Update CSVEncoder and TemplateEncoder.

Author: gk-brown

kilo-client/src/main/java/org/httprpc/kilo/io/CSVEncoder.java

@@ -62,7 +62,11 @@ public void write(Iterable<?> row, Writer writer) throws IOException {
             throw new IllegalArgumentException();
         }
 
-        encode(row, writer);
+        try {
+            encode(row, writer);
+        } finally {
+            writer.flush();
+        }
     }
 
     /**

kilo-client/src/main/java/org/httprpc/kilo/io/TemplateEncoder.java

@@ -365,21 +365,19 @@ public void bind(String name, Modifier modifier) {
 
     @Override
     public void write(Object value, Writer writer) throws IOException {
-        if (writer == null) {
+        if (value == null || writer == null) {
             throw new IllegalArgumentException();
         }
 
-        if (value != null) {
-            try (var inputStream = type.getResourceAsStream(name)) {
-                Reader reader = new PagedReader(new InputStreamReader(inputStream, getCharset()));
+        try (var inputStream = type.getResourceAsStream(name)) {
+            Reader reader = new PagedReader(new InputStreamReader(inputStream, getCharset()));
 
-                var bufferedWriter = new BufferedWriter(writer);
+            var bufferedWriter = new BufferedWriter(writer);
 
-                try {
-                    encode(BeanAdapter.adapt(value), bufferedWriter, reader);
-                } finally {
-                    bufferedWriter.flush();
-                }
+            try {
+                encode(BeanAdapter.adapt(value), bufferedWriter, reader);
+            } finally {
+                bufferedWriter.flush();
             }
         }
     }

kilo-client/src/test/java/org/httprpc/kilo/io/TemplateEncoderTest.java

@@ -37,17 +37,6 @@
 import static org.junit.jupiter.api.Assertions.*;
 
 public class TemplateEncoderTest {
-    @Test
-    public void testNull() throws IOException {
-        var templateEncoder = new TemplateEncoder(getClass(), "dictionary.txt");
-
-        var writer = new StringWriter();
-
-        templateEncoder.write(null, writer);
-
-        assertEquals("", writer.toString());
-    }
-
     @Test
     public void testMap() throws IOException {
         var templateEncoder = new TemplateEncoder(getClass(), "dictionary.txt");