[BUG]BaseWzElement中，children 属性作为一个map对象，使用了xml中节点的name作为key，但是部分节点中有多个名称相同的节点，导致wzData.load(),初始化子节点时错误

[haojiumeizhaoniliaotian]

Describe the bug

(简洁清楚地描述 BUG 是什么)

• 发现异常的【堆栈日志】
  ava.lang.IllegalStateException: Duplicate key com.github.mrzhqiang.maplestory.wz.element.VectorElement@6440112d

  at java.util.stream.Collectors.lambda$throwingMerger$0(Collectors.java:133)
  at java.util.HashMap.merge(HashMap.java:1254)
  at java.util.stream.Collectors.lambda$toMap$58(Collectors.java:1320)
  at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169)
  at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
  at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
  at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
  at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
  at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
  at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
  at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
  at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
  at com.github.mrzhqiang.maplestory.wz.element.BaseWzElement.childrenOf(BaseWzElement.java:149)
  at com.github.mrzhqiang.maplestory.wz.element.BaseWzElement.(BaseWzElement.java:61)
  at com.github.mrzhqiang.maplestory.wz.element.ExtendedElement.(ExtendedElement.java:19)
  at com.github.mrzhqiang.maplestory.wz.element.ImgdirElement.convertChildren(ImgdirElement.java:70)
  at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
  at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
  at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
  at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
  at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
  at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
  at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
  at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
  at com.github.mrzhqiang.maplestory.wz.element.BaseWzElement.childrenOf(BaseWzElement.java:149)
  at com.github.mrzhqiang.maplestory.wz.element.BaseWzElement.(BaseWzElement.java:61)
  at com.github.mrzhqiang.maplestory.wz.element.ImgdirElement.(ImgdirElement.java:43)
  at com.github.mrzhqiang.maplestory.wz.element.CanvasElement.convertChildren(CanvasElement.java:40)
  at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
  at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
  at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
  at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
  at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
  at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
  at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
  at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
  at com.github.mrzhqiang.maplestory.wz.element.BaseWzElement.childrenOf(BaseWzElement.java:149)
  at com.github.mrzhqiang.maplestory.wz.element.BaseWzElement.(BaseWzElement.java:61)
  at com.github.mrzhqiang.maplestory.wz.element.CanvasElement.(CanvasElement.java:24)
  at com.github.mrzhqiang.maplestory.wz.element.ImgdirElement.convertChildren(ImgdirElement.java:58)
  at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
  at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
  at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
  at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
  at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
  at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
  at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
  at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
  at com.github.mrzhqiang.maplestory.wz.element.BaseWzElement.childrenOf(BaseWzElement.java:149)
  at com.github.mrzhqiang.maplestory.wz.element.BaseWzElement.(BaseWzElement.java:61)
  at com.github.mrzhqiang.maplestory.wz.element.ImgdirElement.(ImgdirElement.java:43)
  at com.github.mrzhqiang.maplestory.wz.element.ImgdirElement.convertChildren(ImgdirElement.java:50)
  at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
  at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
  at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
  at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
  at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
  at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
  at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
  at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
  at com.github.mrzhqiang.maplestory.wz.element.BaseWzElement.childrenOf(BaseWzElement.java:149)
  at com.github.mrzhqiang.maplestory.wz.element.BaseWzElement.(BaseWzElement.java:61)
  at com.github.mrzhqiang.maplestory.wz.element.ImgdirElement.(ImgdirElement.java:39)
  at com.github.mrzhqiang.maplestory.wz.element.ImgdirElement.of(ImgdirElement.java:35)
  at com.github.mrzhqiang.maplestory.wz.WzFile.(WzFile.java:80)
  at com.github.mrzhqiang.maplestory.wz.WzDirectory.attemptParse(WzDirectory.java:132)
  at java.util.Iterator.forEachRemaining(Iterator.java:116)
  at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
  at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
  at com.github.mrzhqiang.maplestory.wz.WzDirectory.parse(WzDirectory.java:117)
  at com.github.mrzhqiang.maplestory.wz.WzDirectory.attemptParse(WzDirectory.java:128)
  at java.util.Iterator.forEachRemaining(Iterator.java:116)
  at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
  at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
  at com.github.mrzhqiang.maplestory.wz.WzDirectory.parse(WzDirectory.java:117)
  at com.github.mrzhqiang.maplestory.wz.WzData.load(WzData.java:46)

• 出现问题的【屏幕截图】

• 可以复现的【详细步骤】

• 你所猜测的【关键因素】

• 其他相关的【文字描述】

Expected behavior

(简洁清楚地描述期望的行为)

1. 正常情况下，应该/不应该 发生的行为
2. 特殊情况下，应该/不应该 发生的行为

(Optional) About information

(【可选的】相关信息)

• OS version: Windows 10 10.0
• Java: Oracle JDK 1.8.0_301
• DB: MySQL 5.7.30-log
• Branchs Tags or Commit Revision:
  • main
  • develop
  • release-[x.x]
  • tag 1.0
  • revision 1398406
• Project version: 1.0-SNAPSHOT
• Your customize: other information

[haojiumeizhaoniliaotian]

目前时将 children对象调整成了List集合， 对应获取节点的方法，目前是 findFirst，不清楚是否会有某个name查询出多个结果集的需求。

[mrzhqiang]

目前时将 children对象调整成了List集合， 对应获取节点的方法，目前是 findFirst，不清楚是否会有某个name查询出多个结果集的需求。

肯定会有的，你可以看看相关的 main 测试类或者单元测试类。