diff --git a/source/net/filebot/media/ReleaseInfo.java b/source/net/filebot/media/ReleaseInfo.java
index 5b4c9633..ec031f38 100644
--- a/source/net/filebot/media/ReleaseInfo.java
+++ b/source/net/filebot/media/ReleaseInfo.java
@@ -520,7 +520,7 @@ public class ReleaseInfo {
 	}
 
 	private String or(Object[] terms) {
-		return joinSorted(terms, "|", reverseOrder(), "(", ")"); // non-capturing group that matches the longest occurrence
+		return join(stream(terms).sorted(reverseOrder()), "|", "(", ")"); // non-capturing group that matches the longest occurrence
 	}
 
 	private String[] quoteAll(Collection<String> values) {
diff --git a/source/net/filebot/util/JsonUtilities.java b/source/net/filebot/util/JsonUtilities.java
index c43d8312..73d7e365 100644
--- a/source/net/filebot/util/JsonUtilities.java
+++ b/source/net/filebot/util/JsonUtilities.java
@@ -73,7 +73,7 @@ public class JsonUtilities {
 	}
 
 	public static String getString(Object node, String key) {
-		return nonEmptyOrNull(asMap(node).get(key));
+		return StringUtilities.asNonEmptyString(asMap(node).get(key));
 	}
 
 	public static Integer getInteger(Object node, String key) {
@@ -97,7 +97,7 @@ public class JsonUtilities {
 	}
 
 	public static <K extends Enum<K>> EnumMap<K, String> mapStringValues(Object node, Class<K> cls) {
-		return mapValues(node, cls, JsonUtilities::nonEmptyOrNull);
+		return mapValues(node, cls, StringUtilities::asNonEmptyString);
 	}
 
 	public static <K extends Enum<K>, V> EnumMap<K, V> mapValues(Object node, Class<K> cls, Function<Object, V> converter) {
@@ -115,14 +115,4 @@ public class JsonUtilities {
 		return map;
 	}
 
-	public static String nonEmptyOrNull(Object object) {
-		if (object != null) {
-			String string = object.toString();
-			if (string.length() > 0) {
-				return string;
-			}
-		}
-		return null;
-	}
-
 }
diff --git a/source/net/filebot/util/StringUtilities.java b/source/net/filebot/util/StringUtilities.java
index 983541dd..35cdb87a 100644
--- a/source/net/filebot/util/StringUtilities.java
+++ b/source/net/filebot/util/StringUtilities.java
@@ -2,12 +2,15 @@ package net.filebot.util;
 
 import static java.util.Arrays.*;
 import static java.util.Collections.*;
+import static java.util.stream.Collectors.*;
 
 import java.util.ArrayList;
-import java.util.Comparator;
+import java.util.Collection;
 import java.util.List;
+import java.util.Objects;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.stream.Stream;
 
 public final class StringUtilities {
 
@@ -53,39 +56,38 @@ public final class StringUtilities {
 		return object == null ? null : object.toString();
 	}
 
+	public static String asNonEmptyString(Object object) {
+		if (object != null) {
+			String string = object.toString();
+			if (string.length() > 0) {
+				return string;
+			}
+		}
+		return null;
+	}
+
 	public static boolean isEmpty(Object object) {
 		return object == null || object.toString().length() == 0;
 	}
 
-	public static String join(Iterable<?> values, CharSequence delimiter) {
-		return join(values, delimiter, "", "");
+	public static boolean nonEmpty(Object object) {
+		return object != null && object.toString().length() > 0;
+	}
+
+	public static String join(Collection<?> values, CharSequence delimiter) {
+		return join(values.stream(), delimiter, "", "");
 	}
 
 	public static String join(CharSequence delimiter, Object... values) {
-		return join(asList(values), delimiter, "", "");
+		return join(stream(values), delimiter, "", "");
 	}
 
 	public static String join(Object[] values, CharSequence delimiter) {
-		return join(asList(values), delimiter, "", "");
+		return join(stream(values), delimiter, "", "");
 	}
 
-	public static String joinSorted(Object[] values, CharSequence delimiter, Comparator<Object> sort, CharSequence start, CharSequence end) {
-		return join(stream(values).sorted(sort)::iterator, delimiter, start, end);
-	}
-
-	public static String join(Iterable<?> values, CharSequence delimiter, CharSequence start, CharSequence end) {
-		StringBuilder sb = new StringBuilder().append(start);
-
-		for (Object value : values) {
-			if (!isEmpty(value)) {
-				if (sb.length() > start.length()) {
-					sb.append(delimiter);
-				}
-				sb.append(value);
-			}
-		}
-
-		return sb.append(end).toString();
+	public static String join(Stream<?> values, CharSequence delimiter, CharSequence prefix, CharSequence suffix) {
+		return values.map(StringUtilities::asNonEmptyString).filter(Objects::nonNull).collect(joining(delimiter, prefix, suffix));
 	}
 
 	/**