| /* |
| * Copyright (c) 2003, 2008, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @summary Test that SnmpTimeTicks wraps around when it is passed a long |
| * value |
| * @bug 4955105 |
| * @build TimeTicksWrapping |
| * @run main TimeTicksWrapping |
| */ |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| |
| public class TimeTicksWrapping { |
| // We use an SnmpTimeticksBuilder in order to adapt this test case to a |
| // configuration where the SNMP packages are not present in rt.jar. |
| // |
| public static final class SnmpTimeticksBuilder { |
| public static final long MAX_VALUE = 0x0ffffffffL; |
| public static final String SNMP_TIME_TICKS_CLASS_NAME = |
| "com.sun.jmx.snmp.SnmpTimeticks"; |
| private static final Class<?> SNMP_TIME_TICKS_CLASS; |
| private static final Constructor<?> SNMP_long_CTOR; |
| private static final Constructor<?> SNMP_LONG_CTOR; |
| private static final Method SNMP_LONG_VALUE; |
| static { |
| Class<?> snmpTimeTicksClass; |
| try { |
| snmpTimeTicksClass = |
| Class.forName(SNMP_TIME_TICKS_CLASS_NAME, true, null); |
| } catch (ClassNotFoundException x) { |
| snmpTimeTicksClass = null; |
| System.err.println("WARNING: can't load "+ |
| SNMP_TIME_TICKS_CLASS_NAME); |
| } catch (NoClassDefFoundError x) { |
| snmpTimeTicksClass = null; |
| System.err.println("WARNING: can't load "+ |
| SNMP_TIME_TICKS_CLASS_NAME); |
| } |
| SNMP_TIME_TICKS_CLASS = snmpTimeTicksClass; |
| if (SNMP_TIME_TICKS_CLASS != null) { |
| try { |
| SNMP_long_CTOR = |
| SNMP_TIME_TICKS_CLASS.getConstructor(long.class); |
| } catch (Exception x) { |
| throw new ExceptionInInitializerError(x); |
| } |
| } else { |
| SNMP_long_CTOR = null; |
| } |
| if (SNMP_TIME_TICKS_CLASS != null) { |
| try { |
| SNMP_LONG_CTOR = |
| SNMP_TIME_TICKS_CLASS.getConstructor(Long.class); |
| } catch (Exception x) { |
| throw new ExceptionInInitializerError(x); |
| } |
| } else { |
| SNMP_LONG_CTOR = null; |
| } |
| if (SNMP_TIME_TICKS_CLASS != null) { |
| try { |
| SNMP_LONG_VALUE = |
| SNMP_TIME_TICKS_CLASS.getMethod("longValue"); |
| } catch (Exception x) { |
| throw new ExceptionInInitializerError(x); |
| } |
| } else { |
| SNMP_LONG_VALUE = null; |
| } |
| |
| } |
| |
| private final Object timeticks; |
| |
| public SnmpTimeticksBuilder(long ticks) throws Exception { |
| timeticks = newSnmpTimeticks(ticks); |
| } |
| public SnmpTimeticksBuilder(Long ticks) throws Exception { |
| timeticks = newSnmpTimeticks(ticks); |
| } |
| public long longValue() throws Exception { |
| return longValue(timeticks); |
| } |
| |
| public static boolean isSnmpPresent() { |
| System.out.println(TimeTicksWrapping.class.getName()+ |
| ": Testing for SNMP Packages..."); |
| return SNMP_TIME_TICKS_CLASS != null; |
| } |
| |
| private static Object newSnmpTimeticks(long time) |
| throws Exception { |
| try { |
| return SNMP_long_CTOR.newInstance(time); |
| } catch (InvocationTargetException x) { |
| final Throwable cause = x.getCause(); |
| if (cause instanceof Exception) throw (Exception) cause; |
| if (cause instanceof Error) throw (Error) cause; |
| throw x; |
| } |
| } |
| |
| private static Object newSnmpTimeticks(Long time) |
| throws Exception { |
| try { |
| return SNMP_LONG_CTOR.newInstance(time); |
| } catch (InvocationTargetException x) { |
| final Throwable cause = x.getCause(); |
| if (cause instanceof Exception) throw (Exception) cause; |
| if (cause instanceof Error) throw (Error) cause; |
| throw x; |
| } |
| } |
| |
| private static long longValue(Object o) |
| throws Exception { |
| try { |
| return ((Long)SNMP_LONG_VALUE.invoke(o)).longValue(); |
| } catch (InvocationTargetException x) { |
| final Throwable cause = x.getCause(); |
| if (cause instanceof Exception) throw (Exception) cause; |
| if (cause instanceof Error) throw (Error) cause; |
| throw x; |
| } |
| } |
| |
| } |
| |
| public static final long[] oks = { |
| 0L, 1L, (long)Integer.MAX_VALUE, (long)Integer.MAX_VALUE*2, |
| (long)Integer.MAX_VALUE*2+1L, (long)Integer.MAX_VALUE*2+2L, |
| (long)Integer.MAX_VALUE*3, |
| SnmpTimeticksBuilder.MAX_VALUE, SnmpTimeticksBuilder.MAX_VALUE+1L, |
| SnmpTimeticksBuilder.MAX_VALUE*3-1L, Long.MAX_VALUE |
| }; |
| |
| public static final long[] kos = { |
| -1L, (long)Integer.MIN_VALUE, (long)Integer.MIN_VALUE*2, |
| (long)Integer.MIN_VALUE*2-1L, (long)Integer.MIN_VALUE*3, |
| -SnmpTimeticksBuilder.MAX_VALUE, -(SnmpTimeticksBuilder.MAX_VALUE+1L), |
| -(SnmpTimeticksBuilder.MAX_VALUE*3-1L), Long.MIN_VALUE |
| }; |
| |
| |
| public static void main(String args[]) { |
| if (!SnmpTimeticksBuilder.isSnmpPresent()) { |
| System.err.println("WARNING: "+ |
| SnmpTimeticksBuilder.SNMP_TIME_TICKS_CLASS_NAME+ |
| " not present."); |
| System.err.println(TimeTicksWrapping.class.getName()+ |
| ": test skipped."); |
| return; |
| } |
| try { |
| SnmpTimeticksBuilder t = null; |
| |
| for (int i=0;i<oks.length;i++) { |
| final long t1,t2,t3; |
| t1 = (new SnmpTimeticksBuilder(oks[i])).longValue(); |
| t2 = (new SnmpTimeticksBuilder(new Long(oks[i]))).longValue(); |
| t3 = oks[i]%0x0100000000L; |
| if (t1 != t3) |
| throw new Exception("Value should have wrapped: " + |
| oks[i] + " expected: " + t3); |
| if (t2 != t3) |
| throw new Exception("Value should have wrapped: " + |
| "Long("+oks[i]+") expected: " + t3); |
| |
| if (t1 > SnmpTimeticksBuilder.MAX_VALUE) |
| throw new Exception("Value should have wrapped " + |
| "for " + oks[i] + ": " + |
| t1 + " exceeds max: " + |
| SnmpTimeticksBuilder.MAX_VALUE); |
| if (t2 > SnmpTimeticksBuilder.MAX_VALUE) |
| throw new Exception("Value should have wrapped " + |
| "for " + oks[i] + ": " + |
| t2 + " exceeds max: " + |
| SnmpTimeticksBuilder.MAX_VALUE); |
| |
| if (t1 < 0) |
| throw new Exception("Value should have wrapped: " + |
| "for " + oks[i] + ": " + |
| t1 + " is negative"); |
| if (t2 < 0) |
| throw new Exception("Value should have wrapped: " + |
| "for " + oks[i] + ": " + |
| t2 + " is negative"); |
| |
| System.out.println("TimeTicks[" + oks[i] + |
| "] rightfully accepted: " + t3); |
| } |
| |
| for (int i=0;i<kos.length;i++) { |
| try { |
| t = new SnmpTimeticksBuilder(kos[i]); |
| throw new Exception("Value should have been rejected: " + |
| kos[i]); |
| } catch (IllegalArgumentException x) { |
| // OK! |
| } |
| try { |
| t = new SnmpTimeticksBuilder(new Long(kos[i])); |
| throw new Exception("Value should have been rejected: " + |
| "Long("+kos[i]+")"); |
| } catch (IllegalArgumentException x) { |
| // OK! |
| } |
| |
| System.out.println("TimeTicks[" + kos[i] + |
| "] rightfully rejected."); |
| } |
| |
| } catch(Exception x) { |
| x.printStackTrace(); |
| System.exit(1); |
| } |
| } |
| } |
