# Cannot cast def \[java.lang.String\] to boolean

**URL:** <https://discuss.elastic.co/t/cannot-cast-def-java-lang-string-to-boolean/311824>\
**Category:** Elasticsearch\
**Tags:** painless\
**Created:** [August 10, 2022, 12:00pm UTC](https://discuss.elastic.co/t/cannot-cast-def-java-lang-string-to-boolean/311824 "2022-08-10T12:00:56Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Sourabh\_Korde](https://avatars.discourse-cdn.com/v4/letter/s/65b543/32.png) [@Sourabh\_Korde](https://discuss.elastic.co/u/Sourabh_Korde)\
**Post date:** [August 10, 2022, 12:00pm UTC](https://discuss.elastic.co/t/cannot-cast-def-java-lang-string-to-boolean/311824/1 "2022-08-10T12:00:56Z")

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Dear All,

I am simply trying to update documents using ingest pipeline with below script. But facing subjected error. Please suggest....

{  
"script": {  
"lang": "painless",  
"source": """  
if(ctx.customer\_gender = "MALE")  
{  
ctx.customer\_gender = "male"  
}  
else  
{  
ctx.customer\_gender = "female"  
}  
"""  
}  
}

---

<div class="post-metadata">

**Author:** ![RabBit\_BR](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rabbit_br/32/82261_2.png) [@RabBit\_BR](https://discuss.elastic.co/u/RabBit_BR)\
**Post date:** [August 10, 2022, 12:30pm UTC](https://discuss.elastic.co/t/cannot-cast-def-java-lang-string-to-boolean/311824/2 "2022-08-10T12:30:13Z")

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> [@Sourabh\_Korde](#):
>
> (ctx.customer\_gender = "MALE"

Hi @Sourabh_Korde

try:

`if(ctx.customer_gender == "MALE")`

---

<div class="post-metadata">

**Author:** ![Sourabh\_Korde](https://avatars.discourse-cdn.com/v4/letter/s/65b543/32.png) [@Sourabh\_Korde](https://discuss.elastic.co/u/Sourabh_Korde)\
**Post date:** [August 10, 2022, 1:12pm UTC](https://discuss.elastic.co/t/cannot-cast-def-java-lang-string-to-boolean/311824/3 "2022-08-10T13:12:18Z")

</div>

Worked out, thank you.

"script": {  
"lang": "painless",  
"source": """  
**if(ctx.customer\_gender == "MALE")**  
{  
ctx.customer\_gender = "m"  
}  
else  
{  
ctx.customer\_gender = "f"  
}  
"""  
}

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 7, 2022, 1:13pm UTC](https://discuss.elastic.co/t/cannot-cast-def-java-lang-string-to-boolean/311824/4 "2022-09-07T13:13:17Z")

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