(String versionRange) {
-        Validate.notBlank(versionRange, "versionRange can neither be null, empty nor blank");
+        if (Objects.requireNonNull(versionRange, "versionRange cannot be null").isEmpty()) {
+            throw new IllegalArgumentException("versionRange cannot be empty");
+        }
 
         VersionConstraint constraint;
         try {
@@ -102,7 +103,9 @@ public boolean isMavenVersion(String versionRange) {
         Version current;
         try {
             String mavenVersion = getMavenVersion();
-            Validate.validState(StringUtils.isNotEmpty(mavenVersion), "Could not determine current Maven version");
+            if (mavenVersion.isEmpty()) {
+                throw new IllegalArgumentException("Could not determine current Maven version");
+            }
 
             current = versionScheme.parseVersion(mavenVersion);
         } catch (InvalidVersionSpecificationException e) {

maven-core/src/test/java/org/apache/maven/artifact/handler/ArtifactHandlerTest.java

@@ -21,9 +21,9 @@
 import javax.inject.Inject;
 
 import java.io.File;
+import java.nio.file.Files;
 import java.util.List;
 
-import org.apache.commons.io.FileUtils;
 import org.codehaus.plexus.PlexusContainer;
 import org.codehaus.plexus.testing.PlexusTest;
 import org.junit.jupiter.api.Test;
@@ -40,7 +40,7 @@ public class ArtifactHandlerTest {
     public void testAptConsistency() throws Exception {
         File apt = getTestFile("src/site/apt/artifact-handlers.apt");
 
-        List<String> lines = FileUtils.readLines(apt);
+        List<String> lines = Files.readAllLines(apt.toPath());
 
         for (String line : lines) {
             if (line.startsWith("||")) {

maven-core/src/test/java/org/apache/maven/internal/impl/TestRepositorySystem.java

@@ -24,12 +24,12 @@
 
 import java.io.File;
 import java.io.IOException;
+import java.nio.file.Files;
 import java.util.ArrayList;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
-import org.apache.commons.io.FileUtils;
 import org.apache.maven.api.model.Model;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.DefaultArtifact;
@@ -274,7 +274,8 @@ private void resolve(Artifact artifact, ArtifactResolutionRequest request) throw
 
             File remoteFile = new File(remoteRepo.getBasedir(), remoteRepo.pathOf(artifact));
 
-            FileUtils.copyFile(remoteFile, localFile);
+            Files.createDirectories(localFile.toPath().getParent());
+            Files.copy(remoteFile.toPath(), localFile.toPath());
         }
 
         artifact.setResolved(true);