fix sonar warnings

Author: tronalex

framework/src/main/java/org/tron/common/logsfilter/capsule/BlockLogTriggerCapsule.java

@@ -10,7 +10,7 @@ public class BlockLogTriggerCapsule extends TriggerCapsule {
 
   @Getter
   @Setter
-  BlockLogTrigger blockLogTrigger;
+  private BlockLogTrigger blockLogTrigger;
 
   public BlockLogTriggerCapsule(BlockCapsule block) {
     blockLogTrigger = new BlockLogTrigger();

framework/src/main/java/org/tron/common/logsfilter/capsule/ContractEventTriggerCapsule.java

@@ -14,7 +14,7 @@ public class ContractEventTriggerCapsule extends TriggerCapsule {
 
   @Getter
   @Setter
-  ContractEventTrigger contractEventTrigger;
+  private ContractEventTrigger contractEventTrigger;
   @Getter
   @Setter
   private List<byte[]> topicList;

framework/src/main/java/org/tron/common/logsfilter/capsule/ContractLogTriggerCapsule.java

@@ -10,7 +10,7 @@ public class ContractLogTriggerCapsule extends TriggerCapsule {
 
   @Getter
   @Setter
-  ContractLogTrigger contractLogTrigger;
+  private ContractLogTrigger contractLogTrigger;
 
   public ContractLogTriggerCapsule(ContractLogTrigger contractLogTrigger) {
     this.contractLogTrigger = contractLogTrigger;

framework/src/main/java/org/tron/common/logsfilter/capsule/TransactionLogTriggerCapsule.java

@@ -30,7 +30,7 @@ public class TransactionLogTriggerCapsule extends TriggerCapsule {
 
   @Getter
   @Setter
-  TransactionLogTrigger transactionLogTrigger;
+  private TransactionLogTrigger transactionLogTrigger;
 
   public TransactionLogTriggerCapsule(TransactionCapsule trxCasule, BlockCapsule blockCapsule) {
     transactionLogTrigger = new TransactionLogTrigger();