It was something like 72 degrees today — which made for a good ducky day. I’ve been breaking the ice on the pond, and it was finally warm enough for them to go swimming. I’d filled a tub with warm water a week or three ago so they got to splash and clean up, but this was the first time they’ve been able to swim around since everything froze over in January.
The java code I now maintain is normally executed through a k8s cluster — this means just testing a quick change requires running the entire deployment pipeline. Sometimes, though, I really just want to test something quickly. In such instances, you can manually run a jar file using “java -jar my_file.jar” —
The quick way is to read the MANIFEST.MF file — look for the Main-Class and Start-Class lines. You can also run “jar tf path/to/my.jar” to list out the class files.
Attempting to build some Java code, I got a lot of errors indicating a trusted certificate chain was not available:
Could not transfer artifact org.springframework.boot:spring-boot-starter-parent:pom:2.2.0.RELEASE from/to repo.spring.io (<redacted>): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
And
[ERROR] Failed to execute goal on project errorhandler: Could not resolve dependencies for project com.example.npm:errorhandler:jar:0.0.1-SNAPSHOT: The following artifacts could not be resolved: org.springframework.boot:spring-boot-starter-data-jpa:jar:2.3.7.BUILD-SNAPSHOT, org.springframework.boot:spring-boot:jar:2.3.7.BUILD-SNAPSHOT, org.springframework.boot:spring-boot-configuration-processor:jar:2.3.7.BUILD-SNAPSHOT: Could not transfer artifact org.springframework.boot:spring-boot-starter-data-jpa:jar:2.3.7.BUILD-20201211.052207-37 from/to spring-snapshots (https://repo.spring.io/snapshot): transfer failed for https://repo.spring.io/snapshot/org/springframework/boot/spring-boot-starter-data-jpa/2.3.7.BUILD-SNAPSHOT/spring-boot-starter-data-jpa-2.3.7.BUILD-20201211.052207-37.jar: Certificate for <repo.spring.io> doesn't match any of the subject alternative names: [] -> [Help 1]
Ideally, you could just add whatever cert(s) needed to be trusted into the cacerts file for the Java instance using keytool (.\keytool.exe -import -alias digicert-intermed -cacerts -file c:\tmp\digi-int.cer) however the work computers are locked down such that I am unable to import certs into the Java trust store. The second error makes me think it wouldn’t work anyway — if there’s no matching SAN on the cert, trusting the cert wouldn’t do anything.
Fortunately, there are a few flags you can add to mvn to ignore certificate errors — thus allowing the build to complete without requiring access to the cacerts file. There is, of course, a possibility that the trust failure is because your connection is being redirected maliciously … but I see enough other people getting trust failures for this spring-boot stuff (and visiting the site doesn’t show anything suspect) that I’m happy to bypass the security validation this once and just be done with the build 🙂
mvn package -DskipTests -Dmaven.wagon.http.ssl.insecure=true -Dmaven.wagon.http.ssl.allowall=true -Dmaven.wagon.http.ssl.ignore.validity.dates=true jib:build
Teams now shows the timezone offset and local time for individuals — because it’s always 2AM somewhere!
The contact card that comes up when you click on a user in Microsoft Teams now includes the current local time and time zone offset information for the individual — very useful to avoid ringing someone up at 2AM.
The pepper seeds are in their little pots and (hopefully) will sprout in the next week or so. Anya put a few of her herb seeds into pots as well … but she’s got more seeds to start.
Next up, I want to get the broccoli, Brussels sprouts, cabbage, cauliflower, ground cherries, and tomatoes going.
Anya and I saw a single buzzard on Sunday, but today was the first time we saw a whole flock circling …
We started soaking our first seeds for the garden this year — Anya has quite a few herbs getting ready to be started, and I have an assortment of peppers.
We were finally able to get the starplates to build a 1V geodesic dome for the new chicken coop. Super excited — and we’re going to have a lot of construction going on this year. A greenhouse tunnel for extending the growing season, a chicken coop, a duck coop, a pig shelter, and hopefully a sheep shelter too.
-- Case insensitive match SELECT * FROM mytable WHERE columnName ~* 'this|that';
-- Case sensitive match SELECT * FROM mytable WHERE columnName ~ 'this|that';
SELECT * FROM mytable WHERE columnName like any (array['%this%', '%that%']);
-- This is translated to a regex query internally, so not effectively different than constructing the regex query yourself SELECT * FROM mytable WHERE columnName SIMILAR TO '%(this|that)%';