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fix code
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@@ -20,10 +20,10 @@ public interface JSONGetter<K> extends OptNullBasicTypeFromObjectGetter<K> {
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JSONConfig getConfig();
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/**
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* key对应值是否为<code>null</code>或无此key
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* key对应值是否为{@code null}或无此key
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*
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* @param key 键
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* @return true 无此key或值为<code>null</code>或{@link JSONNull#NULL}返回<code>false</code>,其它返回<code>true</code>
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* @return true 无此key或值为{@code null}或{@link JSONNull#NULL}返回{@code false},其它返回{@code true}
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*/
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default boolean isNull(K key) {
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return JSONNull.NULL.equals(this.getObj(key));
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