explicit split(s, 0) this is the behavior we want here

.lift.toml

@@ -0,0 +1,3 @@
+ignoreFiles = """
+src/site/hugo/
+"""

src/main/java/org/sonatype/goodies/packageurl/PackageUrl.java

@@ -144,7 +144,7 @@ public boolean equals(final Object o) {
     if (this == o) {
       return true;
     }
-    if (o == null || getClass() != o.getClass()) {
+    if (!(o instanceof PackageUrl)) {
       return false;
     }
     PackageUrl that = (PackageUrl) o;

src/main/java/org/sonatype/goodies/packageurl/PackageUrlParser.java

@@ -160,7 +160,7 @@ static Map<String, String> parseQualifiers(@Nullable final String value) {
       return null;
     }
 
-    String[] pairs = value.split("&");
+    String[] pairs = value.split("&", 0);
     Map<String, String> result = new LinkedHashMap<>(pairs.length);
     for (String pair : pairs) {
       String[] split = pair.split("=", 2); // Splits the pair into either one or two pieces
@@ -189,7 +189,7 @@ static List<String> parseSegments(@Nullable final String value, final String...
       return null;
     }
 
-    String[] parts = stripSlashes(value).split("/");
+    String[] parts = stripSlashes(value).split("/", 0);
     List<String> result = new ArrayList<>();
     for (String part : parts) {
       if (part.isEmpty()) {