### Question:
SQLUtil { public static String getExactlyValue(final String value) { return null == value ? null : CharMatcher.anyOf("[]`'\"").removeFrom(value); }  static String getExactlyValue(final String value);  }### Answer:
@Test public void testGetExactlyValue() throws Exception { assertThat(SQLUtil.getExactlyValue("`xxx`"), is("xxx")); assertThat(SQLUtil.getExactlyValue("[xxx]"), is("xxx")); assertThat(SQLUtil.getExactlyValue("\"xxx\""), is("xxx")); assertThat(SQLUtil.getExactlyValue("'xxx'"), is("xxx")); }