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https://issues.apache.org/jira/browse/PDFBOX-5259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17399980#comment-17399980
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Jordan Daigle commented on PDFBOX-5259:
---------------------------------------
In our case, we have a command line application where the logs output go
directly into the console.
And we are using the default logging from java.
So if i'm not mistaken, in linux those logs go into "/proc/<pid>/fd/1" (1 =
stdout, 2 = stderr)
There is no network folder or anything similar that I could think of that could
get on the way in our situation.
I will look at Log4j if it could also help.
> Process hangs with PdfBox 2.0.24
> --------------------------------
>
> Key: PDFBOX-5259
> URL: https://issues.apache.org/jira/browse/PDFBOX-5259
> Project: PDFBox
> Issue Type: Bug
> Components: AcroForm
> Affects Versions: 2.0.24
> Environment: openjdk 11.0.11 2021-04-20
> OpenJDK Runtime Environment (build 11.0.11+9-Ubuntu-0ubuntu2.18.04)
> OpenJDK 64-Bit Server VM (build 11.0.11+9-Ubuntu-0ubuntu2.18.04, mixed mode,
> sharing)
> Reporter: Jordan Daigle
> Priority: Major
> Attachments: jstack.out
>
>
> I have a java process that got stuck randomly while setting values into a pdf
> form with PDFBOX 2.0.24
> the "strace" command return :
> {code:java}
> root@appname:/tmp# strace -p 26734
> strace: Process 26734 attached
> futex(0x7f97791589d0, FUTEX_WAIT, 26735, NULL
> root@appname:/tmp# strace -p 26735
> strace: Process 26735 attached
> write(2, "Aug 13, 2021 11:12:13 AM org.apa"..., 232{code}
> I added the jstack output of the process in the jstack.out attachment
> Seem to happen completely randomly.
> I don't have any issue if I rerun manually the same command.
> java.lang.Thread.State: RUNNABLE at
> java.io.FileOutputStream.writeBytes([email protected]/Native Method) at
> java.io.FileOutputStream.write([email protected]/FileOutputStream.java:354)
> at
> java.io.BufferedOutputStream.write([email protected]/BufferedOutputStream.java:123)
> - locked <0x00000000c246e910> (a java.io.BufferedOutputStream) at
> java.io.PrintStream.write([email protected]/PrintStream.java:559) - locked
> <0x00000000c246e8e8> (a java.io.PrintStream) at
> sun.nio.cs.StreamEncoder.writeBytes([email protected]/StreamEncoder.java:233)
> at
> sun.nio.cs.StreamEncoder.implFlushBuffer([email protected]/StreamEncoder.java:312)
> at
> sun.nio.cs.StreamEncoder.implFlush([email protected]/StreamEncoder.java:316)
> at sun.nio.cs.StreamEncoder.flush([email protected]/StreamEncoder.java:153) -
> locked <0x00000000c363d1c8> (a java.io.OutputStreamWriter) at
> java.io.OutputStreamWriter.flush([email protected]/OutputStreamWriter.java:251)
> at
> java.util.logging.StreamHandler.flush([email protected]/StreamHandler.java:247)
> - locked <0x00000000c363d178> (a java.util.logging.ConsoleHandler) at
> java.util.logging.ConsoleHandler.publish([email protected]/ConsoleHandler.java:96)
> at java.util.logging.Logger.log([email protected]/Logger.java:979) at
> java.util.logging.Logger.doLog([email protected]/Logger.java:1006) at
> java.util.logging.Logger.logp([email protected]/Logger.java:1172) at
> org.apache.commons.logging.impl.Jdk14Logger.log(Jdk14Logger.java:87) at
> org.apache.commons.logging.impl.Jdk14Logger.info(Jdk14Logger.java:176) at
> org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.getFormattedValue(AppearanceGeneratorHelper.java:255)
> at
> org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.setAppearanceValue(AppearanceGeneratorHelper.java:172)
> at
> org.apache.pdfbox.pdmodel.interactive.form.PDTextField.constructAppearances(PDTextField.java:264)
> at
> org.apache.pdfbox.pdmodel.interactive.form.PDTerminalField.applyChange(PDTerminalField.java:228)
> at
> org.apache.pdfbox.pdmodel.interactive.form.PDTextField.setValue(PDTextField.java:219)
> at pdf.XFDFMerger.trySetValue(XFDFMerger.java:396) at
> pdf.XFDFMerger.importFDFField(XFDFMerger.java:219) at
> pdf.XFDFMerger.importFDFDocument(XFDFMerger.java:187) at
> pdf.XFDFMerger.mergeFields(XFDFMerger.java:107) at
> pdf.XFDFMerger.mergeXFDF(XFDFMerger.java:59) at
> commands.MergeXFDFCommand.run(MergeXFDFCommand.java:33) at
> picocli.CommandLine.executeUserObject(CommandLine.java:1919) at
> picocli.CommandLine.access$1100(CommandLine.java:145) at
> picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2332)
> at picocli.CommandLine$RunLast.handle(CommandLine.java:2326) at
> picocli.CommandLine$RunLast.handle(CommandLine.java:2291) at
> picocli.CommandLine$AbstractParseResultHandler.handleParseResult(CommandLine.java:2152)
> at picocli.CommandLine.parseWithHandlers(CommandLine.java:2530) at
> picocli.CommandLine.run(CommandLine.java:2988) at
> picocli.CommandLine.run(CommandLine.java:2925) at pdfbox.main(pdfbox.java:15)
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