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generic collection type resolution respects upper bound as well

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This commit is contained in:
Juergen Hoeller
2009-02-13 09:09:56 +00:00
parent 483104f0fa
commit e58d036c73
4 changed files with 42 additions and 14 deletions
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org.springframework.core/src/main/java/org/springframework/core/GenericCollectionTypeResolver.java
+10 -3
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@@ -341,9 +341,16 @@ public abstract class GenericCollectionTypeResolver {
}
}
if (paramType instanceof WildcardType) {
Type[] lowerBounds = ((WildcardType) paramType).getLowerBounds();
if (lowerBounds != null && lowerBounds.length > 0) {
paramType = lowerBounds[0];
WildcardType wildcardType = (WildcardType) paramType;
Type[] upperBounds = wildcardType.getUpperBounds();
if (upperBounds != null && upperBounds.length > 0 && !Object.class.equals(upperBounds[0])) {
paramType = upperBounds[0];
}
else {
Type[] lowerBounds = wildcardType.getLowerBounds();
if (lowerBounds != null && lowerBounds.length > 0 && !Object.class.equals(lowerBounds[0])) {
paramType = lowerBounds[0];
}
}
}
if (paramType instanceof ParameterizedType) {