fix checkStyle

Author: geb789

chainbase/src/main/java/org/tron/common/utils/StorageUtils.java

@@ -59,7 +59,7 @@ public static Options getOptionsByDbName(String dbName) {
     return createDefaultDbOptions();
   }
 
-  protected static Options createDefaultDbOptions() {
+  public static Options createDefaultDbOptions() {
     Options dbOptions = new Options();
 
     dbOptions.createIfMissing(true);

framework/src/main/java/org/tron/core/config/args/Args.java

@@ -1051,7 +1051,6 @@ public static void initDBConfig(Args cfgArgs) {
       DBConfig.setPropertyMap(cfgArgs.getStorage().getPropertyMap());
       DBConfig.setDbSync(cfgArgs.getStorage().isDbSync());
       DBConfig.setDbDirectory(cfgArgs.getStorage().getDbDirectory());
-
     }
 
     if (Objects.nonNull(cfgArgs.getGenesisBlock())) {

framework/src/main/java/org/tron/core/config/args/Storage.java

@@ -37,7 +37,7 @@
  * @since 2018/5/25
  */
 
-public class Storage extends StorageUtils {
+public class Storage {
 
   /**
    * Keys (names) of database config
@@ -190,7 +190,7 @@ private static Property createProperty(final ConfigObject conf) {
     }
 
     // Check, get and set fields of Options
-    Options dbOptions = createDefaultDbOptions();
+    Options dbOptions = StorageUtils.createDefaultDbOptions();
 
     if (conf.containsKey(CREATE_IF_MISSING_CONFIG_KEY)) {
       dbOptions.createIfMissing(
@@ -313,16 +313,4 @@ public void deleteAllStoragePaths() {
       }
     }
   }
-
-  private boolean hasProperty(String dbName) {
-    if (propertyMap != null) {
-      return propertyMap.containsKey(dbName);
-    }
-    return false;
-  }
-
-  private Property getProperty(String dbName) {
-    return propertyMap.get(dbName);
-  }
-
 }

framework/src/test/java/org/tron/common/runtime/vm/InterpreterTest.java

@@ -28,7 +28,6 @@
 import org.tron.core.config.args.Args;
 import org.tron.core.exception.ContractValidateException;
 import org.tron.core.vm.VM;
-import org.tron.core.vm.config.VMConfig;
 import org.tron.core.vm.program.Program;
 import org.tron.core.vm.program.invoke.ProgramInvokeMockImpl;
 import org.tron.protos.Protocol.Transaction;