### Question:
ZKConfig { public boolean getBoolean(String key) { return getBoolean(key, false); } ZKConfig();  ZKConfig(String configPath);  ZKConfig(File configFile); String getProperty(String key); String getProperty(String key, String defaultValue); String getJaasConfKey(); void setProperty(String key, String value); void addConfiguration(File configFile); void addConfiguration(String configPath); boolean getBoolean(String key); boolean getBoolean(String key, boolean defaultValue); int getInt(String key, int defaultValue); static final String JUTE_MAXBUFFER; static final String KINIT_COMMAND; static final String JGSS_NATIVE; }### Answer:
@Test @Timeout(value = 10) public void testBooleanRetrievalFromPropertyDefault() { ZKConfig conf = new ZKConfig(); String prop = "UnSetProperty" + System.currentTimeMillis(); boolean defaultValue = false; boolean result = conf.getBoolean(prop, defaultValue); assertEquals(defaultValue, result); }