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Fixed a NullPointerException case.

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Could occur when a search request was performed just after peer startup,
and the Switchboard Thread "LibraryProvider.initialize" had completed,
thus requesting a ProbabilisticClassifier not completely initialized
(and having a null contexts property).
This commit is contained in:
luccioman 2016-12-02 13:45:45 +01:00
parent 6bc2bf1aa4
commit 3f561c1635
1 changed files with 2 additions and 2 deletions

4
source/net/yacy/document/ProbabilisticClassifier.java

@ -105,7 +105,7 @@ public class ProbabilisticClassifier {
}
private static Map<String, Context> contexts;
private static Map<String, Context> contexts = new HashMap<>();
public static Set<String> getContextNames() {
return contexts.keySet();
@ -120,7 +120,7 @@ public class ProbabilisticClassifier {
* @param path_to_context_directory directory containing contexts wich are directories containing .txt files. One of them must be named 'negative.txt'
*/
public static void initialize(File path_to_context_directory) {
contexts = new HashMap<>();
contexts.clear();
String[] context_candidates = path_to_context_directory.list();
for (String context_candidate: context_candidates) {
File ccf = new File(path_to_context_directory, context_candidate);