Hi Tilman, We are using "PDType1Font.HELVETICA".
Thanks, Patrick -----Original Message----- From: Tilman Hausherr [mailto:[email protected]] Sent: Monday, June 27, 2016 3:17 PM To: [email protected] Subject: Re: threads using PDFBox getting stuck infinite loop Am 27.06.2016 um 20:55 schrieb Stahle, Patrick: > Hi, > > We have a relatively heavily threaded application which is calling pdfbox to > stamp certain pdf files. We have been in production for a little over a week > and have run into a few threads getting stuck. The stack trace is the > following: > > ### Thread id=34, name="dispatch_2_20160626211454_1064" > # ThreadInfo: "dispatch_2_20160626211454_1064" Id=34 RUNNABLE # CPU: > threadCpuTime=49,541,548.824 ms, threadUserTime=49,538,533.066 ms # > Contention: blockedCount=33 , blockedTime=123 ms # Contention: > lockName=null , lockOwnerId=-1, lockOwnerName=null > java.util.HashMap.put(HashMap.java:473) > java.util.HashSet.add(HashSet.java:217) > java.util.AbstractCollection.addAll(AbstractCollection.java:334) > org.apache.pdfbox.pdmodel.font.encoding.Encoding.contains(Encoding.jav > a:109) > org.apache.pdfbox.pdmodel.font.PDType1Font.encode(PDType1Font.java:343 > ) > org.apache.pdfbox.pdmodel.font.PDFont.encode(PDFont.java:286) > org.apache.pdfbox.pdmodel.font.PDFont.getStringWidth(PDFont.java:315) > com.tycoelectronics.emcs.stamppdf.StampEnginePDFBox.getLongestTextWidt > h(StampEnginePDFBox.java:1369) > : > : > > We seem to be getting stuck in PDFont classes HashMap which is unsynchronized > class. > > Any suggestions? > > We are using PDFBox 2.0.0 release... Update to 2.0.2. What PDFont are you using? One of the predefined "standard 14"? If yes, then this code public boolean contains(String name) { // we have to wait until all add() calls are done before building the name cache // otherwise /Differences won't be accounted for if (names == null) { names = new HashSet<String>(codeToName.size()); names.addAll(codeToName.values()); } return names.contains(name); } might be risky :-( Workaround idea: call contains("space") for the fonts you're using before the real business starts. Tilman --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
