Here is my java code...
package mod.fieldrefdepend;
import mod.dummy.DummyClass;
public class ClassDependsOnReferenceInFieldDeclaration {
private Class c = DummyClass.class;
}
I am trying to find out If this class depends on class X where in this
case, class X = DummyClass. Below in the constantpool, I can see many
references to DummyClass, but I am not sure the best way to go about
finding this information. (I have this working in 5.0jdk, but not 1.4
for some reason). I have highlighted all references to DummyClass in
red in the constant pool that I print out below. Note I print the
constant itself and the type of constant that it is. What is the best
way to find out this class depends on DummyClass. My log with constant
pool and instruction byte code is below....thanks for any pointers here.
Here is the constant pool and byte code from my logs that I print out
class=mod.fieldrefdepend.ClassDependsOnReferenceInFieldDeclaration
const[1]=java.lang.Class.forName
(Ljava/lang/String;)Ljava/lang/Class;
inst=org.apache.bcel.classfile.ConstantMethodref
const[2]=java.lang.ClassNotFoundException
inst=org.apache.bcel.classfile.ConstantClass
const[3]=java.lang.NoClassDefFoundError
inst=org.apache.bcel.classfile.ConstantClass
const[4]=java.lang.ClassNotFoundException.getMessage
()Ljava/lang/String; inst=org.apache.bcel.classfile.ConstantMethodref
const[5]=java.lang.NoClassDefFoundError.<init>
(Ljava/lang/String;)V inst=org.apache.bcel.classfile.ConstantMethodref
const[6]=java.lang.Object.<init> ()V
inst=org.apache.bcel.classfile.ConstantMethodref
const[7]=mod.fieldrefdepend.ClassDependsOnReferenceInFieldDeclaration.cl
ass$mod$dummy$DummyClass Ljava/lang/Class;
const[8]="mod.dummy.DummyClass"
inst=org.apache.bcel.classfile.ConstantString
const[9]=mod.fieldrefdepend.ClassDependsOnReferenceInFieldDeclaration.cl
ass$ (Ljava/lang/String;)Ljava/lang/Class;
const[10]=mod.fieldrefdepend.ClassDependsOnReferenceInFieldDeclaration.c
Ljava/lang/Class; inst=org.apache.bcel.classfile.ConstantFieldref
const[11]=mod.fieldrefdepend.ClassDependsOnReferenceInFieldDeclaration
inst=org.apache.bcel.classfile.ConstantClass
const[12]=java.lang.Object
inst=org.apache.bcel.classfile.ConstantClass
const[13]=c inst=org.apache.bcel.classfile.ConstantUtf8
const[14]=Ljava/lang/Class;
inst=org.apache.bcel.classfile.ConstantUtf8
const[15]=class$mod$dummy$DummyClass
inst=org.apache.bcel.classfile.ConstantUtf8
const[16]=Synthetic inst=org.apache.bcel.classfile.ConstantUtf8
const[17]=<init> inst=org.apache.bcel.classfile.ConstantUtf8
const[18]=()V inst=org.apache.bcel.classfile.ConstantUtf8
const[19]=Code inst=org.apache.bcel.classfile.ConstantUtf8
const[20]=LineNumberTable
inst=org.apache.bcel.classfile.ConstantUtf8
const[21]=LocalVariableTable
inst=org.apache.bcel.classfile.ConstantUtf8
const[22]=this inst=org.apache.bcel.classfile.ConstantUtf8
const[23]=Lmod/fieldrefdepend/ClassDependsOnReferenceInFieldDeclaration;
inst=org.apache.bcel.classfile.ConstantUtf8
const[24]=class$ inst=org.apache.bcel.classfile.ConstantUtf8
const[25]=(Ljava/lang/String;)Ljava/lang/Class;
inst=org.apache.bcel.classfile.ConstantUtf8
const[26]=x1 inst=org.apache.bcel.classfile.ConstantUtf8
const[27]=Ljava/lang/ClassNotFoundException;
inst=org.apache.bcel.classfile.ConstantUtf8
const[28]=x0 inst=org.apache.bcel.classfile.ConstantUtf8
const[29]=Ljava/lang/String;
inst=org.apache.bcel.classfile.ConstantUtf8
const[30]=SourceFile inst=org.apache.bcel.classfile.ConstantUtf8
const[31]=ClassDependsOnReferenceInFieldDeclaration.java
inst=org.apache.bcel.classfile.ConstantUtf8
const[32]=java.lang.Class
inst=org.apache.bcel.classfile.ConstantClass
const[33]=forName (Ljava/lang/String;)Ljava/lang/Class;
inst=org.apache.bcel.classfile.ConstantNameAndType
const[34]=java/lang/ClassNotFoundException
inst=org.apache.bcel.classfile.ConstantUtf8
const[35]=java/lang/NoClassDefFoundError
inst=org.apache.bcel.classfile.ConstantUtf8
const[36]=getMessage ()Ljava/lang/String;
inst=org.apache.bcel.classfile.ConstantNameAndType
const[37]=<init> (Ljava/lang/String;)V
inst=org.apache.bcel.classfile.ConstantNameAndType
const[38]=<init> ()V
inst=org.apache.bcel.classfile.ConstantNameAndType
const[39]=class$mod$dummy$DummyClass Ljava/lang/Class;
inst=org.apache.bcel.classfile.ConstantNameAndType
const[40]=mod.dummy.DummyClass
inst=org.apache.bcel.classfile.ConstantUtf8
const[41]=class$ (Ljava/lang/String;)Ljava/lang/Class;
inst=org.apache.bcel.classfile.ConstantNameAndType
const[42]=c Ljava/lang/Class;
inst=org.apache.bcel.classfile.ConstantNameAndType
const[43]=mod/fieldrefdepend/ClassDependsOnReferenceInFieldDeclaration
inst=org.apache.bcel.classfile.ConstantUtf8
const[44]=java/lang/Object
inst=org.apache.bcel.classfile.ConstantUtf8
const[45]=java/lang/Class
inst=org.apache.bcel.classfile.ConstantUtf8
const[46]=forName inst=org.apache.bcel.classfile.ConstantUtf8
const[47]=getMessage inst=org.apache.bcel.classfile.ConstantUtf8
const[48]=()Ljava/lang/String;
inst=org.apache.bcel.classfile.ConstantUtf8
const[49]=(Ljava/lang/String;)V
inst=org.apache.bcel.classfile.ConstantUtf8
method=<init>
method ret type=void
instr=aload_0[42](1)
instr=invokespecial[183](3) 6
instr=aload_0[42](1)
instr=getstatic[178](3) 7
instr=ifnonnull[199](3) -> getstatic 7
instr=ldc[18](2) 8
instr=invokestatic[184](3) 9
instr=dup[89](1)
instr=putstatic[179](3) 7
instr=goto[167](3) -> putfield 10
instr=getstatic[178](3) 7
instr=putfield[181](3) 10
instr=return[177](1)
method=class$
method ret type=Class
method param[0]=String
instr=aload_0[42](1)
instr=invokestatic[184](3) 1
instr=areturn[176](1)
instr=astore_1[76](1)
instr=new[187](3) 3
instr=dup[89](1)
instr=aload_1[43](1)
instr=invokevirtual[182](3) 4
instr=invokespecial[183](3) 5
instr=athrow[191](1)
