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POTriying to generate Dex bytecode at Runtime
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copied!<p>I have tried to invoke DX Tool at Runtime. My main idea is to generate a Dexfile and then load into Android System dynamically. I have some mistakes but i think that it is possible to generate a dile directly. The following code try to generate a simple HelloWorld Bean with a constructor. Can someone help me?</p> <pre><code>public class HelloWorld{ private String message; public HelloWorld(){} public String getMessage(){ return message;} public void setMessage(String message){ this.message=message; } } </code></pre> <p>My sample code is the next:</p> <pre><code>import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStreamWriter; import java.io.OutputStream; import java.util.ArrayList; import com.android.dx.rop.code.BasicBlock; import com.android.dx.rop.code.BasicBlockList; import com.android.dx.rop.code.FillArrayDataInsn; import com.android.dx.rop.code.Insn; import com.android.dx.rop.code.InsnList; import com.android.dx.rop.code.LocalVariableInfo; import com.android.dx.rop.code.PlainInsn; import com.android.dx.rop.code.RegisterSpec; import com.android.dx.rop.code.RegisterSpecList; import com.android.dx.rop.code.Rop; import com.android.dx.rop.code.RopMethod; import com.android.dx.rop.code.SourcePosition; import com.android.dx.rop.cst.Constant; import com.android.dx.rop.cst.CstFieldRef; import com.android.dx.rop.cst.CstMethodRef; import com.android.dx.rop.cst.CstNat; import com.android.dx.rop.cst.CstType; import com.android.dx.rop.cst.CstUtf8; import com.android.dx.rop.type.StdTypeList; import com.android.dx.rop.type.Type; import com.android.dx.util.IntList; import com.android.dx.dex.code.BlockAddresses; import com.android.dx.dex.code.CatchBuilder; import com.android.dx.dex.code.CatchHandlerList; import com.android.dx.dex.code.CatchTable; import com.android.dx.dex.code.CstInsn; import com.android.dx.dex.code.DalvOps; import com.android.dx.dex.code.Dop; import com.android.dx.dex.code.InsnFormat; import com.android.dx.dex.code.SimpleInsn; import com.android.dx.dex.code.StdCatchBuilder; import com.android.dx.dex.code.OutputFinisher; import com.android.dx.dex.code.DalvCode; import com.android.dx.dex.code.form.Form10t; import com.android.dx.dex.code.form.Form10x; import com.android.dx.dex.code.form.Form11x; import com.android.dx.dex.code.form.Form12x; import com.android.dx.dex.code.form.Form22c; import com.android.dx.dex.code.form.Form22x; import com.android.dx.dex.code.form.Form35c; import com.android.dx.dex.file.ClassDefItem; import com.android.dx.dex.file.DexFile; import com.android.dx.dex.file.EncodedField; import com.android.dx.dex.file.EncodedMethod; public class Main { private static DexFile outputDex; /** * Prints the usage message. */ public void createDexFile() throws Exception{ CstType type=new CstType(Type.intern("Lmnt/sdcard/HolaMundo;")); outputDex=new DexFile(); OutputStream fileOutputStream=new FileOutputStream("classes.dex"); /***Class***/ ClassDefItem clazz=new ClassDefItem(type, 1, new CstType(Type.intern("Ljava/lang/Object;")), new StdTypeList(0), new CstUtf8("HolaMundo.java")); /***Fields***/ EncodedField field=new EncodedField(new CstFieldRef(type,new CstNat(new CstUtf8("message"),new CstUtf8("Ljava/lang/String;"))),2); clazz.addInstanceField(field); /***Methods***/ /***Constructor***/ CstMethodRef methodref=new CstMethodRef(type,new CstNat(new CstUtf8("<init>"),new CstUtf8("()V"))); /*Rop opcode1=new Rop(1,new Type("V", Type.BT_VOID),new StdTypeList(0),new StdTypeList(0),1,false,"nop"); Rop opcode2=new Rop(2,new Type("I",Type.BT_INT),new StdTypeList(Type.BT_INT),new StdTypeList(0),1,false,"move-int"); Rop opcode3=new Rop(2,new Type("J",Type.BT_LONG),new StdTypeList(Type.BT_LONG),new StdTypeList(0),1,false,"move-long"); Rop opcode4=new Rop(2,new Type("F",Type.BT_FLOAT),new StdTypeList(Type.BT_FLOAT),new StdTypeList(0),1,false,"move-float"); Rop opcode5=new Rop(2,new Type("D",Type.BT_DOUBLE),new StdTypeList(Type.BT_DOUBLE),new StdTypeList(0),1,false,"move-double"); Rop opcode6=new Rop(2,Type.intern("Ljava/lang/Object;"),new StdTypeList(Type.intern("Ljava/lang/Object;").getBasicType()),new StdTypeList(0),1,false,"move-object"); Rop opcode7=new Rop(2,new Type("<addr>", Type.BT_ADDR),new StdTypeList(Type.BT_ADDR),new StdTypeList(0),1,false,"move-return-address"); Rop opcode8=new Rop(3,new Type("I",Type.BT_INT),new StdTypeList(0),new StdTypeList(0),1,false,"move-param-int"); Rop opcode9=new Rop(3,new Type("J",Type.BT_LONG),new StdTypeList(0),new StdTypeList(0),1,false,"move-param-long"); Rop opcode10=new Rop(3,new Type("F",Type.BT_FLOAT),new StdTypeList(0),new StdTypeList(0),1,false,"move-param-float"); Rop opcode11=new Rop(3,new Type("D",Type.BT_DOUBLE),new StdTypeList(0),new StdTypeList(0),1,false,"move-param-double"); Rop opcode12=new Rop(3,Type.intern("Ljava/lang/Object;"),new StdTypeList(0),new StdTypeList(0),1,false,"move-param-object"); Rop opcode13=new Rop(5,new Type("I",Type.BT_INT),new StdTypeList(0),new StdTypeList(0),1,false,"const-int"); Rop opcode14=new Rop(5,new Type("J",Type.BT_LONG),new StdTypeList(0),new StdTypeList(0),1,false,"const-long"); Rop opcode15=new Rop(5,new Type("F",Type.BT_FLOAT),new StdTypeList(0),new StdTypeList(0),1,false,"const-float"); Rop opcode16=new Rop(5,new Type("D",Type.BT_DOUBLE),new StdTypeList(0),new StdTypeList(0),1,false,"const-double"); Rop opcode17=new Rop(5,Type.intern("Ljava/lang/Object;"),new StdTypeList(0),new StdTypeList(Type.intern("Ljava/lang/Error;").getBasicType()),6,false,"const-object"); Rop opcode18=new Rop(5,Type.intern("Ljava/lang/Object;"),new StdTypeList(0),new StdTypeList(0),1,false,"const-object-nothrow"); Rop opcode19=new Rop(6,new Type("V", Type.BT_VOID),new StdTypeList(0),new StdTypeList(0),3,false,"goto"); Rop opcode20=new Rop(7,new Type("V", Type.BT_VOID),new StdTypeList(Type.BT_INT),new StdTypeList(0),4,false,"if-eqz-int"); Rop opcode21=new Rop(8,new Type("V", Type.BT_VOID),new StdTypeList(Type.BT_INT),new StdTypeList(0),4,false,"if-nez-int"); Rop opcode22=new Rop(9,new Type("V", Type.BT_VOID),new StdTypeList(Type.BT_INT),new StdTypeList(0),4,false,"if-ltz-int"); Rop opcode23=new Rop(10,new Type("V", Type.BT_VOID),new StdTypeList(Type.BT_INT),new StdTypeList(0),4,false,"if-eqz-int"); Rop opcode24=new Rop(11,new Type("V", Type.BT_VOID),new StdTypeList(Type.BT_INT),new StdTypeList(0),4,false,"if-lez-int"); Rop opcode25=new Rop(12,new Type("V", Type.BT_VOID),new StdTypeList(Type.BT_INT),new StdTypeList(0),4,false,"if-gtz-int"); Rop opcode26=new Rop(7,new Type("V", Type.BT_VOID),new StdTypeList(Type.intern("Ljava/lang/Object;").getBasicType()),new StdTypeList(0),4,false,"if-nez-object"); Rop opcode27=new Rop(8,new Type("V", Type.BT_VOID),new StdTypeList(Type.intern("Ljava/lang/Object;").getBasicType()),new StdTypeList(0),4,false,"if-eqz-object"); Rop opcode28=new Rop(7,new Type("V", Type.BT_VOID),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),4,false,"if-eq-NTI"); Rop opcode29=new Rop(8,new Type("V", Type.BT_VOID),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),4,false,"if-ne-int"); Rop opcode30=new Rop(9,new Type("V", Type.BT_VOID),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),4,false,"if-lt-int"); Rop opcode31=new Rop(10,new Type("V", Type.BT_VOID),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),4,false,"if-ge-int"); Rop opcode32=new Rop(11,new Type("V", Type.BT_VOID),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),4,false,"if-le-int"); Rop opcode33=new Rop(12,new Type("V", Type.BT_VOID),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),4,false,"if-gt-int"); Rop opcode34=new Rop(7,new Type("V", Type.BT_VOID),StdTypeList.make(Type.intern("Ljava/lang/Object;"),Type.intern("Ljava/lang/Object;")),new StdTypeList(0),4,false,"if-eq-object"); Rop opcode35=new Rop(8,new Type("V", Type.BT_VOID),StdTypeList.make(Type.intern("Ljava/lang/Object;"),Type.intern("Ljava/lang/Object;")),new StdTypeList(0),4,false,"if-ne-object"); Rop opcode36=new Rop(13,new Type("V", Type.BT_VOID),new StdTypeList(Type.BT_INT),new StdTypeList(0),5,false,"switch"); Rop opcode37=new Rop(14,new Type("I", Type.BT_INT),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),1,false,"add-int"); Rop opcode38=new Rop(14,new Type("J", Type.BT_LONG),StdTypeList.make(new Type("J",Type.BT_LONG),new Type("J",Type.BT_LONG)),new StdTypeList(0),1,false,"add-long"); Rop opcode39=new Rop(14,new Type("F", Type.BT_FLOAT),StdTypeList.make(new Type("F",Type.BT_FLOAT),new Type("F",Type.BT_FLOAT)),new StdTypeList(0),1,false,"add-float"); Rop opcode40=new Rop(14,new Type("D", Type.BT_DOUBLE),StdTypeList.make(new Type("D",Type.BT_DOUBLE),new Type("D",Type.BT_DOUBLE)),new StdTypeList(0),1,false,"add-double"); Rop opcode41=new Rop(15,new Type("I", Type.BT_INT),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),1,false,"sub-int"); Rop opcode42=new Rop(15,new Type("J", Type.BT_LONG),StdTypeList.make(new Type("J",Type.BT_LONG),new Type("J",Type.BT_LONG)),new StdTypeList(0),1,false,"sub-long"); Rop opcode43=new Rop(15,new Type("F", Type.BT_FLOAT),StdTypeList.make(new Type("F",Type.BT_FLOAT),new Type("F",Type.BT_FLOAT)),new StdTypeList(0),1,false,"sub-float"); Rop opcode44=new Rop(15,new Type("D", Type.BT_DOUBLE),StdTypeList.make(new Type("D",Type.BT_DOUBLE),new Type("D",Type.BT_DOUBLE)),new StdTypeList(0),1,false,"sub-double"); Rop opcode45=new Rop(16,new Type("I", Type.BT_INT),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),1,false,"mul-int"); Rop opcode46=new Rop(16,new Type("J", Type.BT_LONG),StdTypeList.make(new Type("J",Type.BT_LONG),new Type("J",Type.BT_LONG)),new StdTypeList(0),1,false,"mul-long"); Rop opcode47=new Rop(16,new Type("F", Type.BT_FLOAT),StdTypeList.make(new Type("F",Type.BT_FLOAT),new Type("F",Type.BT_FLOAT)),new StdTypeList(0),1,false,"mul-float"); Rop opcode48=new Rop(16,new Type("D", Type.BT_DOUBLE),StdTypeList.make(new Type("D",Type.BT_DOUBLE),new Type("D",Type.BT_DOUBLE)),new StdTypeList(0),1,false,"mul-double"); Rop opcode49=new Rop(17,new Type("I", Type.BT_INT),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),StdTypeList.make(Type.intern("Ljava/lang/Error;"),Type.intern("Ljava/lang/ArithmeticException;")),6,false,"div-int"); Rop opcode50=new Rop(17,new Type("J", Type.BT_LONG),StdTypeList.make(new Type("J",Type.BT_LONG),new Type("J",Type.BT_LONG)),StdTypeList.make(Type.intern("Ljava/lang/Error;"),Type.intern("Ljava/lang/ArithmeticException;")),6,false,"div-long"); Rop opcode51=new Rop(17,new Type("F", Type.BT_FLOAT),StdTypeList.make(new Type("F",Type.BT_FLOAT),new Type("F",Type.BT_FLOAT)),new StdTypeList(0),1,false,"div-float"); Rop opcode52=new Rop(17,new Type("D", Type.BT_DOUBLE),StdTypeList.make(new Type("D",Type.BT_DOUBLE),new Type("D",Type.BT_DOUBLE)),new StdTypeList(0),1,false,"div-double"); Rop opcode53=new Rop(18,new Type("I", Type.BT_INT),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),StdTypeList.make(Type.intern("Ljava/lang/Error;"),Type.intern("Ljava/lang/ArithmeticException;")),6,false,"rem-int"); Rop opcode54=new Rop(18,new Type("J", Type.BT_LONG),StdTypeList.make(new Type("J",Type.BT_LONG),new Type("J",Type.BT_LONG)),StdTypeList.make(Type.intern("Ljava/lang/Error;"),Type.intern("Ljava/lang/ArithmeticException;")),6,false,"rem-long"); Rop opcode55=new Rop(18,new Type("F", Type.BT_FLOAT),StdTypeList.make(new Type("F",Type.BT_FLOAT),new Type("F",Type.BT_FLOAT)),new StdTypeList(0),1,false,"rem-float"); Rop opcode56=new Rop(18,new Type("D", Type.BT_DOUBLE),StdTypeList.make(new Type("D",Type.BT_DOUBLE),new Type("D",Type.BT_DOUBLE)),new StdTypeList(0),1,false,"rem-double"); Rop opcode57=new Rop(19,new Type("I", Type.BT_INT),new StdTypeList(Type.BT_INT),new StdTypeList(0),1,false,"neg-int"); Rop opcode58=new Rop(19,new Type("J", Type.BT_LONG),new StdTypeList(Type.BT_LONG),new StdTypeList(0),1,false,"neg-long"); Rop opcode59=new Rop(19,new Type("F", Type.BT_FLOAT),new StdTypeList(Type.BT_FLOAT),new StdTypeList(0),1,false,"neg-float"); Rop opcode60=new Rop(19,new Type("D", Type.BT_DOUBLE),new StdTypeList(Type.BT_DOUBLE),new StdTypeList(0),1,false,"neg-double"); Rop opcode61=new Rop(20,new Type("I", Type.BT_INT),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),1,false,"and-int"); Rop opcode62=new Rop(20,new Type("J", Type.BT_LONG),StdTypeList.make(new Type("J",Type.BT_LONG),new Type("J",Type.BT_LONG)),new StdTypeList(0),1,false,"and-long"); Rop opcode63=new Rop(21,new Type("I", Type.BT_INT),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),1,false,"or-int"); Rop opcode64=new Rop(21,new Type("J", Type.BT_LONG),StdTypeList.make(new Type("J",Type.BT_LONG),new Type("J",Type.BT_LONG)),new StdTypeList(0),1,false,"or-long"); Rop opcode65=new Rop(22,new Type("I", Type.BT_INT),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),1,false,"xor-int"); Rop opcode66=new Rop(22,new Type("J", Type.BT_LONG),StdTypeList.make(new Type("J",Type.BT_LONG),new Type("J",Type.BT_LONG)),new StdTypeList(0),1,false,"xor-long"); Rop opcode67=new Rop(23,new Type("I", Type.BT_INT),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),1,false,"shl-int"); Rop opcode68=new Rop(23,new Type("J", Type.BT_LONG),StdTypeList.make(new Type("J",Type.BT_LONG),new Type("I",Type.BT_INT)),new StdTypeList(0),1,false,"shl-long"); Rop opcode69=new Rop(24,new Type("I", Type.BT_INT),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),1,false,"shr-int"); Rop opcode70=new Rop(24,new Type("J", Type.BT_LONG),StdTypeList.make(new Type("J",Type.BT_LONG),new Type("I",Type.BT_INT)),new StdTypeList(0),1,false,"shr-long"); Rop opcode71=new Rop(25,new Type("I", Type.BT_INT),StdTypeList.make(new Type("I",Type.BT_INT),new Type("I",Type.BT_INT)),new StdTypeList(0),1,false,"ushr-int"); Rop opcode72=new Rop(25,new Type("J", Type.BT_LONG),StdTypeList.make(new Type("J",Type.BT_LONG),new Type("I",Type.BT_INT)),new StdTypeList(0),1,false,"ushr-long"); Rop opcode73=new Rop(26,new Type("I", Type.BT_INT),new StdTypeList(Type.BT_INT),new StdTypeList(0),1,false,"not-int"); Rop opcode74=new Rop(26,new Type("J", Type.BT_LONG),new StdTypeList(Type.BT_LONG),new StdTypeList(0),1,false,"not-long"); Rop opcode75=new Rop(14,new Type("I", Type.BT_INT),new StdTypeList(Type.BT_INT),new StdTypeList(0),1,false,"add-const-int"); Rop opcode76=new Rop(14,new Type("J", Type.BT_LONG),new StdTypeList(Type.BT_LONG),new StdTypeList(0),1,false,"add-const-long"); Rop opcode77=new Rop(14,new Type("F", Type.BT_FLOAT),new StdTypeList(Type.BT_FLOAT),new StdTypeList(0),1,false,"add-const-float"); Rop opcode78=new Rop(14,new Type("D", Type.BT_DOUBLE),new StdTypeList(Type.BT_DOUBLE),new StdTypeList(0),1,false,"add-const-double"); */ Rop opcodeMethod1=new Rop(3,Type.intern("Ljava/lang/Object;"),new StdTypeList(0),new StdTypeList(0),1,false,"move-param-object"); Rop opcodeMethod2=new Rop(6,new Type("V", Type.BT_VOID),new StdTypeList(0),new StdTypeList(0),3,false,"goto"); SourcePosition sourcePositionMethod1=new SourcePosition(new CstUtf8("HolaMundo.java"),1,1); SourcePosition sourcePositionMethod2=new SourcePosition(new CstUtf8("HolaMundo.java"),2,2); RegisterSpec registerSpecMethod1=RegisterSpec.make(0,new Type("NffffHolaMundo;",Type.BT_OBJECT,2147483647)); RegisterSpec registerSpecMethod2=null; RegisterSpec registerSpecMethod0=RegisterSpec.make(0,Type.intern("Ljava/lang/Object;")); RegisterSpecList registerSpecListMethod0=new RegisterSpecList(1); registerSpecListMethod0.set(0, registerSpecMethod1); RegisterSpecList registerSpecListMethod1=new RegisterSpecList(0); RegisterSpecList registerSpecListMethod2=new RegisterSpecList(0); PlainInsn insn1=new PlainInsn(opcodeMethod1,sourcePositionMethod1,registerSpecMethod1,registerSpecListMethod1); PlainInsn insn2=new PlainInsn(opcodeMethod2,sourcePositionMethod2,registerSpecMethod2,registerSpecListMethod2); Dop dopMethod0 = new Dop(DalvOps.INVOKE_DIRECT,DalvOps.INVOKE_DIRECT,Form35c.THE_ONE,false,"invoke-direct"); Dop dopMethod1 = new Dop(DalvOps.RETURN_VOID, DalvOps.RETURN_VOID, Form10x.THE_ONE, false, "return-void"); CstInsn simpleInsnMethod0=new CstInsn(dopMethod0,sourcePositionMethod1,registerSpecListMethod0,methodref); SimpleInsn simpleInsnMethod1=new SimpleInsn(dopMethod1,sourcePositionMethod2,registerSpecListMethod1); OutputFinisher outputFinisherMethod1=new OutputFinisher(21,2); outputFinisherMethod1.add(simpleInsnMethod0); outputFinisherMethod1.add(simpleInsnMethod1); /***DalvCode***/ InsnList insnList1=new InsnList(2); insnList1.set(0, insn1); insnList1.set(1, insn2); int primarySuccesor1=0; int label1=10; IntList intList1=new IntList(1); insnList1.setImmutable(); intList1.add(0); intList1.setImmutable(); BasicBlock basicBlock1=new BasicBlock(label1,insnList1,intList1,primarySuccesor1); InsnList insnList2=new InsnList(1); insnList2.set(0, insn2); int primarySuccesor2=11; int label2=0; IntList intList2=new IntList(11); BasicBlockList basicBlockList1=new BasicBlockList(1); basicBlockList1.set(0, basicBlock1); // Bueno!! int[] orderMethod1={14,12,0,13}; /**** Constructor ****/ int[] orderMethod1={10}; RopMethod ropMethod1=new RopMethod(basicBlockList1,10); BlockAddresses blockAddresses1=new BlockAddresses(ropMethod1); StdCatchBuilder stdCatchBuilder1=new StdCatchBuilder(ropMethod1,orderMethod1,blockAddresses1); DalvCode code1=new DalvCode(2,outputFinisherMethod1,stdCatchBuilder1); EncodedMethod method=new EncodedMethod(methodref,0x10001,code1,new StdTypeList(0)); clazz.addDirectMethod(method); /*** Method setMessage ***/ CstMethodRef methodref2=new CstMethodRef(type,new CstNat(new CstUtf8("setMessage"),new CstUtf8("(Ljava/lang/String;)V"))); Dop dopMethod2=new Dop(DalvOps.IPUT_OBJECT,DalvOps.IPUT_OBJECT,Form22c.THE_ONE,false,"iput-object"); Dop dopMethod3 = new Dop(DalvOps.RETURN_VOID,DalvOps.RETURN_VOID,Form10x.THE_ONE,false,"return-void"); SourcePosition sourcePositionMethod3=new SourcePosition(new CstUtf8("HolaMundo.java"),2,6); SourcePosition sourcePositionMethod4=new SourcePosition(new CstUtf8("HolaMundo.java"),5,7); RegisterSpec registerSpecMethod4=RegisterSpec.make(0,Type.intern("Ljava/lang/String;")); RegisterSpec registerSpecMethod3=RegisterSpec.make(1, Type.intern("LHolaMundo;")); RegisterSpecList registerSpecListMethod3=new RegisterSpecList(2); RegisterSpecList registerSpecListMethod4=new RegisterSpecList(0); registerSpecListMethod3.set(0,registerSpecMethod3); registerSpecListMethod3.set(1,registerSpecMethod4); CstFieldRef cstFieldRef1=new CstFieldRef(type,new CstNat(new CstUtf8("message"),new CstUtf8("Ljava/lang/String;"))); CstInsn simpleInsnMethod2=new CstInsn(dopMethod2,sourcePositionMethod3,registerSpecListMethod3,cstFieldRef1); SimpleInsn simpleInsnMethod3 = new SimpleInsn(dopMethod3,sourcePositionMethod4, registerSpecListMethod4); OutputFinisher outputFinisherMethod2=new OutputFinisher(22,2); outputFinisherMethod2.add(simpleInsnMethod2); outputFinisherMethod2.add(simpleInsnMethod3); int[] orderMethod2={10}; RopMethod ropMethod2=new RopMethod(basicBlockList1,10); BlockAddresses blockAddresses2=new BlockAddresses(ropMethod2); StdCatchBuilder stdCatchBuilder2=new StdCatchBuilder(ropMethod2,orderMethod2,blockAddresses2); DalvCode code2=new DalvCode(2,outputFinisherMethod2,stdCatchBuilder2); EncodedMethod method2=new EncodedMethod(methodref2,1,code2,new StdTypeList(0)); clazz.addVirtualMethod(method2); /*** Method getMessage ***/ CstMethodRef methodref3=new CstMethodRef(type,new CstNat(new CstUtf8("getMessage"),new CstUtf8("()Ljava/lang/String;"))); Dop dopMethod4 = new Dop(DalvOps.IGET_OBJECT, DalvOps.IGET_OBJECT, Form22c.THE_ONE, true, "iget-object"); Dop dopMethod5 = new Dop(DalvOps.RETURN_OBJECT,DalvOps.RETURN_OBJECT,Form11x.THE_ONE,false,"return-object"); RegisterSpec registerSpecMethod5=RegisterSpec.make(1, Type.intern("LHolaMundo;")); RegisterSpec registerSpecMethod6=RegisterSpec.make(0,Type.intern("Ljava/lang/String;")); SourcePosition sourcePositionMethod5=new SourcePosition(new CstUtf8("HolaMundo.java"),2,8); SourcePosition sourcePositionMethod6=new SourcePosition(new CstUtf8("HolaMundo.java"),5,9); RegisterSpecList registerSpecListMethod5=new RegisterSpecList(2); registerSpecListMethod5.set(0, registerSpecMethod5); registerSpecListMethod5.set(1,registerSpecMethod6); RegisterSpecList registerSpecListMethod6=new RegisterSpecList(1); registerSpecListMethod6.set(0, registerSpecMethod6); CstFieldRef cstFieldRef2=new CstFieldRef(type,new CstNat(new CstUtf8("message"),new CstUtf8("Ljava/lang/String;"))); CstInsn simpleInsnMethod4=new CstInsn(dopMethod4,sourcePositionMethod5,registerSpecListMethod5,cstFieldRef2); SimpleInsn simpleInsnMethod5=new SimpleInsn(dopMethod5,sourcePositionMethod6,registerSpecListMethod6); OutputFinisher outputFinisherMethod3=new OutputFinisher(22,2); outputFinisherMethod3.add(simpleInsnMethod4); outputFinisherMethod3.add(simpleInsnMethod5); int[] orderMethod3={10}; RopMethod ropMethod3=new RopMethod(basicBlockList1,10); BlockAddresses blockAddresses3=new BlockAddresses(ropMethod3); StdCatchBuilder stdCatchBuilder3=new StdCatchBuilder(ropMethod3,orderMethod3,blockAddresses3); DalvCode code3=new DalvCode(2,outputFinisherMethod3,stdCatchBuilder3); EncodedMethod method3=new EncodedMethod(methodref3,1,code3,new StdTypeList(0)); clazz.addVirtualMethod(method3); outputDex.add(clazz); outputDex.writeTo(fileOutputStream, null, false); fileOutputStream.flush(); fileOutputStream.close(); InputStream is = new FileInputStream("mnt/sdcard/classes.dex"); int len; int size = 1024; byte[] buf; if (is instanceof ByteArrayInputStream) { size = is.available(); buf = new byte[size]; len = is.read(buf, 0, size); } else { ByteArrayOutputStream bos = new ByteArrayOutputStream(); buf = new byte[size]; while ((len = is.read(buf, 0, size)) != -1) bos.write(buf, 0, len); buf = bos.toByteArray(); } System.out.println(System.getProperty("user.dir")); System.out.println("buf "+buf.toString()); com.android.dx.command.dexer.Main m=new com.android.dx.command.dexer.Main(); m.createJar("mnt/sdcard/HelloWorld.jar", buf); System.out.println("Yeahhhhh"); // ClassDefIt } /** * Returns a copy of the given args array, but without the indicated * element. * * @param orig non-null; original array * @param n which element to omit * @return non-null; new array */ private static String[] without(String[] orig, int n) { int len = orig.length - 1; String[] newa = new String[len]; System.arraycopy(orig, 0, newa, 0, n); System.arraycopy(orig, n + 1, newa, n, len - n); return newa; } public static void main(String[] args){ String[] args2={"--dex","--output=HolaMundo.jar","HolaMundo.class"}; Main m=new Main(); try{ m.createDexFile(); }catch(Exception e){System.out.println(e.getMessage());} } } </code></pre>

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