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Merge "Make dumpHexString() tolerate null arrays." am: a917c1db32

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am: 7bb253d078

Change-Id: Id58b8039510baa518d8d10b03237681a7b842d0f
This commit is contained in:
Bernie Innocenti
2018-06-14 22:02:58 -07:00
committed by android-build-merger
parent cb74f9c13d 7bb253d078
commit 3e0f3ef8ad
2 changed files with 9 additions and 3 deletions
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9
core/java/com/android/internal/util/HexDump.java
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@@ -16,18 +16,21 @@
package com.android.internal.util;
import android.annotation.Nullable;
public class HexDump
{
private final static char[] HEX_DIGITS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
private final static char[] HEX_LOWER_CASE_DIGITS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
public static String dumpHexString(byte[] array)
{
public static String dumpHexString(@Nullable byte[] array) {
if (array == null) return "(null)";
return dumpHexString(array, 0, array.length);
}
public static String dumpHexString(byte[] array, int offset, int length)
public static String dumpHexString(@Nullable byte[] array, int offset, int length)
{
if (array == null) return "(null)";
StringBuilder result = new StringBuilder();
byte[] line = new byte[16];

3
core/tests/coretests/src/com/android/internal/util/HexDumpTest.java
View File

@@ -25,4 +25,7 @@ public final class HexDumpTest extends TestCase {
assertEquals("ABCDEF", HexDump.toHexString(
new byte[] { (byte) 0xab, (byte) 0xcd, (byte) 0xef }, true));
}
public void testNullArray() {
assertEquals("(null)", HexDump.toHexString(null));
}
}