Fix: `!=` is not supported in oal when parameters are numbers (#6968)

CHANGES.md

@@ -43,6 +43,7 @@ Release Notes.
 * Allow multiple definitions as fallback in metadata-service-mapping.yaml file.
 * Fix: NPE when configmap has no data.
 * Fix: Dynamic Configuration key `slowTraceSegmentThreshold` not work
+* Fix: `!=` is not supported in oal when parameters are numbers.
 
 #### UI
 * Add logo for kong plugin.

oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/metrics/expression/NotEqualMatch.java

@@ -23,6 +23,11 @@ import org.apache.skywalking.oap.server.core.analysis.metrics.annotation.FilterM
 
 @FilterMatcher
 public class NotEqualMatch {
+
+    public boolean match(int left, int right) {
+        return left != right;
+    }
+
     public boolean match(Object left, Object right) {
         return !Objects.equals(left, right);
     }