THashMap.keySet().toArray(T[ ] array) doesn't follow SUN spec
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Key: CDV-911
URL: https://jira.terracotta.org/jira//browse/CDV-911
Project: Community Development
Issue Type: Bug
Components: DSO:L1
Affects Versions: 2.6.4, 2.7.0-stable1, trunk-nightly
Reporter: Hung Huynh
Assignee: Issue Review Board
According to Sun's spec
http://java.sun.com/javase/6/docs/api/java/util/Set.html#toArray(T[])
array with bigger size than the collection in call toArray(T[] a) will be null
terminated.
We are not following that spec. The output does show the array in local VM is
null terminated but the (third) value on the server isn't null (see screen shot)
public class Test {
// Roots
private Map<String, String> map = new ConcurrentHashMap<String,
String>();
private Object[] array = new Object[4];
public void run() {
map.put("key1", "value1");
map.put("key2", "value2");
synchronized (array) {
Arrays.fill(array, "filler");
System.out.println("before: " + Arrays.asList(array));
array = map.entrySet().toArray(array);
System.out.println("after: " + Arrays.asList(array));
}
}
public static void main(String[] args) {
new Test().run();
}
}
=================================================================================================
Output:
before: [filler, filler, filler, filler]
after: [key1=value1, key2=value2, null, filler]
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