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*/ public void setProperty(String key, Object value) throws InvalidPropertyException { try { this.properties.put(key, value) ; } catch (NullPointerException npe) { throw new InvalidPropertyException(key) ; }// try }// setProperty(String, Object)
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* @throws InvalidPropertyException * if {@code key} is {@code null} */ public Object getProperty(String key) throws InvalidPropertyException { if (key == null) { throw new InvalidPropertyException(key) ; }// if return this.properties.get(key) ; }// getProperty(String)
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