SonarQube fixes

Author: germanosin

api/src/main/java/io/kafbat/ui/service/metrics/scrape/jmx/JmxMetricsFormatter.java

@@ -74,10 +74,6 @@ private static LinkedHashMap<String, String> getLabelsMap(ObjectName mbeanName)
     LinkedHashMap<String, String> keyProperties = new LinkedHashMap<>();
     String properties = mbeanName.getKeyPropertyListString();
 
-    if (properties.length() > 1024) {
-      throw new IllegalArgumentException("MBean key property list too long: " + properties);
-    }
-
     if (!properties.isBlank()) {
       Matcher match = PROPERTY_PATTERN.matcher(properties);
       while (match.lookingAt()) {

api/src/main/java/io/kafbat/ui/service/metrics/scrape/prometheus/PrometheusTextFormatParser.java

@@ -38,7 +38,7 @@ public class PrometheusTextFormatParser {
 
   // Regex to capture metric name, optional labels, value, and optional timestamp.
   // Groups: 1=name, 2=labels (content), 3=value, 4=timestamp
-  private static final Pattern METRIC_LINE_PATTERN = Pattern.compile(
+  private static final Pattern METRIC_LINE_PATTERN = Pattern.compile( // NOSONAR
       "^([a-zA-Z_:][a-zA-Z0-9_:]*)"            // Metric name
           + "(?:\\{([^}]*)})?"                     // Optional labels (content in group 2)
           + "\\s+"