cr7154822 : Request for code review

[Daniel D. Daugherty]

On 3/28/12 10:28 PM, David Buck wrote:
> Hi!
>
> Please review my fix for the following bug :
>
> [ Bug ID: 7154822 forward port fix for Bug 13645891 to JDK8 jcmd (1024 
> byte file size limit issue) ]
> http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7154822
>
> The issue is there is an arbitrary limit in the size of a script file 
> you pass to the jcmd command (via the -f option) of 1024 bytes. The 
> solution is for jcmd to break up the input file into individual lines 
> and send them one at a time to the jvm.
>
> A similar fix has already been done for JRockit's jrcmd command and 
> will be released in R28.2.3.
>
> [ jdk ]
> http://cr.openjdk.java.net/~dbuck/7154822/webrev.00/

src/share/classes/sun/tools/jcmd/JCmd.java
     line 145: would split("$") work here? My memory is rusty but I
         think that catches all forms of line termination.

test/sun/tools/jcmd/dcmd-big-script.txt
     No comments.

test/sun/tools/jcmd/jcmd-big-script.sh
     lines 46,61: I don't think '/dev/null' works on MKS and tests are
         still executed on MKS. grep around the testbase and see
         how other tests handle /dev/null.

     line 48-49: please change to:
         status="$?"
         if [ "$status" != 0 ]; then
             echo "jcmd command returned non-zero exit code 
(status=$status). Failed."

     line 54: please redirect output of 'grep' here to /dev/null or the
         appropriate bit bucket...

Dan

>
> All the default jprt tests and the jdk_tools tests were run and passed.
>
> Cheers,
> -Buck