IGNITE-24941 Remove unused code from IgniteUtils

modules/calcite/src/test/java/org/apache/ignite/internal/processors/query/calcite/integration/TableDdlIntegrationTest.java

@@ -24,6 +24,7 @@
 import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 import java.util.function.Predicate;
 import java.util.stream.Collectors;
@@ -49,7 +50,6 @@
 import org.junit.Test;
 
 import static org.apache.ignite.internal.processors.query.calcite.TestUtils.hasSize;
-import static org.apache.ignite.internal.util.IgniteUtils.map;
 import static org.hamcrest.CoreMatchers.equalTo;
 import static org.hamcrest.CoreMatchers.hasItem;
 import static org.hamcrest.CoreMatchers.nullValue;
@@ -83,7 +83,7 @@ public void createTableSimpleCase() {
         assertThat(
             ent.getFields(),
             equalTo(new LinkedHashMap<>(
-                map(
+                Map.of(
                     "ID", Integer.class.getName(),
                     "VAL", String.class.getName()
                 )

modules/clients/src/test/java/org/apache/ignite/internal/processors/rest/JettyRestProcessorAbstractSelfTest.java

@@ -643,7 +643,7 @@ public void testPutComplexObject() throws Exception {
      */
     @Test
     public void testPutJsonArray() throws Exception {
-        Map<String, int[]> map = U.map("1", new int[] {1, 2, 3});
+        Map<String, int[]> map = Map.of("1", new int[] {1, 2, 3});
         putObject(DEFAULT_CACHE_NAME, "1", map, Map.class.getName());
         assertTrue(Map.class.isAssignableFrom(jcache().get(1).getClass()));
 

modules/core/src/main/java/org/apache/ignite/internal/management/cache/QueryEntity.java

@@ -22,6 +22,7 @@
 import java.io.ObjectOutput;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.HashMap;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
@@ -104,7 +105,7 @@ private QueryEntity(org.apache.ignite.cache.QueryEntity q) {
 
         qryFlds = new LinkedHashMap<>(qryFields);
 
-        aliases = U.copyMap(q.getAliases());
+        aliases = new HashMap<>(q.getAliases());
 
         Collection<org.apache.ignite.cache.QueryIndex> qryIdxs = q.getIndexes();
 

modules/core/src/main/java/org/apache/ignite/internal/pagemem/impl/PageMemoryNoStoreImpl.java

@@ -42,7 +42,6 @@
 import org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMetrics;
 import org.apache.ignite.internal.processors.cache.persistence.tree.io.PageIO;
 import org.apache.ignite.internal.util.GridUnsafe;
-import org.apache.ignite.internal.util.IgniteUtils;
 import org.apache.ignite.internal.util.OffheapReadWriteLock;
 import org.apache.ignite.internal.util.offheap.GridOffHeapOutOfMemoryException;
 import org.apache.ignite.internal.util.typedef.internal.U;
@@ -157,7 +156,7 @@ public class PageMemoryNoStoreImpl implements PageMemory {
     /** Concurrency lvl. */
     private final int lockConcLvl = IgniteSystemProperties.getInteger(
         IGNITE_OFFHEAP_LOCK_CONCURRENCY_LEVEL,
-        IgniteUtils.nearestPow2(Runtime.getRuntime().availableProcessors() * 4)
+        U.nearestPow2(Runtime.getRuntime().availableProcessors() * 4, true)
     );
 
     /** */

modules/core/src/main/java/org/apache/ignite/internal/processors/cache/store/GridCacheWriteBehindStore.java

@@ -1536,15 +1536,6 @@ private void setNext(@Nullable Entry<? extends K, ? extends V> val,
             this.nextStoreOperation = storeOperation;
         }
 
-        /**
-         * Awaits a signal on flush condition.
-         *
-         * @throws IgniteInterruptedCheckedException If thread was interrupted.
-         */
-        private void waitForFlush() throws IgniteInterruptedCheckedException {
-            U.await(flushCond);
-        }
-
         /**
          * Signals flush condition.
          */