On Thu, 13 Feb 2025 21:56:37 GMT, Harshitha Onkar <[email protected]> wrote:
>> Built-in Profiles are singleton objects and if the user happens to modify
>> this shared profile object via setData() then the modified version of the
>> profile is returned each time the same built-in profile is requested via
>> getInstance().
>>
>> It is good to protect Built-in profiles from such direct modification by
>> adding BuiltIn profile check in `setData()` such that **only copies** of
>> Built-In profiles are allowed to be updated.
>>
>> With the proposed fix, if Built-In profile is updated using `.setData()` it
>> throws _**IAE - "BuiltIn profile cannot be modified"**_
>>
>> Fix consists of:
>> * `private boolean isBuiltIn = false` in ICC_Profile which is set to true
>> when BuiltIn profiles are created and false for non-builtIn profile.
>> * Converted BuiltInProfile from private interface to private static class
>> (with all the profile instances as static final)
>> * `isBuiltIn` flag is set to true when BuiltInProfile are loaded.
>> * JavaDoc update for setData() (CSR required)
>>
>> There are no restrictions on creating copies of BuiltIn profile and then
>> modifying it, but what is being restricted with this fix is - the direct
>> modification of the shared BuiltIn profile instance.
>>
>> Applications which need a modified version of the ICC Profile should instead
>> do the following:
>>
>>
>> byte[] profileData = ICC_Profile.getData() // get the byte array
>> represtation of BuiltIn- profile
>> ICCProfile newProfile = ICC_Profile.getInstance(profileData) // create a new
>> profile
>> newProfile.setData() // to modify and customize the profile
>>
>>
>> Following existing tests are modified to update a copy of Built-In profile.
>>
>> - java/awt/color/ICC_Profile/SetHeaderInfo.java
>> - java/awt/color/ICC_ProfileSetNullDataTest.java
>> - sun/java2d/cmm/ProfileOp/SetDataTest.java
>
> Harshitha Onkar has updated the pull request incrementally with one
> additional commit since the last revision:
>
> javadoc update
src/java.desktop/share/classes/java/awt/color/ICC_Profile.java line 1166:
> 1164: * @throws IllegalArgumentException if this is a profile for one of
> the
> 1165: * built-in pre-defined ColorSpaces, i.e. those which can
> be obtained
> 1166: * by calling ICC_Profile.getInstance(int cspace)
you should put that method ref in {@code .. }
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PR Review Comment: https://git.openjdk.org/jdk/pull/23606#discussion_r1955279012
