Grant Henke has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/15191 )

Change subject: [java] Fix various build warnings
......................................................................


Patch Set 3:

(8 comments)

http://gerrit.cloudera.org:8080/#/c/15191/3/java/config/spotbugs/excludeFilter.xml
File java/config/spotbugs/excludeFilter.xml:

http://gerrit.cloudera.org:8080/#/c/15191/3/java/config/spotbugs/excludeFilter.xml@115
PS3, Line 115:             <!-- Often tests testing exceptions have "exception" 
in the name. -->
> Seems easy enough to address (later).
The name made sense (PrintStreamWithIOException) so I didn't see a reason to 
change it.


http://gerrit.cloudera.org:8080/#/c/15191/3/java/config/spotbugs/excludeFilter.xml@239
PS3, Line 239:         <!-- Reference equality is intended here. -->
> Not clear how the three <Bug> elements have to do with this.
Bad copy paste.


http://gerrit.cloudera.org:8080/#/c/15191/3/java/config/spotbugs/excludeFilter.xml@242
PS3, Line 242:             <Bug pattern="BIT_ADD_OF_SIGNED_BYTE" />
             :             <Bug pattern="SF_SWITCH_FALLTHROUGH" />
             :             <Bug pattern="SF_SWITCH_NO_DEFAULT" />
> You modified the code to disable checkstyle though; does that mean this is
This is the spotbugs file. Both tools flagged it.


http://gerrit.cloudera.org:8080/#/c/15191/3/java/kudu-client/src/main/java/org/apache/kudu/client/CallResponse.java
File java/kudu-client/src/main/java/org/apache/kudu/client/CallResponse.java:

http://gerrit.cloudera.org:8080/#/c/15191/3/java/kudu-client/src/main/java/org/apache/kudu/client/CallResponse.java@161
PS3, Line 161: @Override
             :   public boolean equals(Object o) {
             :     return super.equals(o);
             :   }
             :
             :   @Override
             :   public int hashCode() {
             :     return super.hashCode();
             :   }
> By default, won't the parent's method be invoked anyways?
Yes, but that doesn't satisfy spotbugs. We still want the parent's behavior so 
I override calling super.


http://gerrit.cloudera.org:8080/#/c/15191/3/java/kudu-client/src/main/java/org/apache/kudu/util/NetUtil.java
File java/kudu-client/src/main/java/org/apache/kudu/util/NetUtil.java:

http://gerrit.cloudera.org:8080/#/c/15191/3/java/kudu-client/src/main/java/org/apache/kudu/util/NetUtil.java@131
PS3, Line 131:  new InetAddress[0];
> Yeah I agree this looks fishy. Is it possible for getAllByName() to return
I will just undo and add a rule exclusion.


http://gerrit.cloudera.org:8080/#/c/15191/3/java/kudu-subprocess/src/main/java/org/apache/kudu/subprocess/MessageIO.java
File 
java/kudu-subprocess/src/main/java/org/apache/kudu/subprocess/MessageIO.java:

http://gerrit.cloudera.org:8080/#/c/15191/3/java/kudu-subprocess/src/main/java/org/apache/kudu/subprocess/MessageIO.java@96
PS3, Line 96:               String.format("unable to receive message, expected 
(%d) bytes " +
            :                       "but read (%d) bytes", size, read));
> Wasn't the earlier formatting correct?
Done


http://gerrit.cloudera.org:8080/#/c/15191/3/java/kudu-subprocess/src/main/java/org/apache/kudu/subprocess/ProtocolHandler.java
File 
java/kudu-subprocess/src/main/java/org/apache/kudu/subprocess/ProtocolHandler.java:

http://gerrit.cloudera.org:8080/#/c/15191/3/java/kudu-subprocess/src/main/java/org/apache/kudu/subprocess/ProtocolHandler.java@36
PS3, Line 36: public abstract class ProtocolHandler<I extends Message,
            :                                       O extends Message>
> I find earlier Request/Response generic types better for readability than I
I think the issue is that it makes it less clear that they are types and not 
variables.

The checkstlye rule for this is described here: 
https://checkstyle.sourceforge.io/config_naming.html#ClassTypeParameterName

I will do RequestT and ResponseT since that conforms to the rule.


http://gerrit.cloudera.org:8080/#/c/15191/3/java/kudu-subprocess/src/main/java/org/apache/kudu/subprocess/SubprocessExecutor.java
File 
java/kudu-subprocess/src/main/java/org/apache/kudu/subprocess/SubprocessExecutor.java:

http://gerrit.cloudera.org:8080/#/c/15191/3/java/kudu-subprocess/src/main/java/org/apache/kudu/subprocess/SubprocessExecutor.java@58
PS3, Line 58:       // Exit the program with a nonzero status code, by throwing 
a runtime exception.
            :       // if unexpected exception(s) are thrown by the reader or 
writer tasks.
> Comment needs to be rewritten.
Done



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I75649e6ad26eec1942811fcb790fc9a2c0866a6b
Gerrit-Change-Number: 15191
Gerrit-PatchSet: 3
Gerrit-Owner: Grant Henke <[email protected]>
Gerrit-Reviewer: Adar Dembo <[email protected]>
Gerrit-Reviewer: Bankim Bhavsar <[email protected]>
Gerrit-Reviewer: Grant Henke <[email protected]>
Gerrit-Reviewer: Hao Hao <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Comment-Date: Mon, 10 Feb 2020 23:02:08 +0000
Gerrit-HasComments: Yes

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