Error handling and other small improvements.

Signed-off-by: Nikita Lebedev <[email protected]>

.github/workflows/build.yml

@@ -111,9 +111,9 @@ jobs:
           key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
           restore-keys: |
             ${{ runner.os }}-gradle-
-      - name: Compile SDK
+      - name: Assemble SDK
         run: ./gradlew :sdk:assemble
-      - name: Compile Examples
+      - name: Assemble Examples
         run: ./gradlew :examples:assemble
 
       - name: Start the local node
@@ -128,3 +128,6 @@ jobs:
       - name: Run Examples
         run: |
             ./gradlew :examples:runAllExamples
+
+      - name: Stop the local node
+        run: npx @hashgraph/hedera-local stop

examples/build.gradle

@@ -15,7 +15,7 @@ task runAllExamples {
         .filter { it.name.endsWith('Example.java') }
         .map { it.name.replaceAll('\\.java$', '') }
         .filter { !it.equals('ValidateChecksumExample') } // disabled this example, because it needs user input (but it WORKS)
-        .filter { !it.equals('ZeroTokenOperationsExample') } // doesn't work with hedera-local-node
+        .filter { !it.equals('ZeroTokenOperationsExample') } // doesn't work
         .filter { !it.equals('SolidityPrecompileExample') } // doesn't work with hedera-local-node
         .filter { !it.equals('ConsensusPubSubChunkedExample') } // doesn't work on CI
         .toList()

examples/src/main/java/AccountCreateWithHtsExample.java

@@ -35,7 +35,7 @@ public final class AccountCreateWithHtsExample {
     private AccountCreateWithHtsExample() {
     }
 
-    public static void main(String[] args) throws NullPointerException, PrecheckStatusException, ReceiptStatusException, InterruptedException, TimeoutException {
+    public static void main(String[] args) throws Exception {
         Client client = ClientHelper.forName(HEDERA_NETWORK);
 
         // Defaults the operator account ID and key such that all generated transactions will be paid for
@@ -149,11 +149,11 @@ public static void main(String[] args) throws NullPointerException, PrecheckStat
 
         System.out.println("The normal account ID of the given alias: " + accountId);
 
-        if (nftOwnerAccountId.equals(accountId))
+        if (nftOwnerAccountId.equals(accountId)) {
             System.out.println("The NFT owner accountId matches the accountId created with the HTS");
-        else
-            System.out.println("The two account IDs does not match");
-
+        } else {
+            throw new Exception("The two account IDs does not match");
+        }
 
         System.out.println("Example 2");
 
@@ -224,7 +224,7 @@ public static void main(String[] args) throws NullPointerException, PrecheckStat
         if (tokenBalanceAccountId2 == 10)
             System.out.println("Account is created successfully using HTS 'TransferTransaction'");
         else
-            System.out.println("Creating account with HTS using public key alias failed");
+            throw new Exception("Creating account with HTS using public key alias failed");
 
         client.close();
     }

examples/src/main/java/AutoCreateAccountTransferTransactionExample.java

@@ -41,7 +41,7 @@ private AutoCreateAccountTransferTransactionExample() {
     - Sign with the private key that corresponds to the public key on the hollow account
     - Get the `AccountInfo` for the account and return the public key on the account to show it is a complete account
     */
-    public static void main(String[] args) throws PrecheckStatusException, TimeoutException, ReceiptStatusException, InterruptedException, IOException {
+    public static void main(String[] args) throws Exception {
         Client client = ClientHelper.forName(HEDERA_NETWORK);
 
         // Defaults the operator account ID and key such that all generated transactions will be paid for
@@ -111,7 +111,7 @@ public static void main(String[] args) throws PrecheckStatusException, TimeoutEx
         if (((KeyList) accountInfo.key).isEmpty()) {
             System.out.println("The newly created account is a hollow account");
         } else {
-            System.out.println("Not a hollow account");
+            throw new Exception("Not a hollow account");
         }
 
         /*

examples/src/main/java/CreateAccountWithAliasAndReceiverSignatureRequiredExample.java

@@ -25,7 +25,7 @@ private CreateAccountWithAliasAndReceiverSignatureRequiredExample() {
     - Get the `AccountInfo` and show that the account has contractAccountId
     */
     public static void main(String[] args)
-        throws PrecheckStatusException, TimeoutException, ReceiptStatusException, InterruptedException {
+        throws Exception {
         Client client = ClientHelper.forName(HEDERA_NETWORK);
 
         // Defaults the operator account ID and key such that all generated transactions will be paid for
@@ -84,7 +84,7 @@ public static void main(String[] args)
         if (accountInfo.contractAccountId != null) {
             System.out.println("The new account has alias " + accountInfo.contractAccountId);
         } else {
-            System.out.println("The new account doesn't have alias");
+            throw new Exception("The new account doesn't have alias");
         }
     }
 }

examples/src/main/java/CreateSimpleContractExample.java

@@ -106,8 +106,7 @@ public static void main(String[] args)
             .execute(client);
 
         if (contractCallResult.errorMessage != null) {
-            System.out.println("error calling contract: " + contractCallResult.errorMessage);
-            return;
+            throw new Exception("error calling contract: " + contractCallResult.errorMessage);
         }
 
         String message = contractCallResult.getString(0);