Make getABI_* calls in wrapper should be static

codegen/src/main/java/org/web3j/codegen/SolidityFunctionWrapper.java

@@ -1506,7 +1506,7 @@ List<MethodSpec> buildFunctions(
         // Create function that returns the ABI encoding of the Solidity function call.
         if (abiFuncs) {
             functionName = "getABI_" + functionName;
-            methodBuilder = MethodSpec.methodBuilder(functionName).addModifiers(Modifier.PUBLIC);
+            methodBuilder = MethodSpec.methodBuilder(functionName).addModifiers(Modifier.PUBLIC).addModifiers(Modifier.STATIC);
             addParameters(methodBuilder, functionDefinition.getInputs());
             buildAbiFunction(functionDefinition, methodBuilder, inputParams, useUpperCase);
             results.add(methodBuilder.build());

codegen/src/test/java/org/web3j/codegen/SolidityFunctionWrapperGeneratorTest.java

@@ -60,6 +60,17 @@ public void testGetFileNoExtension() {
         assertEquals("file", getFileNameNoExtension("file.txt"));
     }
 
+    @Test
+    public void testAbiFuncsGeneration() throws Exception {
+        testCodeGeneration(emptyList(),"abifuncs", "AbiFuncs", JAVA_TYPES_ARG, true, false, true);
+        testCodeGeneration(emptyList(),"abifuncs", "AbiFuncs", SOLIDITY_TYPES_ARG, true, false, true);
+    }
+
+    @Test
+    public void testAbiFuncsCompareJavaFileTest() throws Exception {
+        compareJavaFile("AbiFuncs", false, true);
+    }
+
     @Test
     public void testGreeterGeneration() throws Exception {
         testCodeGenerationJvmTypes("greeter", "Greeter");
@@ -143,12 +154,12 @@ public void testStructOnlyInArray() throws Exception {
 
     @Test
     public void testStructOnlyInArrayCompareJavaFile() throws Exception {
-        compareJavaFile("OnlyInArrayStruct", false);
+        compareJavaFile("OnlyInArrayStruct", false, false);
     }
 
     @Test
     public void testArraysInStructCompareJavaFileTest() throws Exception {
-        compareJavaFile("ArraysInStruct", false);
+        compareJavaFile("ArraysInStruct", false, false);
     }
 
     @Test
@@ -199,12 +210,12 @@ public void testEventParametersNoNamed() throws Exception {
 
     @Test
     public void testEventParametersNoNamedCompareJavaFile() throws Exception {
-        compareJavaFile("EventParameters", false);
+        compareJavaFile("EventParameters", false, false);
     }
 
     @Test
     public void testDeployMethodGenerated() throws Exception {
-        compareJavaFile("MetaCoin", true);
+        compareJavaFile("MetaCoin", true, false);
     }
 
     @Test
@@ -215,7 +226,7 @@ public void testSameInnerStructName() throws Exception {
 
     @Test
     public void testSameInnerStructNameCompareJavaFile() throws Exception {
-        compareJavaFile("SameInnerStructName", true);
+        compareJavaFile("SameInnerStructName", true, false);
     }
 
     @Test
@@ -229,7 +240,7 @@ public void testArrayOfStructClassGeneration() throws Exception {
 
     @Test
     public void testArrayOfStructClassGenerationCompareJavaFile() throws Exception {
-        compareJavaFile("ArrayOfStructClassGeneration", true);
+        compareJavaFile("ArrayOfStructClassGeneration", true, false);
     }
 
     @Test
@@ -240,7 +251,7 @@ public void testArrayOfStructAndStructGeneration() throws Exception {
 
     @Test
     public void testArrayOfStructAndStructCompareJavaFile() throws Exception {
-        compareJavaFile("ArrayOfStructAndStruct", true);
+        compareJavaFile("ArrayOfStructAndStruct", true, false);
     }
 
     @Test
@@ -251,14 +262,14 @@ public void testStaticArrayOfStructsInStructGeneration() throws Exception {
 
     @Test
     public void testStaticArrayOfStructsInStructGenerationCompareJavaFile() throws Exception {
-        compareJavaFile("StaticArrayOfStructsInStruct", true);
+        compareJavaFile("StaticArrayOfStructsInStruct", true, false);
     }
 
-    private void compareJavaFile(String inputFileName, boolean useBin) throws Exception {
+    private void compareJavaFile(String inputFileName, boolean useBin, boolean abiFuncs) throws Exception {
         String contract = inputFileName.toLowerCase();
         String packagePath =
                 generateCode(
-                        emptyList(), contract, inputFileName, JAVA_TYPES_ARG, useBin, false, false);
+                        emptyList(), contract, inputFileName, JAVA_TYPES_ARG, useBin, false, abiFuncs);
         File fileActual = new File(tempDirPath, packagePath + "/" + inputFileName + ".java");
         File fileExpected =
                 new File(

codegen/src/test/resources/solidity/abifuncs/AbiFuncs.sol

@@ -0,0 +1,10 @@
+pragma solidity >= 0.8.7;
+
+contract AbiFuncs {
+
+
+    function hi(uint256 x) public {
+
+    }
+
+}

codegen/src/test/resources/solidity/abifuncs/build/AbiFuncs.abi

@@ -0,0 +1 @@
+[{"inputs":[{"internalType":"uint256","name":"x","type":"uint256"}],"name":"hi","outputs":[],"stateMutability":"nonpayable","type":"function"}]

codegen/src/test/resources/solidity/abifuncs/build/AbiFuncs.bin

@@ -0,0 +1 @@
+608060405234801561000f575f80fd5b5060d38061001c5f395ff3fe6080604052348015600e575f80fd5b50600436106026575f3560e01c80634cf1b41d14602a575b5f80fd5b60406004803603810190603c91906077565b6042565b005b50565b5f80fd5b5f819050919050565b6059816049565b81146062575f80fd5b50565b5f813590506071816052565b92915050565b5f6020828403121560895760886045565b5b5f6094848285016065565b9150509291505056fea2646970667358221220e788c40f4c54add124e8c2662f9bc92e122a1ea722846a0a855e1ffb68cbdac564736f6c63430008140033

codegen/src/test/resources/solidity/abifuncs/build/java/AbiFuncs.java

@@ -0,0 +1,91 @@
+package org.web3j.unittests.java;
+
+import java.math.BigInteger;
+import java.util.Arrays;
+import java.util.Collections;
+import org.web3j.abi.TypeReference;
+import org.web3j.abi.datatypes.Function;
+import org.web3j.abi.datatypes.Type;
+import org.web3j.crypto.Credentials;
+import org.web3j.protocol.Web3j;
+import org.web3j.protocol.core.RemoteFunctionCall;
+import org.web3j.protocol.core.methods.response.TransactionReceipt;
+import org.web3j.tx.Contract;
+import org.web3j.tx.TransactionManager;
+import org.web3j.tx.gas.ContractGasProvider;
+
+/**
+ * <p>Auto generated code.
+ * <p><strong>Do not modify!</strong>
+ * <p>Please use the <a href="https://docs.web3j.io/command_line.html">web3j command line tools</a>,
+ * or the org.web3j.codegen.SolidityFunctionWrapperGenerator in the 
+ * <a href="https://github.com/web3j/web3j/tree/main/codegen">codegen module</a> to update.
+ *
+ * <p>Generated with web3j version none.
+ */
+@SuppressWarnings("rawtypes")
+public class AbiFuncs extends Contract {
+    public static final String BINARY = "Bin file was not provided";
+
+    public static final String FUNC_HI = "hi";
+
+    @Deprecated
+    protected AbiFuncs(String contractAddress, Web3j web3j, Credentials credentials,
+            BigInteger gasPrice, BigInteger gasLimit) {
+        super(BINARY, contractAddress, web3j, credentials, gasPrice, gasLimit);
+    }
+
+    protected AbiFuncs(String contractAddress, Web3j web3j, Credentials credentials,
+            ContractGasProvider contractGasProvider) {
+        super(BINARY, contractAddress, web3j, credentials, contractGasProvider);
+    }
+
+    @Deprecated
+    protected AbiFuncs(String contractAddress, Web3j web3j, TransactionManager transactionManager,
+            BigInteger gasPrice, BigInteger gasLimit) {
+        super(BINARY, contractAddress, web3j, transactionManager, gasPrice, gasLimit);
+    }
+
+    protected AbiFuncs(String contractAddress, Web3j web3j, TransactionManager transactionManager,
+            ContractGasProvider contractGasProvider) {
+        super(BINARY, contractAddress, web3j, transactionManager, contractGasProvider);
+    }
+
+    public RemoteFunctionCall<TransactionReceipt> hi(BigInteger x) {
+        final Function function = new Function(
+                FUNC_HI, 
+                Arrays.<Type>asList(new org.web3j.abi.datatypes.generated.Uint256(x)), 
+                Collections.<TypeReference<?>>emptyList());
+        return executeRemoteCallTransaction(function);
+    }
+
+    public static String getABI_hi(BigInteger x) {
+        final Function function = new Function(
+                FUNC_HI, 
+                Arrays.<Type>asList(new org.web3j.abi.datatypes.generated.Uint256(x)), 
+                Collections.<TypeReference<?>>emptyList());
+        return org.web3j.abi.FunctionEncoder.encode(function);
+    }
+
+    @Deprecated
+    public static AbiFuncs load(String contractAddress, Web3j web3j, Credentials credentials,
+            BigInteger gasPrice, BigInteger gasLimit) {
+        return new AbiFuncs(contractAddress, web3j, credentials, gasPrice, gasLimit);
+    }
+
+    @Deprecated
+    public static AbiFuncs load(String contractAddress, Web3j web3j,
+            TransactionManager transactionManager, BigInteger gasPrice, BigInteger gasLimit) {
+        return new AbiFuncs(contractAddress, web3j, transactionManager, gasPrice, gasLimit);
+    }
+
+    public static AbiFuncs load(String contractAddress, Web3j web3j, Credentials credentials,
+            ContractGasProvider contractGasProvider) {
+        return new AbiFuncs(contractAddress, web3j, credentials, contractGasProvider);
+    }
+
+    public static AbiFuncs load(String contractAddress, Web3j web3j,
+            TransactionManager transactionManager, ContractGasProvider contractGasProvider) {
+        return new AbiFuncs(contractAddress, web3j, transactionManager, contractGasProvider);
+    }
+}