accounts/abi, mobile: support jave binding

accounts/abi/bind/template.go

@@ -659,6 +659,24 @@ import java.util.*;
 		return this.Contract.transact(opts, "{{.Original.Name}}"	, args);
 	}
 	{{end}}
+
+    {{if .Fallback}}
+	// Fallback is a paid mutator transaction binding the contract fallback function.
+	//
+	// Solidity: {{formatmethod .Fallback.Original $structs}}
+	public Transaction Fallback(TransactOpts opts, byte[] calldata) throws Exception { 
+		return this.Contract.rawTransact(opts, calldata);
+	}
+    {{end}}
+
+    {{if .Receive}}
+	// Receive is a paid mutator transaction binding the contract receive function.
+	//
+	// Solidity: {{formatmethod .Receive.Original $structs}}
+	public Transaction Receive(TransactOpts opts) throws Exception { 
+		return this.Contract.rawTransact(opts, null);
+	}
+    {{end}}
 }
 {{end}}
 `

mobile/bind.go

@@ -197,6 +197,15 @@ func (c *BoundContract) Transact(opts *TransactOpts, method string, args *Interf
 	return &Transaction{rawTx}, nil
 }
 
+// RawTransact invokes the (paid) contract method with raw calldata as input values.
+func (c *BoundContract) RawTransact(opts *TransactOpts, calldata []byte) (tx *Transaction, _ error) {
+	rawTx, err := c.contract.RawTransact(&opts.opts, calldata)
+	if err != nil {
+		return nil, err
+	}
+	return &Transaction{rawTx}, nil
+}
+
 // Transfer initiates a plain transaction to move funds to the contract, calling
 // its default method if one is available.
 func (c *BoundContract) Transfer(opts *TransactOpts) (tx *Transaction, _ error) {