Program: 58441
Project: 58441
Buggy source:
private boolean strip(ClassNode cn){
  boolean altered=false;
  if (cn.visibleAnnotations != null && cn.interfaces != null) {
    for (    AnnotationNode node : cn.visibleAnnotations) {
      if (node.desc.equals(strippableDesc)) {
        if (node.values != null) {
          List<Object> values=node.values;
          for (int i=0, e=values.size(); i < e; ) {
            Object k=values.get(i++);
            Object v=values.get(i++);
            if (k instanceof String && k.equals("String_Node_Str") && v instanceof String[]) {
              String[] value=(String[])v;
              for (int j=0, l=value.length; j < l; ++j) {
                String clazz=value[j].trim();
                String cz=clazz.replace('.','/');
                if (cn.interfaces.contains(cz))                 try {
                  if (!workingPath.contains(clazz)) {
                    Class.forName(clazz,false,this.getClass().getClassLoader());
                  }
                }
 catch (                Throwable _) {
                  cn.interfaces.remove(cz);
                  break;
                }
              }
            }
          }
        }
      }
    }
  }
  if (cn.methods != null) {
    Iterator<MethodNode> iter=cn.methods.iterator();
    while (iter.hasNext()) {
      MethodNode mn=iter.next();
      if (mn.visibleAnnotations != null)       for (      AnnotationNode node : mn.visibleAnnotations)       altered|=checkRemove(node,iter);
    }
  }
  if (cn.fields != null) {
    Iterator<FieldNode> iter=cn.fields.iterator();
    while (iter.hasNext()) {
      FieldNode fn=iter.next();
      if (fn.visibleAnnotations != null)       for (      AnnotationNode node : fn.visibleAnnotations)       altered|=checkRemove(node,iter);
    }
  }
  return altered;
}

Fixed version (ground truth):
private boolean strip(ClassNode cn){
  boolean altered=false;
  if (cn.visibleAnnotations != null) {
    for (    AnnotationNode node : cn.visibleAnnotations) {
      if (node.desc.equals(stripableDesc)) {
        if (node.values != null) {
          List<Object> values=node.values;
          for (int i=0, e=values.size(); i < e; ) {
            Object k=values.get(i++);
            Object v=values.get(i++);
            if ("String_Node_Str".equals(k) && v instanceof List && ((List<?>)v).size() > 0 && ((List<?>)v).get(0) instanceof String) {
              String[] value=((List<?>)v).toArray(new String[0]);
              for (int j=0, l=value.length; j < l; ++j) {
                String clazz=value[j].trim();
                String cz=clazz.replace('.','/');
                if (cn.interfaces.contains(cz))                 try {
                  if (!workingPath.contains(clazz)) {
                    Class.forName(clazz,false,this.getClass().getClassLoader());
                  }
                }
 catch (                Throwable _) {
                  cn.interfaces.remove(cz);
                  altered=true;
                }
              }
            }
          }
        }
      }
    }
  }
  if (cn.methods != null) {
    Iterator<MethodNode> iter=cn.methods.iterator();
    while (iter.hasNext()) {
      MethodNode mn=iter.next();
      if (mn.visibleAnnotations != null)       for (      AnnotationNode node : mn.visibleAnnotations)       if (checkRemove(node,iter)) {
        altered=true;
        break;
      }
    }
  }
  if (cn.fields != null) {
    Iterator<FieldNode> iter=cn.fields.iterator();
    while (iter.hasNext()) {
      FieldNode fn=iter.next();
      if (fn.visibleAnnotations != null) {
        for (        AnnotationNode node : fn.visibleAnnotations)         if (checkRemove(node,iter)) {
          altered=true;
          break;
        }
      }
    }
  }
  return altered;
}