[jira] [Created] (PDFBOX-1585) org.apache.pdfbox.util.PDFTextStripper.getText() causes thread to block indefinitely

["Sascha Szott (JIRA)" <ji...@apache.org>]

Sascha Szott created PDFBOX-1585:
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             Summary: org.apache.pdfbox.util.PDFTextStripper.getText() causes thread to block indefinitely
                 Key: PDFBOX-1585
                 URL: https://issues.apache.org/jira/browse/PDFBOX-1585
             Project: PDFBox
          Issue Type: Bug
          Components: PDFReader, Text extraction
    Affects Versions: 1.8.1
         Environment: Ubuntu Linux 10.04
Solaris 10
Java 1.6.0_34
            Reporter: Sascha Szott


URL of the problematic pdf file is http://www.redalyc.org/pdf/540/54017220.pdf

My program tries to extract the fulltext of the given pdf file in the following manner:
{code}
String fileName = "/home/sascha/testfile.pdf"                   // 1
PDDocument pdDoc = PDDocument.load(fileName, true); // 2
PDFTextStripper text = new PDFTextStripper();	            // 3
String fullText = text.getText(pdDoc);                               // 4
{code}

The call in line 4 causes the thread to block indefinitely (runs now for more than two days without making any progress). The file is stored in a local file system (no network interaction occurs).

jstack indicates that the thread is not deadlocked:
{code}
"main" prio=10 tid=0x000000004187d800 nid=0x6ed8 runnable [0x00007f9e28e56000]
   java.lang.Thread.State: RUNNABLE
        at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
        at java.io.BufferedInputStream.read(BufferedInputStream.java:237)
        - locked <0x00000007d73a84a0> (a java.io.BufferedInputStream)
        at java.io.FilterInputStream.read(FilterInputStream.java:66)
        at java.io.PushbackInputStream.read(PushbackInputStream.java:122)
        at org.apache.pdfbox.io.PushBackInputStream.read(PushBackInputStream.java:91)
        at org.apache.pdfbox.pdfparser.BaseParser.parseCOSHexString(BaseParser.java:1006)
        at org.apache.pdfbox.pdfparser.BaseParser.parseCOSString(BaseParser.java:808)
        at org.apache.pdfbox.pdfparser.PDFStreamParser.parseNextToken(PDFStreamParser.java:260)
        at org.apache.pdfbox.pdfparser.PDFStreamParser.access$000(PDFStreamParser.java:46)
        at org.apache.pdfbox.pdfparser.PDFStreamParser$1.tryNext(PDFStreamParser.java:182)
        at org.apache.pdfbox.pdfparser.PDFStreamParser$1.hasNext(PDFStreamParser.java:194)
        at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:255)
        at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:235)
        at org.apache.pdfbox.util.operator.Invoke.process(Invoke.java:67)
        at org.apache.pdfbox.util.PDFStreamEngine.processOperator(PDFStreamEngine.java:554)
        at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:268)
        at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:235)
        at org.apache.pdfbox.util.operator.Invoke.process(Invoke.java:67)
        at org.apache.pdfbox.util.PDFStreamEngine.processOperator(PDFStreamEngine.java:554)
        at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:268)
        at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:235)
        at org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:215)
        at org.apache.pdfbox.util.PDFTextStripper.processPage(PDFTextStripper.java:455)
        at org.apache.pdfbox.util.PDFTextStripper.processPages(PDFTextStripper.java:379)
        at org.apache.pdfbox.util.PDFTextStripper.writeText(PDFTextStripper.java:335)
        at org.apache.pdfbox.util.PDFTextStripper.getText(PDFTextStripper.java:254)
        at de.kobv.ked.extraction.FulltextExtraction.getFulltext(FulltextExtraction.java:65)
{code}

Any idea or advice on how to fix that problem? Is it possible to set up a timeout for the extraction operation?

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