[PDFBOX-2154] NPE while rendering files with type3 fonts

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.3, 1.8.4, 1.8.5, 1.8.6, 1.8.7
• Fix Version/s: 1.8.7
• Labels: type3
• Assignee: Andreas Lehmkühler
• Reporter: Tilman Hausherr
• Created: 20/Jun/14 21:09
• Updated: 19/Sep/14 14:40
• Resolved: 28/Jun/14 14:40

Description

I get this NPE with the files of PDFBOX-1145, PDFBOX-1794, PDFBOX-2023 in 1.8 only:

java.lang.NullPointerException
at org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:210)
at org.apache.pdfbox.pdmodel.font.Type3StreamParser.createImage(Type3StreamParser.java:59)
at org.apache.pdfbox.pdmodel.font.PDType3Font.createImageIfNecessary(PDType3Font.java:80)
at org.apache.pdfbox.pdmodel.font.PDType3Font.drawString(PDType3Font.java:102)
at org.apache.pdfbox.pdfviewer.PageDrawer.processTextPosition(PageDrawer.java:256)
at org.apache.pdfbox.util.PDFStreamEngine.processEncodedText(PDFStreamEngine.java:499)
at org.apache.pdfbox.util.operator.ShowText.process(ShowText.java:45)
at org.apache.pdfbox.util.PDFStreamEngine.processOperator(PDFStreamEngine.java:557)
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.pdfviewer.PageDrawer.drawPage(PageDrawer.java:135)
at org.apache.pdfbox.pdmodel.PDPage.convertToImage(PDPage.java:801)
at org.apache.pdfbox.util.TestPDFToImage.doTestFile(TestPDFToImage.java:232)
at org.apache.pdfbox.util.TestPDFToImage.testRenderImage(TestPDFToImage.java:344)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:232)
at junit.framework.TestSuite.run(TestSuite.java:227)
at junit.textui.TestRunner.doRun(TestRunner.java:116)
at junit.textui.TestRunner.start(TestRunner.java:180)
at junit.textui.TestRunner.main(TestRunner.java:138)
at org.apache.pdfbox.util.TestPDFToImage.main(TestPDFToImage.java:394)

After fixing PDFStreamEngine.processStream() like this

        if (aPage == null)
        {
            graphicsState = new PDGraphicsState();
        }
        else
        {
            graphicsState = new PDGraphicsState(aPage.findCropBox());
        }

I get another NPE:

java.lang.NullPointerException
at org.apache.pdfbox.pdmodel.font.Type3StreamParser.createImage(Type3StreamParser.java:60)
at org.apache.pdfbox.pdmodel.font.PDType3Font.createImageIfNecessary(PDType3Font.java:80)
at org.apache.pdfbox.pdmodel.font.PDType3Font.drawString(PDType3Font.java:102)
at org.apache.pdfbox.pdfviewer.PageDrawer.processTextPosition(PageDrawer.java:256)
at org.apache.pdfbox.util.PDFStreamEngine.processEncodedText(PDFStreamEngine.java:506)
at org.apache.pdfbox.util.operator.ShowText.process(ShowText.java:45)
at org.apache.pdfbox.util.PDFStreamEngine.processOperator(PDFStreamEngine.java:564)
at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:275)
at org.apache.pdfbox.util.PDFStreamEngine.processSubStream(PDFStreamEngine.java:242)
at org.apache.pdfbox.util.PDFStreamEngine.processStream(PDFStreamEngine.java:222)
at org.apache.pdfbox.pdfviewer.PageDrawer.drawPage(PageDrawer.java:135)
at org.apache.pdfbox.pdmodel.PDPage.convertToImage(PDPage.java:801)
at org.apache.pdfbox.util.TestPDFToImage.doTestFile(TestPDFToImage.java:232)
at org.apache.pdfbox.util.TestPDFToImage.testRenderImage(TestPDFToImage.java:344)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:232)
at junit.framework.TestSuite.run(TestSuite.java:227)
at junit.textui.TestRunner.doRun(TestRunner.java:116)
at junit.textui.TestRunner.start(TestRunner.java:180)
at junit.textui.TestRunner.main(TestRunner.java:138)
at org.apache.pdfbox.util.TestPDFToImage.main(TestPDFToImage.java:394)