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https://issues.apache.org/jira/browse/THRIFT-3486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gospo updated THRIFT-3486:
--------------------------
    Description: 
h4. Problem description
In case of a binary field, _getFieldValue_ returns a _byte[]_ while 
_setFieldValue_ expects a _ByteBuffer_.

This design yields an unexpected requirement and is error prone.

This is a perfectly fine use-case that a client wants to write a field value 
from one object to another object of the same thrift generated class:
{code}
obj1.setFieldValue(SOME_FIELD, obj2.getFieldValue(SOME_FIELD))
{code}

It is a reasonable assumption that if I use a getter to obtain some property 
value, the corresponding setter should accept a value of the same type.

Currently if _SOME_FIELD_ is a binary type field an exception is thrown: 
_java.lang.ClassCastException: [B cannot be cast to java.nio.ByteBuffer_.

h4. Change proposal
Setter _setFieldValue_ should accept a _byte[]_ value for a binary field.

  was:
h4. Problem description
In case of a binary field, _getFieldValue_ returns a _byte[]_ while 
_setFieldValue_ expects a _ByteBuffer_.

This design yields an unexpected requirement and is error prone.

This is a perfectly fine use-case that a client wants to write a field value 
from one object to another object of the same thrift generated class:
{code}
obj1.setFieldValue(SOME_FIELD, obj2.getFieldValue(SOME_FIELD))
{code}

It is a reasonable assumption that if I use a getter to obtain some property 
value, the corresponding setter should accept a value of the same type.

Currently if _SOME_FIELD_ is a binary type field an exception is thrown: 
_java.lang.ClassCastException: [B cannot be cast to java.nio.ByteBuffer_.

h4. Change proposal
Setter _setFieldValue_ should accept _byte[]_ value for a binary field.


> Java generated `getFieldValue` is incompatible with `setFieldValue` for 
> binary values.
> --------------------------------------------------------------------------------------
>
>                 Key: THRIFT-3486
>                 URL: https://issues.apache.org/jira/browse/THRIFT-3486
>             Project: Thrift
>          Issue Type: Improvement
>          Components: Java - Compiler
>            Reporter: Gospo
>            Assignee: Benjamin Gould
>            Priority: Minor
>
> h4. Problem description
> In case of a binary field, _getFieldValue_ returns a _byte[]_ while 
> _setFieldValue_ expects a _ByteBuffer_.
> This design yields an unexpected requirement and is error prone.
> This is a perfectly fine use-case that a client wants to write a field value 
> from one object to another object of the same thrift generated class:
> {code}
> obj1.setFieldValue(SOME_FIELD, obj2.getFieldValue(SOME_FIELD))
> {code}
> It is a reasonable assumption that if I use a getter to obtain some property 
> value, the corresponding setter should accept a value of the same type.
> Currently if _SOME_FIELD_ is a binary type field an exception is thrown: 
> _java.lang.ClassCastException: [B cannot be cast to java.nio.ByteBuffer_.
> h4. Change proposal
> Setter _setFieldValue_ should accept a _byte[]_ value for a binary field.



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