| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | pgsql-jdbc(at)postgresql(dot)org |
| Subject: | class file format issue |
| Date: | 2015-02-25 20:23:51 |
| Message-ID: | 54EE2F57.2080005@gmx.net |
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| Thread: | |
| Lists: | pgsql-jdbc |
I appears to me that the latest jdbc4 driver is compiled with a wrong
class file format.
unzip -q -c postgresql-9.4-1201.jdbc41.jar org/postgresql/PGStatement.class | od -t x1u1 -N 10
0000000 ca fe ba be 00 00 00 33 00 23
202 254 186 190 0 0 0 51 0 35
The above is OK.
unzip -q -c postgresql-9.4-1201.jdbc4.jar org/postgresql/PGStatement.class | od -t x1u1 -N 10
0000000 ca fe ba be 00 00 00 33 00 23
202 254 186 190 0 0 0 51 0 35
That should be "50" instead of "51".
As a result, loading this driver with Java 1.6.0 results in
java.lang.UnsupportedClassVersionError: org/postgresql/Driver : Unsupported major.minor version 51.0
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