Jochen Kemnade created FOP-2745:
-----------------------------------

             Summary: Multi-threaded initialization fails
                 Key: FOP-2745
                 URL: https://issues.apache.org/jira/browse/FOP-2745
             Project: FOP
          Issue Type: Bug
    Affects Versions: 2.2
            Reporter: Jochen Kemnade


When multiple thread initialize FOP, some of them are likely to throw a 
{{NullPointerException}} or {{ConcurrentModificationException}}.
{noformat}
java.lang.NullPointerException: null
        at java.awt.color.ICC_Profile.intFromBigEndian(ICC_Profile.java:1782)
        at java.awt.color.ICC_Profile.getNumComponents(ICC_Profile.java:1474)
        at 
org.apache.fop.pdf.PDFICCBasedColorSpace.<init>(PDFICCBasedColorSpace.java:49)
        at 
org.apache.fop.pdf.PDFFactory.makeICCBasedColorSpace(PDFFactory.java:1453)
        at 
org.apache.fop.pdf.PDFICCBasedColorSpace.setupsRGBAsDefaultRGBColorSpace(PDFICCBasedColorSpace.java:116)
        at 
org.apache.fop.render.pdf.PDFRenderingUtil.addsRGBColorSpace(PDFRenderingUtil.java:187)
        at 
org.apache.fop.render.pdf.PDFRenderingUtil.setupPDFDocument(PDFRenderingUtil.java:604)
        at 
org.apache.fop.render.pdf.PDFDocumentHandler.startDocument(PDFDocumentHandler.java:159)
        at 
org.apache.fop.render.intermediate.util.IFDocumentHandlerProxy.startDocument(IFDocumentHandlerProxy.java:105)
        at 
org.apache.fop.render.intermediate.IFRenderer.startRenderer(IFRenderer.java:263)
        at org.apache.fop.area.RenderPagesModel.<init>(RenderPagesModel.java:81)
        at 
org.apache.fop.area.AreaTreeHandler.setupModel(AreaTreeHandler.java:135)
        at org.apache.fop.area.AreaTreeHandler.<init>(AreaTreeHandler.java:105)
        at 
org.apache.fop.render.RendererFactory.createFOEventHandler(RendererFactory.java:363)
        at org.apache.fop.fo.FOTreeBuilder.<init>(FOTreeBuilder.java:107)
        at org.apache.fop.apps.Fop.createDefaultHandler(Fop.java:104)
        at org.apache.fop.apps.Fop.<init>(Fop.java:78)
        at org.apache.fop.apps.FOUserAgent.newFop(FOUserAgent.java:182)
{noformat}
or
{noformat}
java.util.ConcurrentModificationException: null
        at java.util.Vector$Itr.checkForComodification(Vector.java:1184)
        at java.util.Vector$Itr.next(Vector.java:1137)
        at 
sun.java2d.cmm.ProfileDeferralMgr.activateProfiles(ProfileDeferralMgr.java:93)
        at java.awt.color.ICC_Profile.getData(ICC_Profile.java:1359)
        at 
org.apache.xmlgraphics.java2d.color.profile.ColorProfileUtil.getICCProfileDescription(ColorProfileUtil.java:46)
        at org.apache.fop.pdf.PDFResources.addColorSpace(PDFResources.java:160)
        at 
org.apache.fop.pdf.PDFFactory.makeICCBasedColorSpace(PDFFactory.java:1460)
        at 
org.apache.fop.pdf.PDFICCBasedColorSpace.setupsRGBAsDefaultRGBColorSpace(PDFICCBasedColorSpace.java:116)
        at 
org.apache.fop.render.pdf.PDFRenderingUtil.addsRGBColorSpace(PDFRenderingUtil.java:187)
        at 
org.apache.fop.render.pdf.PDFRenderingUtil.setupPDFDocument(PDFRenderingUtil.java:604)
        at 
org.apache.fop.render.pdf.PDFDocumentHandler.startDocument(PDFDocumentHandler.java:159)
        at 
org.apache.fop.render.intermediate.util.IFDocumentHandlerProxy.startDocument(IFDocumentHandlerProxy.java:105)
        at 
org.apache.fop.render.intermediate.IFRenderer.startRenderer(IFRenderer.java:263)
        at org.apache.fop.area.RenderPagesModel.<init>(RenderPagesModel.java:81)
        at 
org.apache.fop.area.AreaTreeHandler.setupModel(AreaTreeHandler.java:135)
        at org.apache.fop.area.AreaTreeHandler.<init>(AreaTreeHandler.java:105)
        at 
org.apache.fop.render.RendererFactory.createFOEventHandler(RendererFactory.java:363)
        at org.apache.fop.fo.FOTreeBuilder.<init>(FOTreeBuilder.java:107)
        at org.apache.fop.apps.Fop.createDefaultHandler(Fop.java:104)
        at org.apache.fop.apps.Fop.<init>(Fop.java:78)
        at org.apache.fop.apps.FOUserAgent.newFop(FOUserAgent.java:182)
{noformat}
The underlying is https://bugs.openjdk.java.net/browse/JDK-8058973.



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