Created
March 29, 2017 23:15
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| import org.apache.bcel.Repository; | |
| import org.apache.bcel.classfile.Constant; | |
| import org.apache.bcel.classfile.ConstantClass; | |
| import org.apache.bcel.classfile.ConstantPool; | |
| import org.apache.bcel.classfile.JavaClass; | |
| /** | |
| * Prototype code to walk the graph of referenced classes, for use hunting down dead code. | |
| */ | |
| public class Analyzer { | |
| public static void main(String[] args) throws Exception { | |
| JavaClass clazz = Repository.lookupClass("Foo"); | |
| Analyzer analyzer = new Analyzer(); | |
| analyzer.traverse(clazz); | |
| } | |
| public void traverse(JavaClass node) throws Exception { | |
| ConstantPool pool = node.getConstantPool(); | |
| for (Constant constant : pool.getConstantPool()) { | |
| if (constant instanceof ConstantClass) { | |
| String className = pool.constantToString(constant); | |
| if (className != node.getClassName() && !className.startsWith("java")) { | |
| System.out.println(className); | |
| traverse(Repository.lookupClass(className)); | |
| } | |
| } | |
| } | |
| } | |
| } |
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