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我試圖使用xjc
從OpenGL API Registry的RelaxNG模式生成JAXB綁定。這是投擲NullPointerException
:爲什麼xjc在這個RelaxNG精簡模式上窒息?
$ xjc -cp jaxb-extra-osgi-2.2.7.jar -relaxng-compact registry.rnc
parsing a schema...
Exception in thread "main" java.lang.NullPointerException
at com.sun.tools.internal.xjc.reader.Ring.get(Ring.java:82)
at com.sun.tools.internal.xjc.model.CPropertyInfo.<init>(CPropertyInfo.java:110)
at com.sun.tools.internal.xjc.model.CSingleTypePropertyInfo.<init>(CSingleTypePropertyInfo.java:57)
at com.sun.tools.internal.xjc.model.CAttributePropertyInfo.<init>(CAttributePropertyInfo.java:58)
at com.sun.tools.internal.xjc.reader.relaxng.ContentModelBinder.onAttribute(ContentModelBinder.java:119)
at com.sun.tools.internal.xjc.reader.relaxng.ContentModelBinder.onAttribute(ContentModelBinder.java:55)
at com.sun.xml.internal.rngom.digested.DAttributePattern.accept(DAttributePattern.java:58)
at com.sun.xml.internal.rngom.digested.DPatternWalker.onContainer(DPatternWalker.java:66)
at com.sun.xml.internal.rngom.digested.DPatternWalker.onGroup(DPatternWalker.java:87)
at com.sun.xml.internal.rngom.digested.DPatternWalker.onGroup(DPatternWalker.java:51)
at com.sun.xml.internal.rngom.digested.DGroupPattern.accept(DGroupPattern.java:59)
at com.sun.tools.internal.xjc.reader.relaxng.RELAXNGCompiler.bindContentModel(RELAXNGCompiler.java:150)
at com.sun.tools.internal.xjc.reader.relaxng.RELAXNGCompiler.compile(RELAXNGCompiler.java:143)
at com.sun.tools.internal.xjc.reader.relaxng.RELAXNGCompiler.build(RELAXNGCompiler.java:108)
at com.sun.tools.internal.xjc.ModelLoader.loadRELAXNG(ModelLoader.java:592)
at com.sun.tools.internal.xjc.ModelLoader.loadRELAXNGCompact(ModelLoader.java:580)
at com.sun.tools.internal.xjc.ModelLoader.load(ModelLoader.java:151)
at com.sun.tools.internal.xjc.ModelLoader.load(ModelLoader.java:104)
at com.sun.tools.internal.xjc.Driver.run(Driver.java:318)
at com.sun.tools.internal.xjc.Driver.run(Driver.java:185)
at com.sun.tools.internal.xjc.Driver._main(Driver.java:108)
at com.sun.tools.internal.xjc.Driver.access$000(Driver.java:65)
at com.sun.tools.internal.xjc.Driver$1.run(Driver.java:88)
從我的類路徑中還有其他東西丟失?
我知道RelaxNG支持是實驗性的,所以也許它只是壞了。至於解決方法,我轉換架構XSD使用莊:
$ java -jar trang.jar -I rnc -O xsd registry.rnc registry.xsd
記者甚至包括了修復它的代碼,並且在一年中仍然沒有采取行動。真棒! –