Có thể gọi chức năng mở rộng Java từ Xalan trên Android không?

Question

docx4j sử dụng Xalan để chuyển đổi docx thành HTML và dựa chủ yếu vào các tiện ích mở rộng Xalan Java để thực hiện công việc.

Nhưng tiện ích mở rộng Xalan không hoạt động đối với tôi trên Android (hoạt động với 4.0.3). LogCat nói:

05-14 15:38:02.840: I/dalvikvm(7249): DexOpt: illegal method access (call Lorg/apache/xalan/extensions/ExtensionHandler;.getClassForName (Ljava/lang/String;)Ljava/lang/Class; from Lorg/apache/xalan/extensions/ExtensionHandlerJavaPackage;) 
05-14 15:38:02.840: I/dalvikvm(7249): Could not find method org.apache.xalan.extensions.ExtensionHandler.getClassForName, referenced from method org.apache.xalan.extensions.ExtensionHandlerJavaPackage.callFunction 
05-14 15:38:02.840: W/dalvikvm(7249): VFY: unable to resolve static method 21489: Lorg/apache/xalan/extensions/ExtensionHandler;.getClassForName (Ljava/lang/String;)Ljava/lang/Class; 
05-14 15:38:02.840: D/dalvikvm(7249): VFY: replacing opcode 0x71 at 0x0096 
05-14 15:38:02.840: I/dalvikvm(7249): Could not find method org.apache.xalan.transformer.TransformerImpl.getDebug, referenced from method org.apache.xalan.extensions.ExtensionHandlerJavaPackage.callFunction 
05-14 15:38:02.840: W/dalvikvm(7249): VFY: unable to resolve virtual method 23717: Lorg/apache/xalan/transformer/TransformerImpl;.getDebug()Z 
05-14 15:38:02.840: D/dalvikvm(7249): VFY: replacing opcode 0x74 at 0x0133 
05-14 15:38:02.840: I/dalvikvm(7249): DexOpt: illegal method access (call Lorg/apache/xalan/extensions/ExtensionHandler;.getClassForName (Ljava/lang/String;)Ljava/lang/Class; from Lorg/apache/xalan/extensions/ExtensionHandlerJavaPackage;) 
05-14 15:38:02.840: I/dalvikvm(7249): Could not find method org.apache.xalan.extensions.ExtensionHandler.getClassForName, referenced from method org.apache.xalan.extensions.ExtensionHandlerJavaPackage.callFunction 
05-14 15:38:02.840: W/dalvikvm(7249): VFY: unable to resolve static method 21489: Lorg/apache/xalan/extensions/ExtensionHandler;.getClassForName (Ljava/lang/String;)Ljava/lang/Class; 
05-14 15:38:02.840: D/dalvikvm(7249): VFY: replacing opcode 0x71 at 0x0189 
05-14 15:38:02.840: I/dalvikvm(7249): Could not find method org.apache.xalan.transformer.TransformerImpl.getDebug, referenced from method org.apache.xalan.extensions.ExtensionHandlerJavaPackage.callFunction 
05-14 15:38:02.840: W/dalvikvm(7249): VFY: unable to resolve virtual method 23717: Lorg/apache/xalan/transformer/TransformerImpl;.getDebug()Z 
05-14 15:38:02.840: D/dalvikvm(7249): VFY: replacing opcode 0x74 at 0x028e 
05-14 15:38:02.840: I/dalvikvm(7249): DexOpt: illegal method access (call Lorg/apache/xalan/extensions/ExtensionHandler;.getClassForName (Ljava/lang/String;)Ljava/lang/Class; from Lorg/apache/xalan/extensions/ExtensionHandlerJavaPackage;) 
05-14 15:38:02.840: I/dalvikvm(7249): Could not find method org.apache.xalan.extensions.ExtensionHandler.getClassForName, referenced from method org.apache.xalan.extensions.ExtensionHandlerJavaPackage.isElementAvailable 
05-14 15:38:02.840: W/dalvikvm(7249): VFY: unable to resolve static method 21489: Lorg/apache/xalan/extensions/ExtensionHandler;.getClassForName (Ljava/lang/String;)Ljava/lang/Class; 
05-14 15:38:02.840: D/dalvikvm(7249): VFY: replacing opcode 0x71 at 0x0022 
05-14 15:38:02.840: I/dalvikvm(7249): DexOpt: illegal method access (call Lorg/apache/xalan/extensions/ExtensionHandler;.getClassForName (Ljava/lang/String;)Ljava/lang/Class; from Lorg/apache/xalan/extensions/ExtensionHandlerJavaPackage;) 
05-14 15:38:02.840: I/dalvikvm(7249): Could not find method org.apache.xalan.extensions.ExtensionHandler.getClassForName, referenced from method org.apache.xalan.extensions.ExtensionHandlerJavaPackage.isFunctionAvailable 
05-14 15:38:02.840: W/dalvikvm(7249): VFY: unable to resolve static method 21489: Lorg/apache/xalan/extensions/ExtensionHandler;.getClassForName (Ljava/lang/String;)Ljava/lang/Class; 
05-14 15:38:02.840: D/dalvikvm(7249): VFY: replacing opcode 0x71 at 0x0021 
05-14 15:38:02.840: I/dalvikvm(7249): DexOpt: illegal method access (call Lorg/apache/xalan/extensions/ExtensionHandler;.getClassForName (Ljava/lang/String;)Ljava/lang/Class; from Lorg/apache/xalan/extensions/ExtensionHandlerJavaPackage;) 
05-14 15:38:02.840: I/dalvikvm(7249): Could not find method org.apache.xalan.extensions.ExtensionHandler.getClassForName, referenced from method org.apache.xalan.extensions.ExtensionHandlerJavaPackage.processElement 
05-14 15:38:02.840: W/dalvikvm(7249): VFY: unable to resolve static method 21489: Lorg/apache/xalan/extensions/ExtensionHandler;.getClassForName (Ljava/lang/String;)Ljava/lang/Class; 
05-14 15:38:02.840: D/dalvikvm(7249): VFY: replacing opcode 0x71 at 0x004c 
05-14 15:38:02.840: I/dalvikvm(7249): Could not find method org.apache.xalan.transformer.TransformerImpl.getDebug, referenced from method org.apache.xalan.extensions.ExtensionHandlerJavaPackage.processElement 
05-14 15:38:02.840: W/dalvikvm(7249): VFY: unable to resolve virtual method 23717: Lorg/apache/xalan/transformer/TransformerImpl;.getDebug()Z 
05-14 15:38:02.840: D/dalvikvm(7249): VFY: replacing opcode 0x74 at 0x0091 
05-14 15:38:02.860: D/AndroidRuntime(7249): Shutting down VM 
05-14 15:38:02.860: W/dalvikvm(7249): threadid=1: thread exiting with uncaught exception (group=0x40a531f8) 
05-14 15:38:02.860: E/AndroidRuntime(7249): FATAL EXCEPTION: main 
05-14 15:38:02.860: E/AndroidRuntime(7249): java.lang.IllegalAccessError: tried to access method org.apache.xalan.extensions.ExtensionHandler.getClassForName:(Ljava/lang/String;Ljava/util/Vector;Ljava/lang/Object;Lorg/apache/xalan/extensions/ExpressionContext;)Ljava/lang/Object; from class org.apache.xalan.extensions.ExtensionHandlerJavaPackage 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.extensions.ExtensionHandlerJavaPackage.callFunction(ExtensionHandlerJavaPackage.java:315) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.extensions.ExtensionHandlerJavaPackage.callFunction(ExtensionHandlerJavaPackage.java:440) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.extensions.ExtensionsTable.extFunction(ExtensionsTable.java:222) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.transformer.TransformerImpl.extFunction(TransformerImpl.java:417) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xpath.functions.FuncExtFunction.execute(FuncExtFunction.java:208) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xpath.XPath.execute(XPath.java:337) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.templates.ElemVariable.getValue(ElemVariable.java:274) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.templates.ElemVariable.execute(ElemVariable.java:245) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.templates.ElemApplyTemplates.transformSelectedNodes(ElemApplyTemplates.java:370) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.templates.ElemApplyTemplates.execute(ElemApplyTemplates.java:175) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2223) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(TransformerImpl.java:2096) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1228) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:614) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1145) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1123) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.docx4j.XmlUtils.transform(XmlUtils.java:841) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.docx4j.XmlUtils.transform(XmlUtils.java:734) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at org.docx4j.convert.out.html.HtmlExporterNG2.html(HtmlExporterNG2.java:269) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at com.example.HelloAndroid.HelloAndroid.onCreate(HelloAndroid.java:58) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at android.app.Activity.performCreate(Activity.java:4465) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at android.app.ActivityThread.access$600(ActivityThread.java:123) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at android.os.Handler.dispatchMessage(Handler.java:99) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at android.os.Looper.loop(Looper.java:137) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at android.app.ActivityThread.main(ActivityThread.java:4424) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at java.lang.reflect.Method.invokeNative(Native Method) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at java.lang.reflect.Method.invoke(Method.java:511) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 
05-14 15:38:02.860: E/AndroidRuntime(7249): at dalvik.system.NativeStart.main(Native Method) 

Bất kỳ suy nghĩ nào về vấn đề chính xác và cách giải quyết?

Answer 1

Android bao gồm bản sao riêng của một số thư viện Apache XML. Nếu bạn muốn bao gồm các phiên bản của riêng bạn trong ứng dụng của bạn, đặt cược tốt nhất của bạn là đóng gói lại bằng cách sử dụng instructions here.