Remove o.e.ant.tests.ui activator

In an effort to fix Java 21 warning about usage of deprecated URL
constructor the code has been simplified and moved to the single place
used.

Author: akurtakov

ant/org.eclipse.ant.tests.ui/META-INF/MANIFEST.MF

@@ -4,7 +4,6 @@ Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.ant.tests.ui; singleton:=true
 Bundle-Version: 3.12.0.qualifier
 Bundle-ClassPath: anttestsui.jar
-Bundle-Activator: org.eclipse.ant.tests.ui.testplugin.AntUITestPlugin
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
 Export-Package: org.eclipse.ant.tests.ui,

ant/org.eclipse.ant.tests.ui/test plugin/org/eclipse/ant/tests/ui/testplugin/AbstractAntUITest.java

@@ -25,6 +25,7 @@
 import java.io.UnsupportedEncodingException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
+import java.net.URL;
 import java.nio.file.Files;
 
 import javax.xml.parsers.SAXParser;
@@ -42,6 +43,8 @@
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.Assert;
 import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.FileLocator;
+import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
@@ -74,6 +77,8 @@
 import org.eclipse.ui.progress.UIJob;
 import org.junit.Before;
 import org.junit.Rule;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.FrameworkUtil;
 import org.xml.sax.InputSource;
 import org.xml.sax.SAXException;
 import org.xml.sax.helpers.DefaultHandler;
@@ -161,7 +166,7 @@ public static void assertProject() throws Exception {
 			IProject project = ProjectHelper.createProject(ProjectHelper.PROJECT_NAME);
 			IFolder folder = ProjectHelper.addFolder(project, "buildfiles"); //$NON-NLS-1$
 			ProjectHelper.addFolder(project, "launchConfigurations"); //$NON-NLS-1$
-			File root = AntUITestPlugin.getDefault().getFileInPlugin(ProjectHelper.TEST_BUILDFILES_DIR);
+			File root = getFileInPlugin(ProjectHelper.TEST_BUILDFILES_DIR);
 			ProjectHelper.importFilesFromDirectory(root, folder.getFullPath(), null);
 
 			ProjectHelper.createLaunchConfigurationForBoth("echoing"); //$NON-NLS-1$
@@ -191,6 +196,17 @@ public static void assertProject() throws Exception {
 		}
 	}
 
+	public static File getFileInPlugin(IPath path) {
+		try {
+			Bundle bundle = FrameworkUtil.getBundle(AbstractAntUITest.class);
+			URL installURL = bundle.getEntry("/" + path.toString()); //$NON-NLS-1$
+			URL localURL = FileLocator.toFileURL(installURL);
+			return new File(localURL.getFile());
+		} catch (IOException e) {
+			return null;
+		}
+	}
+
 	/**
 	 * Returns the 'AntUITests' project.
 	 *

ant/org.eclipse.ant.tests.ui/test plugin/org/eclipse/ant/tests/ui/testplugin/AntUITestPlugin.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- *  Copyright (c) 2000, 2013 IBM Corporation and others.
+ *  Copyright (c) 2000, 2025 IBM Corporation and others.
  *
  *  This program and the accompanying materials
  *  are made available under the terms of the Eclipse Public License 2.0
@@ -17,7 +17,6 @@
 import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.util.ArrayList;
-import java.util.Iterator;
 import java.util.List;
 
 import org.eclipse.ant.internal.ui.IAntUIConstants;
@@ -91,13 +90,6 @@ private static void addNatureToProject(IProject proj, String natureId, IProgress
 		proj.setDescription(description, monitor);
 	}
 
-	/**
-	 * Removes an IProject.
-	 */
-	public static void delete(IProject project) throws CoreException {
-		project.delete(true, true, null);
-	}
-
 	/**
 	 * Adds a folder to an IProject.
 	 */
@@ -135,9 +127,7 @@ private static void addFiles(File dir, List<File> collection) throws IOException
 				subDirs.add(file);
 			}
 		}
-		Iterator<File> iter = subDirs.iterator();
-		while (iter.hasNext()) {
-			File subDir = iter.next();
+		for (File subDir : subDirs) {
 			addFiles(subDir, collection);
 		}
 	}