Groovy domain index is not bound while splitting an array

Question

I have created very simple function that should return the first array after splitting it with a char.

int add(String version){
    splitVersion = version.split('.')
    echo splitVersion[0]
}

I'm calling the function like that: add("1.0.0")

And right after that I"m receving this error:

java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0

It's seem to be that it's not acting like a String at all, and when I try to print version it's print the value that sent(1.0.0)

What could be the issue?

Thanks!

ryuk · Accepted Answer · 2022-05-01 11:03:52Z

2

The split method receives a regex, so you should use it like this.

int add(String version){
   splitVersion = version.split("\\.")
   echo splitVersion[0]
}

answered May 1, 2022 at 11:03

ryuk

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7 Comments

Itzik.B Over a year ago

Thanks, do you have any clue why for add("1.0.0") the line echo splitVersion[2]+1return 01 instand of 1?

Itzik.B Over a year ago

while trying to parseInt i'm getting

java.lang.ClassCastException: org.jenkinsci.plugins.workflow.steps.EchoStep.message expects class java.lang.String but received class java.lang.Integer

ryuk Over a year ago

i dont know what echo does, try using return splitVersion[0] instead.

Itzik.B Over a year ago

i'm trying to increment the last index by 1. and instand of getting 1, im getting 01 like concatination..

ryuk Over a year ago

yes that is because splitVersion[0] is a String, so "0"+1="01"

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