add support for Soroban Preview 11.

Makefile

@@ -12,7 +12,7 @@ xdr/Stellar-internal.x \
 xdr/Stellar-contract-config-setting.x
 
 XDRGEN_COMMIT=f0c41458ca0b66b4649b18deddc9f7a11199f1f9
-XDRNEXT_COMMIT=e372df9f677961aac04c5a4cc80a3667f310b29f
+XDRNEXT_COMMIT=9ac02641139e6717924fdad716f6e958d0168491
 
 .PHONY: xdr xdr-clean xdr-update
 

src/main/java/org/stellar/sdk/InvokeHostFunctionOperation.java

@@ -19,12 +19,11 @@
 import org.stellar.sdk.xdr.Hash;
 import org.stellar.sdk.xdr.HostFunction;
 import org.stellar.sdk.xdr.HostFunctionType;
+import org.stellar.sdk.xdr.InvokeContractArgs;
 import org.stellar.sdk.xdr.InvokeHostFunctionOp;
 import org.stellar.sdk.xdr.OperationType;
 import org.stellar.sdk.xdr.SCSymbol;
 import org.stellar.sdk.xdr.SCVal;
-import org.stellar.sdk.xdr.SCValType;
-import org.stellar.sdk.xdr.SCVec;
 import org.stellar.sdk.xdr.SorobanAuthorizationEntry;
 import org.stellar.sdk.xdr.Uint256;
 import org.stellar.sdk.xdr.XdrString;
@@ -226,32 +225,25 @@ public static InvokeHostFunctionOperation fromXdr(InvokeHostFunctionOp op) {
    * parameter preset, so that you can conveniently build an {@link InvokeHostFunctionOperation} to
    * invoke a contract function.
    *
-   * @see org.stellar.sdk.scval.Scv
-   * @see <a
-   *     href="https://soroban.stellar.org/docs/fundamentals-and-concepts/interacting-with-contracts"
-   *     target="_blank">Interacting with Contracts</a>
    * @param contractId The ID of the contract to invoke.
    * @param functionName The name of the function to invoke.
    * @param parameters The parameters to pass to the method.
    * @return {@link InvokeHostFunctionOperationBuilder}
+   * @see org.stellar.sdk.scval.Scv
+   * @see <a
+   *     href="https://soroban.stellar.org/docs/fundamentals-and-concepts/interacting-with-contracts"
+   *     target="_blank">Interacting with Contracts</a>
    */
   public static InvokeHostFunctionOperationBuilder<?, ?> invokeContractFunctionOperationBuilder(
       String contractId, String functionName, @Nullable Collection<SCVal> parameters) {
     Address address = new Address(contractId);
     if (address.getAddressType() != Address.AddressType.CONTRACT) {
       throw new IllegalArgumentException("\"contractId\" must be a contract address");
     }
-    SCVal contractIdScVal = address.toSCVal();
-    SCVal functionNameScVal =
-        new SCVal.Builder()
-            .discriminant(SCValType.SCV_SYMBOL)
-            .sym(new SCSymbol(new XdrString(functionName)))
-            .build();
-
+    SCSymbol functionNameSCSymbol = new SCSymbol(new XdrString(functionName));
     List<SCVal> invokeContractParams =
-        new ArrayList<>(2 + (parameters != null ? parameters.size() : 0));
-    invokeContractParams.add(contractIdScVal);
-    invokeContractParams.add(functionNameScVal);
+        new ArrayList<>((parameters != null ? parameters.size() : 0));
+
     if (parameters != null) {
       for (SCVal parameter : parameters) {
         if (parameter == null) {
@@ -261,10 +253,17 @@ public static InvokeHostFunctionOperation fromXdr(InvokeHostFunctionOp op) {
       }
     }
 
+    InvokeContractArgs invokeContractArgs =
+        new InvokeContractArgs.Builder()
+            .contractAddress(address.toSCAddress())
+            .functionName(functionNameSCSymbol)
+            .args(invokeContractParams.toArray(new SCVal[0]))
+            .build();
+
     HostFunction hostFunction =
         new HostFunction.Builder()
             .discriminant(HostFunctionType.HOST_FUNCTION_TYPE_INVOKE_CONTRACT)
-            .invokeContract(new SCVec(invokeContractParams.toArray(new SCVal[0])))
+            .invokeContract(invokeContractArgs)
             .build();
     return builder().hostFunction(hostFunction);
   }

src/main/java/org/stellar/sdk/SorobanDataBuilder.java

@@ -40,7 +40,6 @@ public SorobanDataBuilder() {
                     .instructions(new Uint32(new XdrUnsignedInteger(0)))
                     .readBytes(new Uint32(new XdrUnsignedInteger(0)))
                     .writeBytes(new Uint32(new XdrUnsignedInteger(0)))
-                    .extendedMetaDataSizeBytes(new Uint32(new XdrUnsignedInteger(0)))
                     .build())
             .refundableFee(new Int64(0L))
             .ext(new ExtensionPoint.Builder().discriminant(0).build())
@@ -99,9 +98,6 @@ public SorobanDataBuilder setResources(Resources resources) {
     data.getResources().setReadBytes(new Uint32(new XdrUnsignedInteger(resources.getReadBytes())));
     data.getResources()
         .setWriteBytes(new Uint32(new XdrUnsignedInteger(resources.getWriteBytes())));
-    data.getResources()
-        .setExtendedMetaDataSizeBytes(
-            new Uint32(new XdrUnsignedInteger(resources.getMetadataBytes())));
     return this;
   }
 
@@ -160,7 +156,5 @@ public static class Resources {
     @NonNull Long readBytes;
     // number of bytes being written (uint32)
     @NonNull Long writeBytes;
-    // number of extended metadata bytes (uint32)
-    @NonNull Long metadataBytes;
   }
 }

src/main/java/org/stellar/sdk/SorobanServer.java

@@ -37,7 +37,6 @@
 import org.stellar.sdk.responses.sorobanrpc.SimulateTransactionResponse;
 import org.stellar.sdk.responses.sorobanrpc.SorobanRpcResponse;
 import org.stellar.sdk.xdr.ContractDataDurability;
-import org.stellar.sdk.xdr.ContractEntryBodyType;
 import org.stellar.sdk.xdr.LedgerEntry;
 import org.stellar.sdk.xdr.LedgerEntryType;
 import org.stellar.sdk.xdr.LedgerKey;
@@ -179,7 +178,6 @@ public Optional<GetLedgerEntriesResponse.LedgerEntryResult> getContractData(
             .contract(address.toSCAddress())
             .key(key)
             .durability(contractDataDurability)
-            .bodyType(ContractEntryBodyType.DATA_ENTRY)
             .build();
     LedgerKey ledgerKey =
         new LedgerKey.Builder()
@@ -376,12 +374,6 @@ public Transaction prepareTransaction(Transaction transaction)
           "simulation transaction failed, the response contains error information.",
           simulateTransactionResponse);
     }
-    if (simulateTransactionResponse.getResults() == null
-        || simulateTransactionResponse.getResults().size() != 1) {
-      throw new PrepareTransactionException(
-          "simulation transaction failed, the \"results\" field contains multiple records, but it should only contain one.",
-          simulateTransactionResponse);
-    }
     return assembleTransaction(transaction, simulateTransactionResponse);
   }
 
@@ -416,9 +408,6 @@ private Transaction assembleTransaction(
           "unsupported transaction: must contain exactly one InvokeHostFunctionOperation, BumpSequenceOperation, or RestoreFootprintOperation");
     }
 
-    SimulateTransactionResponse.SimulateHostFunctionResult simulateHostFunctionResult =
-        simulateTransactionResponse.getResults().get(0);
-
     long classicFeeNum = transaction.getFee();
     long minResourceFeeNum =
         Optional.ofNullable(simulateTransactionResponse.getMinResourceFee()).orElse(0L);
@@ -428,6 +417,15 @@ private Transaction assembleTransaction(
     if (operation instanceof InvokeHostFunctionOperation) {
       // If the operation is an InvokeHostFunctionOperation, we need to update the auth entries if
       // existing entries are empty and the simulation result contains auth entries.
+      if (simulateTransactionResponse.getResults() == null
+          || simulateTransactionResponse.getResults().size() != 1) {
+        throw new IllegalArgumentException(
+            "invalid simulateTransactionResponse: results must contain exactly one element if the operation is an InvokeHostFunctionOperation");
+      }
+
+      SimulateTransactionResponse.SimulateHostFunctionResult simulateHostFunctionResult =
+          simulateTransactionResponse.getResults().get(0);
+
       Collection<SorobanAuthorizationEntry> existingEntries =
           ((InvokeHostFunctionOperation) operation).getAuth();
       if (existingEntries.isEmpty()

src/main/java/org/stellar/sdk/responses/sorobanrpc/SimulateTransactionResponse.java

@@ -9,8 +9,15 @@
 /**
  * Response for JSON-RPC method simulateTransaction.
  *
- * @see <a href="https://soroban.stellar.org/api/methods/simulateTransaction#returns"
- *     target="_blank">simulateTransaction documentation</a>
+ * <p>Note - The simulation response will have different model representations with different
+ * members present or absent depending on type of response that it is conveying. For example, the
+ * simulation response for invoke host function, could be one of three types: error, success, or
+ * restore operation needed.
+ *
+ * <p>Please refer to the latest <a
+ * href="https://soroban.stellar.org/api/methods/simulateTransaction#returns"
+ * target="_blank">Soroban simulateTransaction documentation</a> for details on which members of the
+ * simulation response model are keyed to each type of response.
  */
 @AllArgsConstructor
 @Value
@@ -23,10 +30,16 @@ public class SimulateTransactionResponse {
 
   Long minResourceFee;
 
+  // An array of the individual host function call results.
+  // This will only contain a single element if present, because only a single
+  // invokeHostFunctionOperation
+  // is supported per transaction.
   ImmutableList<SimulateHostFunctionResult> results;
 
   SimulateTransactionCost cost;
 
+  RestorePreamble restorePreamble;
+
   Long latestLedger;
 
   @AllArgsConstructor
@@ -46,4 +59,12 @@ public static class SimulateTransactionCost {
     @SerializedName("memBytes")
     BigInteger memoryBytes;
   }
+
+  @AllArgsConstructor
+  @Value
+  public static class RestorePreamble {
+    String transactionData;
+
+    Long minResourceFee;
+  }
 }

src/main/java/org/stellar/sdk/scval/ScvError.java

@@ -9,10 +9,7 @@ class ScvError {
   private static final SCValType TYPE = SCValType.SCV_ERROR;
 
   static SCVal toSCVal(SCError value) {
-    return new SCVal.Builder()
-        .discriminant(TYPE)
-        .error(new SCError.Builder().code(value.getCode()).type(value.getType()).build())
-        .build();
+    return new SCVal.Builder().discriminant(TYPE).error(value).build();
   }
 
   static SCError fromSCVal(SCVal scVal) {

src/main/java/org/stellar/sdk/xdr/BumpFootprintExpirationResult.java

@@ -19,6 +19,7 @@
 //      void;
 //  case BUMP_FOOTPRINT_EXPIRATION_MALFORMED:
 //  case BUMP_FOOTPRINT_EXPIRATION_RESOURCE_LIMIT_EXCEEDED:
+//  case BUMP_FOOTPRINT_EXPIRATION_INSUFFICIENT_REFUNDABLE_FEE:
 //      void;
 //  };
 
@@ -63,6 +64,7 @@ public static void encode(
         break;
       case BUMP_FOOTPRINT_EXPIRATION_MALFORMED:
       case BUMP_FOOTPRINT_EXPIRATION_RESOURCE_LIMIT_EXCEEDED:
+      case BUMP_FOOTPRINT_EXPIRATION_INSUFFICIENT_REFUNDABLE_FEE:
         break;
     }
   }
@@ -82,6 +84,7 @@ public static BumpFootprintExpirationResult decode(XdrDataInputStream stream) th
         break;
       case BUMP_FOOTPRINT_EXPIRATION_MALFORMED:
       case BUMP_FOOTPRINT_EXPIRATION_RESOURCE_LIMIT_EXCEEDED:
+      case BUMP_FOOTPRINT_EXPIRATION_INSUFFICIENT_REFUNDABLE_FEE:
         break;
     }
     return decodedBumpFootprintExpirationResult;

src/main/java/org/stellar/sdk/xdr/BumpFootprintExpirationResultCode.java

@@ -19,14 +19,16 @@
 //
 //      // codes considered as "failure" for the operation
 //      BUMP_FOOTPRINT_EXPIRATION_MALFORMED = -1,
-//      BUMP_FOOTPRINT_EXPIRATION_RESOURCE_LIMIT_EXCEEDED = -2
+//      BUMP_FOOTPRINT_EXPIRATION_RESOURCE_LIMIT_EXCEEDED = -2,
+//      BUMP_FOOTPRINT_EXPIRATION_INSUFFICIENT_REFUNDABLE_FEE = -3
 //  };
 
 //  ===========================================================================
 public enum BumpFootprintExpirationResultCode implements XdrElement {
   BUMP_FOOTPRINT_EXPIRATION_SUCCESS(0),
   BUMP_FOOTPRINT_EXPIRATION_MALFORMED(-1),
   BUMP_FOOTPRINT_EXPIRATION_RESOURCE_LIMIT_EXCEEDED(-2),
+  BUMP_FOOTPRINT_EXPIRATION_INSUFFICIENT_REFUNDABLE_FEE(-3),
   ;
   private int mValue;
 
@@ -48,6 +50,8 @@ public static BumpFootprintExpirationResultCode decode(XdrDataInputStream stream
         return BUMP_FOOTPRINT_EXPIRATION_MALFORMED;
       case -2:
         return BUMP_FOOTPRINT_EXPIRATION_RESOURCE_LIMIT_EXCEEDED;
+      case -3:
+        return BUMP_FOOTPRINT_EXPIRATION_INSUFFICIENT_REFUNDABLE_FEE;
       default:
         throw new RuntimeException("Unknown enum value: " + value);
     }