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See HADOOP-12406 #32

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18 changes: 9 additions & 9 deletions ...-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/AbstractMapWritable.java
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Original file line number Diff line number Diff line change
Expand Up @@ -195,23 +195,23 @@ public void write(DataOutput out) throws IOException {

@Override
public void readFields(DataInput in) throws IOException {

// Get the number of "unknown" classes

newClasses = in.readByte();


// Get the class loader of the current thread because
// Class.forName does not have the job jar in its path
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();

// Then read in the class names and add them to our tables

for (int i = 0; i < newClasses; i++) {
byte id = in.readByte();
String className = in.readUTF();
try {
addToMap(Class.forName(className), id);

addToMap(classLoader.loadClass(className), id);
} catch (ClassNotFoundException e) {
throw new IOException("can't find class: " + className + " because "+
e.getMessage());
throw new IOException(e);
}
}
}
}
}