#2677 - Fix for trim failing on mutation of lastAccessTime

Currently, lastAccessTime can mutate during cache trim processing. This fixes this issue by taking a copy of the lastAccessTime storing as lastAccessSort and using that for sorting for cache trim.

ebean-core/src/test/java/io/ebeaninternal/server/cache/DefaultServerCache_RunEvictionTest.java

@@ -10,13 +10,11 @@ import org.junit.jupiter.api.Test;
 import java.util.Random;
 
 
-public class DefaultServerCache_RunEvictionTest {
-
+class DefaultServerCache_RunEvictionTest {
 
   private DefaultServerCache createCache() {
-
     ServerCacheOptions cacheOptions = new ServerCacheOptions();
-    cacheOptions.setMaxSize(10000);
+    cacheOptions.setMaxSize(300);
     cacheOptions.setMaxIdleSecs(1);
     cacheOptions.setMaxSecsToLive(2);
     cacheOptions.setTrimFrequency(1);
@@ -35,8 +33,7 @@ public class DefaultServerCache_RunEvictionTest {
 
   @Disabled("test takes long time")
   @Test
-  public void runEvict() throws InterruptedException {
-
+  void runEvict() throws InterruptedException {
     for (int i = 0; i < 15; i++) {
       doStuff();
       cache.runEviction();
@@ -47,10 +44,8 @@ public class DefaultServerCache_RunEvictionTest {
   }
 
   private void doStuff() {
-
     for (int i = 0; i < 500; i++) {
       String key = "" + random.nextInt(20000);
-
       int mode = random.nextInt(10);
       if (mode < 8) {
         cache.get(key);