| Path lib = Path.of("lib"); | |
| void main() throws Exception { | |
| step("Populate lib directory"); | |
| var guardian = get("org.apiguardian.api", "https://repo.maven.apache.org/maven2/org/apiguardian/apiguardian-api/1.1.2/apiguardian-api-1.1.2.jar"); | |
| var jspecify = get("org.jspecify", "https://repo.maven.apache.org/maven2/org/jspecify/jspecify/1.0.0/jspecify-1.0.0.jar"); | |
| var commons = get("org.junit.platform.commons", "https://repo.maven.apache.org/maven2/org/junit/platform/junit-platform-commons/6.0.1/junit-platform-commons-6.0.1.jar"); | |
| step("Describe module org.junit.platform.commons"); | |
| run("jar", "--describe-module", "--file", commons); |
This article is a guide for beginners in the early stages of their Java learning journey. It explores an introduction to JUnit using a minimal set of tools. Exploring a non-JDK API shouldn't be much harder to write and run then the typical "Hello World" Java program.
In Paving the on-ramp Brian Goetz explains the goal and role of Java's on-ramp in great detail. You may want to read that design document first.
jdk/jdk/test/jdk/TEST.ROOT exists
| J:\jdks\jdk-22.0.1\bin\java.exe | |
| -ea | |
| -Didea.test.cyclic.buffer.size=1048576 | |
| "-javaagent:C:\Users\Sor\AppData\Local\Programs\IntelliJ IDEA Community Edition\lib\idea_rt.jar=56078:C:\Users\Sor\AppData\Local\Programs\IntelliJ IDEA Community Edition\bin" | |
| --add-reads com.io7m.idstore.tests=ALL-UNNAMED | |
| --add-opens com.io7m.idstore.tests/com.io7m.idstore.tests=ALL-UNNAMED | |
| --add-opens com.io7m.idstore.tests/com.io7m.idstore.tests.integration=ALL-UNNAMED | |
| --add-opens com.io7m.idstore.tests/com.io7m.idstore.tests.shell=ALL-UNNAMED | |
| --add-opens com.io7m.idstore.tests/com.io7m.idstore.tests.server=ALL-UNNAMED |
| Subject: [PATCH] Cleanup conversion | |
| --- | |
| Index: test/langtools/lib/combo/tools/javac/combo/ComboWatcher.java | |
| IDEA additional info: | |
| Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP | |
| <+>UTF-8 | |
| =================================================================== | |
| diff --git a/test/langtools/lib/combo/tools/javac/combo/ComboWatcher.java b/test/langtools/lib/combo/tools/javac/combo/ComboWatcher.java | |
| new file mode 100644 | |
| --- /dev/null (revision 7b1af0140a6819bc7837dfa18a39420f9ac1c8b6) |
| org.opentest4j.AssertionFailedError: Run[stdOut=, stdErr=j:\github\sormuras\jdk\build\windows-x86_64-server-release\test-support\jtreg_test_langtools_tools_javac_launcher\tmp\junit10123584331460239903\Hello.java:3: error: cannot find symbol | |
| System.out.println("Hello " + new World("Noname")); | |
| ^ | |
| symbol: class World | |
| location: interface Hello | |
| 1 error | |
| , exception=com.sun.tools.javac.launcher.Main$Fault: error: compilation failed] ==> expected: <null> but was: <com.sun.tools.javac.launcher.Main$Fault: error: compilation failed> | |
| at org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:151) | |
| at org.junit.jupiter.api.AssertionFailureBuilder.buildAndThrow(AssertionFailureBuilder.java:132) | |
| at org.junit.jupiter.api.AssertNull.failNotNull(AssertNull.java:50) |
| class Program { | |
| public static void main(String... args) { | |
| new Program().printGreeting(); | |
| } | |
| void printGreeting() { | |
| // just scaffolded | |
| throw new UnsupportedOperationException("Not implemented, yet"); | |
| // will be replaced | |
| } |
| import java.nio.file.Files; | |
| import java.nio.file.Path; | |
| import java.util.function.UnaryOperator; | |
| import java.util.regex.Pattern; | |
| public class Generator extends Program { | |
| public static void main(String... args) { | |
| var program = loadString("Program.java"); | |
| var replacer = new Replacer(loadString("Generator.java")); | |
| program = replacer.replace( |
| { | |
| "apiVersion": "0.0.1", | |
| "kind": "hashedrekord", | |
| "spec": { | |
| "data": { | |
| "hash": { | |
| "algorithm": "sha256", | |
| "value": "d32655126138500f04c8b02c229c1d2de80cec0f3a72b3aaf2c8f4898543e306" | |
| } | |
| }, |
| jshell> Integer i = 5 | |
| i ==> 5 | |
| jshell> switch(i) { | |
| ...> case Integer i && i > 9 -> System.out.println(">9"); | |
| ...> default -> System.out.println("..."); | |
| ...> } | |
| ... | |
| jshell> Integer i = 50 |