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fix NPE

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This commit is contained in:
Liana Bakradze
2016-08-02 14:16:33 +03:00
parent 3321a6ed4a
commit 3ce4f8dfa2
1 changed files with 2 additions and 3 deletions
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python/educational-core/student/src/com/jetbrains/edu/learning/StudySerializationUtils.java
+2 -3
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@@ -406,10 +406,9 @@ public class StudySerializationUtils {
final JsonArray hintsArray = new JsonArray();
try {
final Type listType = new TypeToken<List<String>>() {
}.getType();
final Type listType = new TypeToken<List<String>>() {}.getType();
final List<String> hints = gson.fromJson(hintString, listType);
if (!hints.isEmpty()) {
if (hints != null && !hints.isEmpty()) {
for (int i = 0; i < hints.size(); i++) {
if (i == 0) {
placeholderObject.addProperty(HINT, hints.get(0));