RFR: 8153490: Cannot setBytes() if incoming buffer's length is bigger than number of elements we want to insert. [v2]

Mitsuru Kariya github.com+2217224+kariya-mitsuru at openjdk.java.net
Thu May 13 16:18:47 UTC 2021


> Fix `SerialBlob.setBytes(long pos, byte[] bytes, int offset, int length)` in the following cases:
> 
> 1. `pos - 1 + bytes.length - offset > this.length() && pos - 1 + length <= this.length()`
>    The original implementation throws `ArrayIndexOutOfBoundsException` but this case should end successfully.
>    (test31)
> 
> 2. `pos - 1 + length > this.length()`
>    The original implementation throws `ArrayIndexOutOfBoundsException` but this case should end successfully. *1
>    (test32)
> 
> 3. `pos == this.length() + 1`
>    The original implementation throws `SerialException` but this case should end successfully. *2
>    (test33)
> 
> 4. `length < 0`
>    The original implementation throws `ArrayIndexOutOfBoundsException` but this case should throw `SerialException`.
>    (test34)
> 
> Additionally, fix `SerialClob.setString(long pos, String str, int offset, int length)` in the following cases:
> 
> 1. `offset > str.length()`
>    The original implementaion throws `StringIndexOutOfBoundsException` but this case should throw `SerialException`.
>    (test39)
> 
> 2. `pos - 1 + str.length() - offset > this.length() && pos - 1 + length <= this.length()`
>    The original implementation throws `ArrayIndexOutOfBoundsException` but this case should end successfully.
>    (test32)
> 
> 3. `pos - 1 + length > this.length()`
>    The original implementaion throws `SerialException` but this case should end successfully. *3
>    (test40)
> 
> 4. `pos == this.length() + 1`
>    The original implementaion throws `SerialException` but this case should end successfully. *4
>    (test41)
> 
> 5. `length < 0`
>    The original implementation throws `StringIndexOutOfBoundsException` but this case should throw `SerialException`.
>    (test42)
> 
> 
> The javadoc has also been modified according to the above.
> 
> *1 The documentation of `Blob.setBytes()` says, "If the end of the Blob value is reached while writing the array of bytes, then the length of the Blob value will be increased to accommodate the extra bytes."
> 
> *2 The documentation of `Blob.setBytes()` says, "If the value specified for pos is greater than the length+1 of the BLOB value then the behavior is undefined."
>    So, it should work correctly when pos == length+1 of the BLOB value.
> 
> *3 The documentation of `Clob.setString()` says, "If the end of the Clob value is eached while writing the given string, then the length of the Clob value will be increased to accommodate the extra characters."
> 
> *4 The documentation of `Clob.setString()` says, "If the value specified for pos is greater than the length+1 of the CLOB value then the behavior is undefined."
>    So, it should work correctly when pos == length+1 of the CLOB value.

Mitsuru Kariya has updated the pull request incrementally with one additional commit since the last revision:

  Add check: ensure length >= 0

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/4001/files
  - new: https://git.openjdk.java.net/jdk/pull/4001/files/8849de96..6a0cc1ad

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=4001&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=4001&range=00-01

  Stats: 30 lines in 4 files changed: 30 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4001.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4001/head:pull/4001

PR: https://git.openjdk.java.net/jdk/pull/4001


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