Uwe Schindler created PDFBOX-3155:
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Summary: org.apache.pdfbox.util.PDFTextStripper class
initialization throws NumberFormatException with recent Verona-enabled Java 9
JVMs
Key: PDFBOX-3155
URL: https://issues.apache.org/jira/browse/PDFBOX-3155
Project: PDFBox
Issue Type: Bug
Affects Versions: 1.8.10, 1.8.8
Reporter: Uwe Schindler
Priority: Critical
Lucene/Solr runs its whole testsuite also with Java 9 EA releases to trigger
bugs early. In our tests (Solr + TIKA) we found out that
org.apache.pdfbox.util.PDFTextStripper throws a NumberFormatException in its
static initializer when parsing the "java.version" system property. The reason
for failure is a change in Java 9, where version numbers got a new format.
There are 2 problems:
- It should not assume that all components are really a number. So it should
try/catch NumberFormatException and assign some "unknown" version
- The code should really use "java.specification.version". This is standardized
and only contains digits.
- The code should also be prepared to handle version numbers without minor
version! E.g. Java 9 only has "9" instead of "1.9" as its main version number.
For the use case I would nuke this check and find a better workaround.
Relying on String parsing for non-standardized system properties in a static
class initializer is the reason why this bug is raised to level "Critical".
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