Fix CodeQL warnings

etw/etw-testapp/src/main/java/com/microsoft/applicationinsights/etw_testapp/EtwTestController.java

@@ -1,15 +1,13 @@
 package com.microsoft.applicationinsights.etw_testapp;
 
+import com.microsoft.applicationinsights.agent.internal.diagnostics.etw.DiagnosticsLoggerProxy;
+import java.util.concurrent.atomic.AtomicInteger;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
-import java.util.concurrent.atomic.AtomicInteger;
-
-import com.microsoft.applicationinsights.agent.internal.diagnostics.etw.DiagnosticsLoggerProxy;
-
 @RestController
 public class EtwTestController {
   private static final DiagnosticsLoggerProxy DIAGNOSTICS_LOGGER = new DiagnosticsLoggerProxy();
@@ -51,7 +49,6 @@ public ResponseEntity<String> logPage(
       default:
         return ResponseEntity.notFound().build();
     }
-    return ResponseEntity.ok(
-        level.toUpperCase() + " " + n + (t == null ? "" : "<br/>\n" + t.toString()));
+    return ResponseEntity.ok();
   }
 }

etw/etw-testapp/src/main/java/com/microsoft/applicationinsights/etw_testapp/LongTestController.java

@@ -1,5 +1,6 @@
 package com.microsoft.applicationinsights.etw_testapp;
 
+import com.microsoft.applicationinsights.agent.internal.diagnostics.etw.DiagnosticsLoggerProxy;
 import java.math.BigInteger;
 import java.text.SimpleDateFormat;
 import java.time.Duration;
@@ -11,9 +12,6 @@
 import java.util.concurrent.atomic.AtomicLong;
 import java.util.concurrent.atomic.AtomicReference;
 import java.util.function.BinaryOperator;
-
-import com.microsoft.applicationinsights.agent.internal.diagnostics.etw.DiagnosticsLoggerProxy;
-
 import org.apache.commons.lang3.RandomUtils;
 import org.apache.commons.lang3.exception.ExceptionUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -246,14 +244,7 @@ public ResponseEntity<String> startTest(
         period = Duration.parse("PT" + periodStr);
       }
     } catch (NumberFormatException | DateTimeParseException e) {
-      return ResponseEntity.badRequest()
-          .body(
-              "<p>Period parameter 'T' could not parse \""
-                  + periodStr
-                  + "\"</p>"
-                  + "<p><pre>"
-                  + ExceptionUtils.getStackTrace(e)
-                  + "</p>");
+      return ResponseEntity.badRequest().body("Period parameter could not be parsed");
     }
 
     final long startTime;