IGNITE-28408 Fix comments

Author: chesnokoff

modules/core/src/main/java/org/apache/ignite/internal/processors/performancestatistics/FilePerformanceStatisticsReader.java

@@ -239,20 +239,18 @@ private boolean deserialize(ByteBuffer buf, UUID nodeId, boolean firstRecord) th
             short ver = buf.getShort();
             String ignVer = null;
 
-            if (ver == FILE_FORMAT_VERSION) {
+            if (ver > LEGACY_FILE_FORMAT_VERSION_1) {
                 ForwardableString verStr = readString(buf);
 
                 if (verStr == null)
                     return false;
 
                 ignVer = verStr.str;
             }
-            else if (ver != LEGACY_FILE_FORMAT_VERSION_1)
-                throw new IgniteException("Unsupported file format version [fileVer=" + ver + ", currentVer=" +
-                    FILE_FORMAT_VERSION + ']');
 
-            for (PerformanceStatisticsHandler hnd : curHnd)
-                hnd.version(nodeId, ignVer);
+            if (ver != FILE_FORMAT_VERSION && ver != LEGACY_FILE_FORMAT_VERSION_1)
+                throw new IgniteException("Unsupported file format version [fileVer=" + ver + ", fileIgniteVer=" + ignVer + ", currentFileVer=" +
+                    FILE_FORMAT_VERSION + ']');
 
             return true;
         }

modules/core/src/main/java/org/apache/ignite/internal/processors/performancestatistics/PerformanceStatisticsHandler.java

@@ -29,14 +29,6 @@
  * performance analysis.
  */
 public interface PerformanceStatisticsHandler {
-    /**
-     * @param nodeId Node id.
-     * @param ignVer Ignite version stored in file header, if present.
-     */
-    default void version(UUID nodeId, @Nullable String ignVer) {
-        // No-op.
-    }
-
     /**
      * @param nodeId Node id.
      * @param cacheId Cache id.

modules/core/src/test/java/org/apache/ignite/internal/processors/performancestatistics/ForwardReadQueryPropertyTest.java

@@ -71,10 +71,6 @@ public void testStringForwardRead() throws Exception {
         Map<String, String> actualProps = new HashMap<>();
 
         new FilePerformanceStatisticsReader(BUFFER_SIZE, new TestHandler() {
-            @Override public void version(UUID nodeId, String ignVer) {
-                assertEquals(ForwardReadQueryPropertyTest.this.fileFormatVer == LEGACY_FILE_FORMAT_VERSION_1 ? null : VER_STR, ignVer);
-            }
-
             @Override public void queryProperty(UUID nodeId, GridCacheQueryType type, UUID qryNodeId, long id, String name, String val) {
                 assertNotNull(name);
                 assertNotNull(val);