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https://issues.apache.org/jira/browse/PDFBOX-3155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler updated PDFBOX-3155:
----------------------------------
    Description: 
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 3 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".

  was:
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".


> 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: 1.8.8, 1.8.10
>            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 3 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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