assertEquals(4, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.5.0_15");
        assertEquals(5, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.6.0_34");
        assertEquals(6, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.7.0_25");
        assertEquals(7, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.8.0_171");

        }
    }

    // Test edge cases to understand the validation behavior
    @Test
    public void test_edgeCaseBehavior() {
        String[] edgeCases = { "0 0 25 * * ?", // Invalid day of month
                "0 60 * * * ?", // Invalid minute
                "0 0 0 32 1 ?", // Invalid day
                "0 0 0 1 13 ?", // Invalid month
        };

ost\":1.0}},{\"bool\":{\"should\":[{\"match_phrase\":{\"title\":{\"query\":\"QUERY2\",\"slop\":0,\"zero_terms_query\":\"NONE\",\"boost\":2.5}}},{\"match_phrase\":{\"content\":{\"query\":\"QUERY2\",\"slop\":0,\"zero_terms_query\":\"NONE\",\"boost\":0.25}}},{\"fuzzy\":{\"title\":{\"value\":\"QUERY2\",\"fuzziness\":\"AUTO\",\"prefix_length\":0,\"max_expansions\":10,\"transpositions\":true,\"boost\":0.01}}},{\"fuzzy\":{\"content\":{\"value\":\"QUERY2\",\"fuzziness\":\"AUTO\",\"prefix_length\":0,\"ma...