[pgjdbc/pgjdbc] c745f4: fix: handle nulls when the following clasess are u...

Branch: refs/heads/release/42.2
Home: https://github.com/pgjdbc/pgjdbc
Commit: c745f4e549b119b8332ef48bbc8b8525ccba0f21
https://github.com/pgjdbc/pgjdbc/commit/c745f4e549b119b8332ef48bbc8b8525ccba0f21
Author: Vladimir Sitnikov <sitnikov(dot)vladimir(at)gmail(dot)com>
Date: 2020-08-28 (Fri, 28 Aug 2020)

Changed paths:
M CHANGELOG.md
M pgjdbc/src/main/java/org/postgresql/geometric/PGbox.java
M pgjdbc/src/main/java/org/postgresql/geometric/PGcircle.java
M pgjdbc/src/main/java/org/postgresql/geometric/PGline.java
M pgjdbc/src/main/java/org/postgresql/geometric/PGlseg.java
M pgjdbc/src/main/java/org/postgresql/geometric/PGpath.java
M pgjdbc/src/main/java/org/postgresql/geometric/PGpoint.java
M pgjdbc/src/main/java/org/postgresql/geometric/PGpolygon.java
M pgjdbc/src/main/java/org/postgresql/jdbc/PgConnection.java
M pgjdbc/src/main/java/org/postgresql/jdbc/PgPreparedStatement.java
M pgjdbc/src/main/java/org/postgresql/util/PGInterval.java
M pgjdbc/src/main/java/org/postgresql/util/PGmoney.java
M pgjdbc/src/main/java/org/postgresql/util/PGobject.java
A pgjdbc/src/test/java/org/postgresql/test/jdbc2/PGObjectGetTest.java
A pgjdbc/src/test/java/org/postgresql/test/jdbc2/PGObjectSetTest.java

Log Message:
-----------
fix: handle nulls when the following clasess are used: PGbox, PGcircle, PGline, PGlseg, PGpath, PGpoint, PGpolygon, and PGmoney

1) PGobject.setValue(null) can be used to set the wrapped value to null
Note: previously the sub-classes of PGobject threw NPE for setValue(null)
2) Return null from `getValue` in case the typed null is received from the database
3) Assume PGBinaryObject#lengthInBytes == 0 means the value should be set as null when sending data to the database

see #1870