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public static void main(String[] args) throws Exception {
SimpleTreeNode rootNode = new SimpleTreeNode("I'm the root!");
rootNode.addChild(new SimpleTreeNode("I'm a child..."));
rootNode.addChild(new SimpleTreeNode("I'm an other child..."));
new TraditionalTreePrinter().print(new BorderTreeNodeDecorator(rootNode));
}
Throws:
Exception in thread "main" java.lang.NullPointerException
at org.apache.doris.common.treeprinter.TraditionalTreePrinter$DefaultAligner.alignChildren(TraditionalTreePrinter.java:266)
at org.apache.doris.common.treeprinter.TraditionalTreePrinter.print(TraditionalTreePrinter.java:74)
at org.apache.doris.common.treeprinter.AbstractTreePrinter.print(AbstractTreePrinter.java:28)
at cmy.MyTest.main(MyTest.java:43)
The package name is changing to org.apache.doris.common.treeprinter because I need to debug the code in my project.
This is because the AbstractTreeNode class missing equals and hashCode method.
I will submit a PR to fix this.
The text was updated successfully, but these errors were encountered:
Throws:
The package name is changing to
org.apache.doris.common.treeprinter
because I need to debug the code in my project.This is because the
AbstractTreeNode
class missingequals
andhashCode
method.I will submit a PR to fix this.
The text was updated successfully, but these errors were encountered: