feat(msg): optimize information display

Author: lxcmyf

src/main/java/org/tron/common/utils/HttpUtils.java

@@ -64,6 +64,9 @@ private static String responseBodyToString(Response response) throws IOException
               }
         }).orElse(EMPTY);
       }
+      if (response.code() == 502) {
+        throw new IOException("Unexpected HTTP code " + response.code() + ": Bad Gateway.");
+      }
       throw new IOException(
           "Unexpected HTTP code " + response.code() + ": " + msg + "\nAPI authentication failed, "
               + "please check the " + greenBoldHighlight("apikey") + " and "

src/main/java/org/tron/ledger/listener/LedgerEventListener.java

@@ -20,7 +20,6 @@
 import org.tron.ledger.sdk.LedgerConstant;
 import org.tron.ledger.sdk.LedgerProtocol;
 import org.tron.ledger.wrapper.DebugConfig;
-import org.tron.ledger.wrapper.HidServicesWrapper;
 import org.tron.ledger.wrapper.LedgerSignResult;
 import org.tron.protos.Protocol;
 import org.tron.protos.Protocol.Transaction;

src/main/java/org/tron/walletcli/Client.java

@@ -795,6 +795,11 @@ private void switchNetwork(String[] parameters) throws InterruptedException {
       } else if (parameters.length == 2) {
         fullNode = parameters[0];
         solidityNode = parameters[1];
+        if (EMPTY_STR.equalsIgnoreCase(fullNode) && EMPTY_STR.equalsIgnoreCase(solidityNode)) {
+          System.out.println("Both fullnode and solidity cannot be empty at the same time.");
+          System.out.println("SwitchNetwork " + failedHighlight() + " !!!");
+          return;
+        }
         if (EMPTY_STR.equalsIgnoreCase(fullNode)) {
           fullNode = EMPTY;
         }
@@ -5627,10 +5632,10 @@ private void gasFreeTrace(String[] parameters) throws IOException, NoSuchAlgorit
   private void currentNetwork() {
     NetType currentNet = WalletApi.getCurrentNetwork();
     Pair<String, String> customNodes = WalletApi.getCustomNodes();
-    if (customNodes == null || (org.apache.commons.lang3.StringUtils.isEmpty(customNodes.getLeft())
-        && org.apache.commons.lang3.StringUtils.isEmpty(customNodes.getRight()))) {
-      System.out.println("The configuration of both fullnode and solidity cannot be empty at the same time.");
-      return;
+    if (currentNet == CUSTOM && (customNodes == null || (org.apache.commons.lang3.StringUtils.isEmpty(customNodes.getLeft())
+          && org.apache.commons.lang3.StringUtils.isEmpty(customNodes.getRight())))) {
+        System.out.println("The configuration of both fullnode and solidity cannot be empty at the same time.");
+        return;
     }
     String fullNode = customNodes.getLeft();
     String solidityNode = customNodes.getRight();

src/main/java/org/tron/walletcli/WalletApiWrapper.java

@@ -2724,7 +2724,7 @@ private Pair<GrpcClient, NetType> getGrpcClientAndNetType(String netWorkSymbol,
         }
         if (StringUtils.isEmpty(fullNode) && StringUtils.isEmpty(solidityNode)) {
           throw new IllegalArgumentException("The configuration of fullnode.ip.list or " +
-              "soliditynode.ip.list in config. conf is incorrect.");
+              "soliditynode.ip.list in config.conf is incorrect.");
         }
         if (NILE.getGrpc().getFullNode().equals(fullNode) && NILE.getGrpc().getSolidityNode().equals(solidityNode)){
           currentNet = NILE;
@@ -2876,13 +2876,15 @@ public boolean gasFreeTransfer(String receiver, long value) throws NoSuchAlgorit
       boolean ledgerResult = LedgerSignUtil.requestLedgerSignLogic(transaction, ledgerPath, wf.getAddress(), true);
       if (ledgerResult) {
         signature = TransactionSignManager.getInstance().getGasfreeSignature();
-        if (Objects.isNull(signature)) {
-          System.out.println("Listening ledger did not obtain signature.");
-          return false;
-        }
+      }
+      if (Objects.isNull(signature)) {
+        System.out.println("Listening ledger did not obtain signature.");
         TransactionSignManager.getInstance().setTransaction(null);
         TransactionSignManager.getInstance().setGasfreeSignature(null);
+        return false;
       }
+      TransactionSignManager.getInstance().setTransaction(null);
+      TransactionSignManager.getInstance().setGasfreeSignature(null);
     } else {
       signature = signOffChain(keccak256(concat), privateKey);
     }