Not found JDK 11 java.net.http.HttpClient #419
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I believe (without actually trying it just now) that the solution will be to include PL/Java does not (yet) treat your code as modular; effectively, it puts your code on the class path, not the module path. That would normally give your code the "unnamed module" behavior where dependencies don't have to be declared. PL/Java itself, however, is modular, so there is a restricted module graph in effect before your code is loaded, and your code can only use the modules that graph includes. So |
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The existing modules documentation in PL/Java , I see, does not explain this very well. I will add to it. |
PL/Java code loaded with install_jar is treated as unnamed-module, legacy classpath code. Such code is advertised as having access to all readable modules, without having to declare dependencies (as it can't declare dependencies; it would have to be a named module to do that). Ah, but what are "all readable modules"? Only the ones enumerated at JVM startup, using as root modules PL/Java itself and anything named with --add-modules. So that option must be used if any Java modules will be needed beyond the ones PL/Java itself depends on. This added documentation addresses #419.
PR #446, #443, #442, #441, #445, #444. Addresses issues: Bug #416 crash with SQL_ASCII database and bad vmoptions Doc #419 better document the use of --add-modules in vmoptions Bug #425 install_jar from http URLs, add test to CI Feature #426 allow functions declared on an interface as well as a class Track PG #434 postgres/postgres@b9b21ac broke unpackaged ALTER UPDATE Track JDK #435 check and reject Java 20 builds with JDK-8309515 bug
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Resolved in 1.6.5 by adding documentation for |
I have a simple PL/Java program of using JDK 11 (also tried 17) java.net.http.HttpClient to request another restful service. Successfully compiling by maven and
install_jarandset_classpathin PostgreSQL, but when executing the function, an error is thrown for 'java.lang.NoClassDefFoundError: java/net/http/HttpClient'.Have tried to add
java.net.httpjmod path topljava.module_path, but not solve it. Could anyone help?The text was updated successfully, but these errors were encountered: