windchill official code bug

Question

---**Issue in `TimelineHistoryHelper.getLatestModifyTimestamp`**The `Timestamp timestamp = Timestamp.valueOf("0000-00-00 00:00:00.000000000");` line consistently triggers an error.Code snippet:```javaprotected static Timestamp getLatestModifyTimestamp(Persistable paramPersistable) throws WTException {Timestamp timestamp = Timestamp.valueOf("0000-00-00 00:00:00.000000000");ArrayList arrayList = new ArrayList();arrayList.add((LifeCycleManaged) paramPersistable);HashMap hashMap = LifeCycleHelper.service.getHistoryForIterations(arrayList);if (!hashMap.isEmpty()) {ArrayList arrayList1 = (ArrayList) hashMap.values().toArray()[0];for (byte b = 0; b < arrayList1.size(); b++) {LifeCycleHistory lifeCycleHistory = arrayList1.get(b);if (lifeCycleHistory.getModifyTimestamp().after(timestamp))timestamp = lifeCycleHistory.getModifyTimestamp();}}return timestamp;}```**How to resolve the above issue**

HelesicPetr · Accepted Answer

Hi @TB_10966080

What Windchill version do you use?

In my Windchill the helper does not contains the row with zeros. there is just null

Windchill 12.0.2.0 library

 protected static Timestamp getLatestModifyTimestamp(Persistable var0) throws WTException {
 Timestamp var1 = null;
 ArrayList var2 = new ArrayList();
 var2.add((LifeCycleManaged)var0);
 HashMap var3 = LifeCycleHelper.service.getHistoryForIterations(var2);
 if (!var3.isEmpty()) {
 ArrayList var4 = (ArrayList)var3.values().toArray()[0];

 for(int var5 = 0; var5 < var4.size(); ++var5) {
 LifeCycleHistory var6 = (LifeCycleHistory)var4.get(var5);
 if (var1 == null || var6.getModifyTimestamp().after(var1)) {
 var1 = var6.getModifyTimestamp();
 }
 }
 }

 if (var1 == null) {
 var1 = var0.getPersistInfo().getModifyStamp() != null ? var0.getPersistInfo().getModifyStamp() : var0.getPersistInfo().getCreateStamp();
 }

 return var1;
 }

So you can copy the class from the WNCWEB.jar

recompile it

correct it

remove it from WNCWEB

place your class to the codebase correct place same as it was in the WNCWEB.jar

and everything will work 😄

PetrH

rleir · Answer

"Today you should not (normally) have a need for a Timestamp object. The java.sql.Timestamp class is long outdated. Once we used it for transferring timestamp values with nanosecond precision to and from SQL databases. Today we use the Instant class for this instead. Instant is one of the classes of java.time, "

https://stackoverflow.com/questions/49809816/timestamp-valueof-method

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