Marcono1234 created HADOOP-17606:
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Summary: VersionInfoMojo.byteArrayToString(...) creates malformed
hex strings
Key: HADOOP-17606
URL: https://issues.apache.org/jira/browse/HADOOP-17606
Project: Hadoop Common
Issue Type: Bug
Affects Versions: 3.2.2
Reporter: Marcono1234
{{org.apache.hadoop.maven.plugin.versioninfo.VersionInfoMojo.byteArrayToString(byte[])}}
creates malformed hex strings:
{code}
private String byteArrayToString(byte[] array) {
StringBuilder sb = new StringBuilder();
for (byte b : array) {
sb.append(Integer.toHexString(0xff & b));
}
return sb.toString();
}
{code}
The issue here is that {{toHexString}} returns only a single hex char if the
value is < 16. Therefore {{1, 0}} and {{16}} would both have the result
{{"10"}}.
The correct implementation would be:
{code}
private String byteArrayToString(byte[] array) {
StringBuilder sb = new StringBuilder();
for (byte b : array) {
int unsignedB = b & 0xff;
if (unsignedB < 16) {
sb.append('0');
}
sb.append(Integer.toHexString(unsignedB));
}
return sb.toString();
}
{code}
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