Remove unused code.

h2/src/main/org/h2/command/dml/ScriptBase.java

@@ -21,7 +21,6 @@ import org.h2.engine.Database;
 import org.h2.engine.Session;
 import org.h2.expression.Expression;
 import org.h2.message.Message;
-import org.h2.message.Trace;
 import org.h2.security.SHA256;
 import org.h2.store.DataHandler;
 import org.h2.store.FileStore;

h2/src/main/org/h2/command/dml/TransactionCommand.java

@@ -10,7 +10,6 @@ import java.sql.SQLException;
 import org.h2.command.Prepared;
 import org.h2.engine.Database;
 import org.h2.engine.Session;
-import org.h2.log.LogSystem;
 import org.h2.message.Message;
 import org.h2.result.ResultInterface;
 

h2/src/main/org/h2/engine/Database.java

@@ -141,7 +141,6 @@ public class Database implements DataHandler {
     private String lobCompressionAlgorithm;
     private boolean optimizeReuseResults = true;
     private String cacheType;
-    private boolean indexSummaryValid = true;
     private String accessModeLog, accessModeData;
     private boolean referentialIntegrity = true;
     private boolean multiVersion;
@@ -1068,7 +1067,6 @@ public class Database implements DataHandler {
                     meta.close(systemSession);
                     systemSession.commit(true);
                 }
-                indexSummaryValid = true;
             }
         } catch (SQLException e) {
             traceSystem.getTrace(Trace.DATABASE).error("close", e);

h2/src/main/org/h2/store/DataHandler.java

@@ -8,7 +8,6 @@ package org.h2.store;
 
 import java.sql.SQLException;
 
-import org.h2.message.Trace;
 import org.h2.util.SmallLRUCache;
 import org.h2.util.TempFileDeleter;
 import org.h2.value.Value;

h2/src/main/org/h2/store/FileStore.java

@@ -14,7 +14,6 @@ import org.h2.constant.ErrorCode;
 import org.h2.constant.SysProperties;
 import org.h2.engine.Constants;
 import org.h2.message.Message;
-import org.h2.message.Trace;
 import org.h2.security.SecureFileStore;
 import org.h2.store.fs.FileObject;
 import org.h2.store.fs.FileSystem;

h2/src/main/org/h2/tools/Recover.java

@@ -35,7 +35,6 @@ import org.h2.engine.Constants;
 import org.h2.engine.DbObject;
 import org.h2.engine.MetaRecord;
 import org.h2.message.Message;
-import org.h2.message.Trace;
 import org.h2.result.Row;
 import org.h2.result.SimpleRow;
 import org.h2.security.SHA256;

h2/src/main/org/h2/util/CacheLRU.java

@@ -49,15 +49,12 @@ public class CacheLRU implements Cache {
      */
     public static Cache getCache(CacheWriter writer, String cacheType, int cacheSize) throws SQLException {
         Map<Integer, CacheObject> secondLevel = null;
-        String prefix = null;
         if (cacheType.startsWith("SOFT_")) {
             secondLevel = new SoftHashMap<Integer, CacheObject>();
             cacheType = cacheType.substring("SOFT_".length());
-            prefix = "SOFT_";
         } else if (cacheType.startsWith("WEAK_")) {
             secondLevel = new WeakHashMap<Integer, CacheObject>();
             cacheType = cacheType.substring("WEAK_".length());
-            prefix = "WEAK_";
         }
         Cache cache;
         if ("TQ".equals(cacheType)) {
@@ -69,7 +66,7 @@ public class CacheLRU implements Cache {
             throw Message.getInvalidValueException(cacheType, "CACHE_TYPE");
         }
         if (secondLevel != null) {
-            cache = new CacheSecondLevel(cache, prefix, secondLevel);
+            cache = new CacheSecondLevel(cache, secondLevel);
         }
         return cache;
     }

h2/src/main/org/h2/util/CacheSecondLevel.java

@@ -16,12 +16,10 @@ import java.util.Map;
 class CacheSecondLevel implements Cache {
 
     private final Cache baseCache;
-    private final String prefix;
     private final Map<Integer, CacheObject> map;
 
-    CacheSecondLevel(Cache cache, String prefix, Map<Integer, CacheObject> map) {
+    CacheSecondLevel(Cache cache, Map<Integer, CacheObject> map) {
         this.baseCache = cache;
-        this.prefix = prefix;
         this.map = map;
     }
 

h2/src/main/org/h2/util/FileUtils.java

@@ -14,8 +14,6 @@ import java.io.RandomAccessFile;
 import java.sql.SQLException;
 
 import org.h2.constant.SysProperties;
-import org.h2.message.Message;
-import org.h2.store.fs.FileObject;
 import org.h2.store.fs.FileSystem;
 
 /**

h2/src/test/org/h2/test/db/TestTriggersConstraints.java

@@ -16,7 +16,6 @@ import java.util.HashSet;
 
 import org.h2.api.Trigger;
 import org.h2.test.TestBase;
-import org.h2.util.New;
 
 /**
  * Tests for trigger and constraints.

h2/src/test/org/h2/test/unit/TestDataPage.java

@@ -12,7 +12,6 @@ import java.sql.SQLException;
 import java.sql.Time;
 import java.sql.Timestamp;
 import org.h2.constant.SysProperties;
-import org.h2.message.Trace;
 import org.h2.store.Data;
 import org.h2.store.DataHandler;
 import org.h2.store.DataPage;

h2/src/test/org/h2/test/unit/TestFile.java

@@ -7,9 +7,7 @@
 package org.h2.test.unit;
 
 import java.util.Random;
-
 import org.h2.constant.SysProperties;
-import org.h2.message.Trace;
 import org.h2.store.DataHandler;
 import org.h2.store.FileStore;
 import org.h2.test.TestBase;

h2/src/test/org/h2/test/unit/TestValueHashMap.java

@@ -10,9 +10,7 @@ import java.sql.SQLException;
 import java.util.Comparator;
 import java.util.HashMap;
 import java.util.Random;
-
 import org.h2.constant.SysProperties;
-import org.h2.message.Trace;
 import org.h2.store.DataHandler;
 import org.h2.store.FileStore;
 import org.h2.test.TestBase;

h2/src/test/org/h2/test/unit/TestValueMemory.java

@@ -14,11 +14,9 @@ import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.IdentityHashMap;
 import java.util.Random;
-
 import org.h2.constant.SysProperties;
 import org.h2.engine.Constants;
 import org.h2.message.Message;
-import org.h2.message.Trace;
 import org.h2.store.DataHandler;
 import org.h2.store.FileStore;
 import org.h2.test.TestBase;