JBytes.len

Author: magicprinc

src/main/java/com/trivago/fastutilconcurrentwrapper/util/JBytes.java

@@ -41,6 +41,10 @@ public static boolean nonEmpty (byte @Nullable [] b) {
 		return b != null && b.length > 0;
 	}
 
+	public static int len (byte @Nullable [] b){
+		return b != null ? b.length : 0;
+	}
+
 	/**
 	 A common case of copying arrays from start to [start .. min(len1,len2))
 	 Used when increasing or decreasing the array length.

src/test/java/com/trivago/fastutilconcurrentwrapper/util/JBytesTest.java

@@ -32,6 +32,10 @@ void testIsEmptyAndNonEmpty() {
 		assertFalse(JBytes.nonEmpty(null));
 		assertFalse(JBytes.nonEmpty(new byte[0]));
 		assertTrue(JBytes.nonEmpty(new byte[]{1}));
+
+		assertEquals(0, JBytes.len(null));
+		assertEquals(0, JBytes.len(new byte[0]));
+		assertEquals(1, JBytes.len(new byte[]{0}));
 	}
 
 	@Test