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https://issues.apache.org/jira/browse/PDFBOX-1013?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Craig Stires updated PDFBOX-1013:
---------------------------------
Attachment: pdfbox_pdshading_tostring_npe.patch
a proposed patch to prevent throwing NPE
> NullPointerException in
> org.apache.pdfbox.pdmodel.graphics.PDShading.toString, when getDomain()
> returns null
> ------------------------------------------------------------------------------------------------------------
>
> Key: PDFBOX-1013
> URL: https://issues.apache.org/jira/browse/PDFBOX-1013
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 1.5.0
> Environment: Windows 7, and Ubuntu 8.04
> PDFBox 1.5.0
> Reporter: Craig Stires
> Priority: Minor
> Fix For: 1.6.0
>
> Attachments: pdfbox_pdshading_tostring_npe.patch
>
>
> The problem is that the toString method is called on objects which may have
> been returned as null
> The suggested fix to this, in the attached patch is to check if null, then
> write an empty string
> String s = "Shading " + shadingname + "\n"
> + "\tShadingType: " + getShadingType() + "\n"
> + "\tColorSpace: " + sColorSpace + "\n"
> + "\tAntiAlias: " + getAntiAlias() + "\n"
> + "\tCoords: " + (getCoords() != null ? getCoords().toString() :
> "") + "\n"
> + "\tDomain: " + (getDomain() != null ? getDomain().toString() :
> "") + "\n"
> + "\tFunction: " + sFunction + "\n"
> + "\tExtend: " + (getExtend() != null ? getExtend().toString() :
> "") + "\n"
> + "\tRaw Value:\n" +
> <Error message as dumped to log>
> INFO [main] (PDFStreamEngine.java557) - unsupported/disabled operation: BDC
> INFO [main] (PDFStreamEngine.java557) - unsupported/disabled operation: BX
> WARN [main] (SHFill.java63) - java.lang.NullPointerException
> java.lang.NullPointerException
> at
> org.apache.pdfbox.pdmodel.graphics.PDShading.toString(PDShading.java:204)
> at org.apache.pdfbox.pdfviewer.PageDrawer.SHFill(PageDrawer.java:398)
> at
> org.apache.pdfbox.util.operator.pagedrawer.SHFill.process(SHFill.java:58)
> at
> org.apache.pdfbox.util.PDFStreamEngine.processOperator(PDFStreamEngine.java:551)
> at
> org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:274)
> at
> org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:251)
> at
> org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:225)
> at
> org.apache.pdfbox.pdfviewer.PageDrawer.drawPage(PageDrawer.java:107)
> at org.apache.pdfbox.pdmodel.PDPage.convertToImage(PDPage.java:722)
> INFO [main] (PDFStreamEngine.java557) - unsupported/disabled operation: EX
> INFO [main] (PDFStreamEngine.java557) - unsupported/disabled operation: EMC
> </Error message as dumped to log>
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