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HADOOP-12117. Potential NPE from Configuration#loadProperty with allowNullValueProperties set. (Contributed by zhihai xu)

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This commit is contained in:
Vinayakumar B 2015-07-07 16:11:27 +05:30
parent af63427c6d
commit 99c8c5839b
3 changed files with 22 additions and 4 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -933,6 +933,9 @@ Release 2.8.0 - UNRELEASED
HADOOP-12186. ActiveStandbyElector shouldn't call monitorLockNodeAsync
multiple times (zhihai xu via vinayakumarb)
HADOOP-12117. Potential NPE from Configuration#loadProperty with
allowNullValueProperties set. (zhihai xu via vinayakumarb)
Release 2.7.2 - UNRELEASED
INCOMPATIBLE CHANGES

4
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
View File

@ -2739,10 +2739,10 @@ private void overlay(Properties to, Properties from) {
private void loadProperty(Properties properties, String name, String attr,
String value, boolean finalParameter, String[] source) {
if (value != null || allowNullValueProperties) {
if (!finalParameters.contains(attr)) {
if (value==null && allowNullValueProperties) {
if (value == null) {
value = DEFAULT_STRING_CHECK;
}
if (!finalParameters.contains(attr)) {
properties.setProperty(attr, value);
if(source != null) {
updatingResource.put(attr, source);

15
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestConfiguration.java
View File

@ -42,6 +42,7 @@
import junit.framework.TestCase;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.fail;
import org.apache.commons.lang.StringUtils;
import org.apache.hadoop.conf.Configuration.IntegerRanges;
@ -49,6 +50,7 @@
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.net.NetUtils;
import static org.apache.hadoop.util.PlatformName.IBM_JAVA;
import org.codehaus.jackson.map.ObjectMapper;
import org.mockito.Mockito;
@ -1511,6 +1513,19 @@ public void run() {
// it's expected behaviour.
}
public void testNullValueProperties() throws Exception {
Configuration conf = new Configuration();
conf.setAllowNullValueProperties(true);
out = new BufferedWriter(new FileWriter(CONFIG));
startConfig();
appendProperty("attr", "value", true);
appendProperty("attr", "", true);
endConfig();
Path fileResource = new Path(CONFIG);
conf.addResource(fileResource);
assertEquals("value", conf.get("attr"));
}
public static void main(String[] argv) throws Exception {
junit.textui.TestRunner.main(new String[]{
TestConfiguration.class.getName()