Improvement of c-strings

Author: marat-gainullin

build.gradle.kts

@@ -10,8 +10,8 @@ plugins {
 dependencies {
     implementation("javax.xml.bind:jaxb-api:2.3.1")
     compileOnly("com.google.code.findbugs:annotations:3.0.1u2")
-    testImplementation("io.netty:netty-handler:4.1.33.Final")
-    testImplementation("junit:junit:4.12")
+    testImplementation("io.netty:netty-handler:4.1.90.Final")
+    testImplementation("junit:junit:4.13.2")
     testImplementation("ru.yandex.qatools.embed:postgresql-embedded:2.10")
 }
 
@@ -20,4 +20,4 @@ tasks.withType<JavaCompile> {
 }
 
 group = "com.github.pgasync"
-version = "1.0.3"
+version = "1.0.4"

pom.xml

@@ -25,7 +25,7 @@
  */
 public class IO {
 
-    private static final String NULL = new String(new byte[]{0});
+    private static final String NULL = String.valueOf('\u0000');
 
     public static String getCString(ByteBuffer buffer, Charset charset) {
         ByteArrayOutputStream readBuffer = new ByteArrayOutputStream(255);

src/main/java/com/github/pgasync/io/IO.java

@@ -12,7 +12,7 @@ public class IOTest {
 
     @Test
     public void nullCharacters() {
-        var stringWithNulls = new String(new char[]{'t', 'h', (char) 0x00, 'i', 's', ' ', (char) 0x00, 'n'});
+        var stringWithNulls = new String(new char[]{'t', 'h', '\u0000', 'i', 's', ' ', '\u0000', 'n'});
         var utf8Bytes = stringWithNulls.getBytes(StandardCharsets.UTF_8);
         assertEquals(utf8Bytes.length, stringWithNulls.length());
         var bb = ByteBuffer.allocate(16);