diff --git a/src/changes/changes.xml b/src/changes/changes.xml index 036c643b9..811cbc297 100644 --- a/src/changes/changes.xml +++ b/src/changes/changes.xml @@ -22,6 +22,7 @@ + NumberUtils#isNumber does not allow for hex 0XABCD StringUtils.toEncodedString(byte[], Charset) needlessly throws UnsupportedEncodingException Add APIs MutableBoolean setTrue() and setFalse() ConstantInitializerTest fails when building with IBM JDK 7 diff --git a/src/main/java/org/apache/commons/lang3/math/NumberUtils.java b/src/main/java/org/apache/commons/lang3/math/NumberUtils.java index 33a2dd8e7..f1054eeb2 100644 --- a/src/main/java/org/apache/commons/lang3/math/NumberUtils.java +++ b/src/main/java/org/apache/commons/lang3/math/NumberUtils.java @@ -1345,7 +1345,13 @@ public class NumberUtils { boolean foundDigit = false; // deal with any possible sign up front final int start = (chars[0] == '-') ? 1 : 0; - if (sz > start + 1 && chars[start] == '0' && chars[start + 1] == 'x') { + if (sz > start + 1 && chars[start] == '0' + && + ( + (chars[start + 1] == 'x') || + (chars[start + 1] == 'X') + ) + ) { int i = start + 2; if (i == sz) { return false; // str == "0x" diff --git a/src/test/java/org/apache/commons/lang3/math/NumberUtilsTest.java b/src/test/java/org/apache/commons/lang3/math/NumberUtilsTest.java index 9b52ac6de..d211b6c49 100644 --- a/src/test/java/org/apache/commons/lang3/math/NumberUtilsTest.java +++ b/src/test/java/org/apache/commons/lang3/math/NumberUtilsTest.java @@ -1225,6 +1225,12 @@ public class NumberUtilsTest { compareIsNumberWithCreateNumber("1.1L", false); // LANG-664 } + @Test + public void testLANG972() { + compareIsNumberWithCreateNumber("0xABCD", true); + compareIsNumberWithCreateNumber("0XABCD", true); + } + private void compareIsNumberWithCreateNumber(final String val, final boolean expected) { final boolean isValid = NumberUtils.isNumber(val); final boolean canCreate = checkCreateNumber(val);