* String.join works slightly different than our own join() method, so to avoid any hidden issues keep using our own as before

source/net/filebot/Settings.java

@@ -1,6 +1,7 @@
 package net.filebot;
 
 import static net.filebot.util.FileUtilities.*;
+import static net.filebot.util.StringUtilities.*;
 
 import java.awt.GraphicsEnvironment;
 import java.io.File;
@@ -285,14 +286,14 @@ public final class Settings {
 	}
 
 	public static String getApplicationIdentifier() {
-		return String.join(" ", getApplicationName(), getApplicationVersion(), String.format("(r%s)", getApplicationRevisionNumber()));
+		return join(" ", getApplicationName(), getApplicationVersion(), String.format("(r%s)", getApplicationRevisionNumber()));
 	}
 
 	public static String getJavaRuntimeIdentifier() {
 		String name = System.getProperty("java.runtime.name");
 		String version = System.getProperty("java.version");
 		String headless = GraphicsEnvironment.isHeadless() ? "(headless)" : null;
-		return String.join(" ", name, version, headless);
+		return join(" ", name, version, headless);
 	}
 
 	private static String[] applicationArgumentArray;

source/net/filebot/WebServices.java

@@ -5,6 +5,7 @@ import static java.util.Collections.*;
 import static net.filebot.Settings.*;
 import static net.filebot.media.MediaDetection.*;
 import static net.filebot.util.FileUtilities.*;
+import static net.filebot.util.StringUtilities.*;
 
 import java.io.IOException;
 import java.util.LinkedHashSet;
@@ -256,7 +257,7 @@ public final class WebServices {
 			if (LOGIN_OPENSUBTITLES.equals(id)) {
 				String password_md5 = md5(password);
 				OpenSubtitles.setUser(user, password_md5);
-				Settings.forPackage(WebServices.class).put(id, String.join(LOGIN_SEPARATOR, user, password_md5));
+				Settings.forPackage(WebServices.class).put(id, join(LOGIN_SEPARATOR, user, password_md5));
 			} else {
 				throw new IllegalArgumentException();
 			}

source/net/filebot/format/MediaBindingBean.java

@@ -157,7 +157,7 @@ public class MediaBindingBean {
 		for (Episode it : getEpisodes()) {
 			title.add(removeTrailingBrackets(it.getTitle()));
 		}
-		return truncateText(String.join(" & ", title), limit);
+		return truncateText(join(title, " & "), limit);
 	}
 
 	@Define("d")
@@ -353,7 +353,7 @@ public class MediaBindingBean {
 			return null;
 
 		// e.g. 1280x720
-		return String.join("x", dim.get(0).toString(), dim.get(1).toString());
+		return join(dim, "x");
 	}
 
 	@Define("ws")

source/net/filebot/media/MediaDetection.java

@@ -7,6 +7,7 @@ import static net.filebot.Settings.*;
 import static net.filebot.similarity.CommonSequenceMatcher.*;
 import static net.filebot.similarity.Normalization.*;
 import static net.filebot.util.FileUtilities.*;
+import static net.filebot.util.StringUtilities.*;
 
 import java.io.File;
 import java.io.FileFilter;
@@ -1046,7 +1047,7 @@ public class MediaDetection {
 			relativePath.addFirst(it.getName());
 		}
 
-		return relativePath.isEmpty() ? null : new File(String.join(File.separator, relativePath));
+		return relativePath.isEmpty() ? null : new File(join(relativePath, File.separator));
 	}
 
 	public static Map<File, List<File>> mapByMediaFolder(Collection<File> files) {

source/net/filebot/media/ReleaseInfo.java

@@ -38,7 +38,6 @@ import net.filebot.web.CachedResource;
 import net.filebot.web.Movie;
 import net.filebot.web.SubtitleSearchResult;
 import net.filebot.web.TheTVDBSearchResult;
-import net.filebot.web.SubtitleSearchResult.Kind;
 
 import org.tukaani.xz.XZInputStream;
 

source/net/filebot/similarity/EpisodeMetrics.java

@@ -5,6 +5,7 @@ import static java.util.Collections.*;
 import static java.util.regex.Pattern.*;
 import static net.filebot.similarity.Normalization.*;
 import static net.filebot.util.FileUtilities.*;
+import static net.filebot.util.StringUtilities.*;
 
 import java.io.File;
 import java.io.IOException;
@@ -435,7 +436,7 @@ public enum EpisodeMetrics implements SimilarityMetric {
 			while (scanner.hasNextInt()) {
 				numbers.add(String.valueOf(scanner.nextInt()));
 			}
-			return String.join(" ", numbers);
+			return join(numbers, " ");
 		}
 	}),
 

source/net/filebot/similarity/SeriesNameMatcher.java

@@ -4,6 +4,7 @@ import static java.util.Collections.*;
 import static java.util.regex.Pattern.*;
 import static net.filebot.similarity.CommonSequenceMatcher.*;
 import static net.filebot.similarity.Normalization.*;
+import static net.filebot.util.StringUtilities.*;
 
 import java.io.File;
 import java.text.CollationKey;
@@ -99,7 +100,7 @@ public class SeriesNameMatcher {
 		whitelist.addAll(deepMatchAll(focus, threshold));
 
 		// 1. use pattern matching
-		seriesNames.addAll(flatMatchAll(names, compile(String.join("|", whitelist), CASE_INSENSITIVE | UNICODE_CHARACTER_CLASS), threshold, false));
+		seriesNames.addAll(flatMatchAll(names, compile(join(whitelist, "|"), CASE_INSENSITIVE | UNICODE_CHARACTER_CLASS), threshold, false));
 
 		// 2. use common word sequences
 		seriesNames.addAll(whitelist);

source/net/filebot/subtitle/SubRipReader.java

@@ -1,5 +1,7 @@
 package net.filebot.subtitle;
 
+import static net.filebot.util.StringUtilities.*;
+
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
@@ -48,7 +50,7 @@ public class SubRipReader extends SubtitleReader {
 			lines.add(line);
 		}
 
-		return new SubtitleElement(t1, t2, resolve(String.join("\n", lines)));
+		return new SubtitleElement(t1, t2, resolve(join(lines, "\n")));
 	}
 
 	protected String resolve(String text) {

source/net/filebot/ui/rename/EpisodeListMatcher.java

@@ -6,6 +6,7 @@ import static net.filebot.Settings.*;
 import static net.filebot.WebServices.*;
 import static net.filebot.media.MediaDetection.*;
 import static net.filebot.util.FileUtilities.*;
+import static net.filebot.util.StringUtilities.*;
 import static net.filebot.util.ui.SwingUI.*;
 
 import java.awt.Component;
@@ -285,7 +286,7 @@ class EpisodeListMatcher implements AutoCompleteMatcher {
 		if (episodes.isEmpty() && !strict) {
 			List<String> detectedSeriesNames = detectSeriesNames(files, useSeriesIndex, useAnimeIndex, locale);
 			String parentPathHint = normalizePathSeparators(getRelativePathTail(files.get(0).getParentFile(), 2).getPath());
-			String suggestion = detectedSeriesNames.size() > 0 ? String.join("; ", detectedSeriesNames) : parentPathHint;
+			String suggestion = detectedSeriesNames.size() > 0 ? join(detectedSeriesNames, "; ") : parentPathHint;
 
 			List<String> input;
 			synchronized (inputMemory) {

source/net/filebot/ui/rename/HistoryDialog.java

@@ -1,6 +1,5 @@
 package net.filebot.ui.rename;
 
-import static net.filebot.util.ui.SwingUI.*;
 import static java.awt.Font.*;
 import static java.util.Arrays.*;
 import static java.util.Collections.*;
@@ -9,6 +8,7 @@ import static javax.swing.JOptionPane.*;
 import static net.filebot.Settings.*;
 import static net.filebot.UserFiles.*;
 import static net.filebot.util.FileUtilities.*;
+import static net.filebot.util.ui.SwingUI.*;
 
 import java.awt.Color;
 import java.awt.Component;

source/net/filebot/ui/rename/RenameList.java

@@ -1,7 +1,7 @@
 package net.filebot.ui.rename;
 
-import static net.filebot.util.ui.SwingUI.*;
 import static java.util.Collections.*;
+import static net.filebot.util.ui.SwingUI.*;
 
 import java.awt.BorderLayout;
 import java.awt.event.ActionEvent;

source/net/filebot/ui/subtitle/SubtitleAutoMatchDialog.java

@@ -61,8 +61,6 @@ import javax.swing.table.DefaultTableCellRenderer;
 
 import net.filebot.ResourceManager;
 import net.filebot.mac.MacAppUtilities;
-import net.filebot.similarity.EpisodeMetrics;
-import net.filebot.similarity.MetricCascade;
 import net.filebot.similarity.SimilarityMetric;
 import net.filebot.subtitle.SubtitleMetrics;
 import net.filebot.subtitle.SubtitleNaming;

source/net/filebot/ui/subtitle/SubtitleViewer.java

@@ -22,7 +22,6 @@ import java.util.regex.Pattern;
 
 import javax.swing.AbstractAction;
 import javax.swing.Action;
-import javax.swing.JButton;
 import javax.swing.JComponent;
 import javax.swing.JFrame;
 import javax.swing.JLabel;

source/net/filebot/util/StringUtilities.java

@@ -4,7 +4,6 @@ import static java.util.Arrays.*;
 
 import java.util.Arrays;
 import java.util.Comparator;
-import java.util.Iterator;
 
 public final class StringUtilities {
 
@@ -16,6 +15,14 @@ public final class StringUtilities {
 		return object == null || object.toString().length() == 0;
 	}
 
+	public static String join(Iterable<?> values, CharSequence delimiter) {
+		return join(values, delimiter, "", "");
+	}
+
+	public static String join(CharSequence delimiter, Object... values) {
+		return join(asList(values), delimiter, "", "");
+	}
+
 	public static String join(Object[] values, CharSequence delimiter) {
 		return join(asList(values), delimiter, "", "");
 	}

source/net/filebot/web/EpisodeFormat.java

@@ -1,5 +1,7 @@
 package net.filebot.web;
 
+import static net.filebot.util.StringUtilities.*;
+
 import java.text.FieldPosition;
 import java.text.Format;
 import java.text.ParseException;
@@ -108,8 +110,7 @@ public class EpisodeFormat extends Format {
 			sxe.add(formatSxE(it));
 			title.add(it.getTitle().replaceAll("[(]([^)]*)[)]$", "").trim());
 		}
-
-		return String.format("%s - %s - %s", String.join(" & ", name), String.join(" & ", sxe), String.join(" & ", title));
+		return String.format("%s - %s - %s", join(name, " & "), join(" & ", sxe), join(" & ", title));
 	}
 
 	public String formatMultiSxE(Iterable<Episode> episodes) {