New build system for cross-JDK testing

.blaze/blaze.conf

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+blaze.dependencies = [
+    "com.fizzed:jne:4.1.1"
+]
+
+java.source.version = 8

.blaze/blaze.java

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+import com.fizzed.blaze.Config;
+import com.fizzed.blaze.Contexts;
+import com.fizzed.blaze.Task;
+import com.fizzed.jne.HardwareArchitecture;
+import com.fizzed.jne.JavaHome;
+import com.fizzed.jne.JavaHomeFinder;
+import org.slf4j.Logger;
+
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.List;
+
+import static com.fizzed.blaze.Contexts.withBaseDir;
+import static com.fizzed.blaze.Systems.exec;
+import static java.util.Arrays.asList;
+import static java.util.Optional.ofNullable;
+
+public class blaze {
+
+    private final Logger log = Contexts.logger();
+    private final Config config = Contexts.config();
+    private final Path projectDir = withBaseDir("../").toAbsolutePath();
+
+    @Task(order = 1)
+    public void test() throws Exception {
+        final Integer jdkVersion = this.config.value("jdk.version", Integer.class).orNull();
+        final HardwareArchitecture jdkArch = ofNullable(this.config.value("jdk.arch").orNull())
+            .map(HardwareArchitecture::resolve)
+            .orElse(null);
+
+        final long start = System.currentTimeMillis();
+        final JavaHome jdkHome = new JavaHomeFinder()
+            .jdk()
+            .version(jdkVersion)
+            .hardwareArchitecture(jdkArch)
+            .preferredDistributions()
+            .sorted(jdkVersion != null || jdkArch != null)  // sort if any criteria provided
+            .find();
+
+        log.info("");
+        log.info("Detected {} (in {} ms)", jdkHome, (System.currentTimeMillis()-start));
+        log.info("");
+
+        exec("mvn", "clean", "test")
+            .workingDir(this.projectDir)
+            .env("JAVA_HOME", jdkHome.getDirectory().toString())
+            .verbose()
+            .run();
+    }
+
+    @Task(order = 2)
+    public void test_all_jdks() throws Exception {
+        // collect and find all the jdks we will test on
+        final List<JavaHome> jdks = new ArrayList<>();
+        for (int jdkVersion : asList(21, 17, 11, 8)) {
+            jdks.add(new JavaHomeFinder()
+                .jdk()
+                .version(jdkVersion)
+                .preferredDistributions()
+                .sorted()
+                .find());
+        }
+
+        log.info("Detected JDKs:");
+        jdks.forEach(jdk -> log.info("  {}", jdk));
+
+        for (JavaHome jdk : jdks) {
+            try {
+                log.info("");
+                log.info("Using JDK {}", jdk);
+                log.info("");
+
+                exec("mvn", "clean", "test")
+                    .workingDir(this.projectDir)
+                    .env("JAVA_HOME", jdk.getDirectory().toString())
+                    .verbose()
+                    .run();
+            } catch (Exception e) {
+                log.error("");
+                log.error("Failed on JDK " + jdk);
+                log.error("");
+                throw e;
+            }
+        }
+
+        log.info("Success on JDKs:");
+        jdks.forEach(jdk -> log.info("  {}", jdk));
+    }
+
+}

.blaze/pom.xml

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+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0  http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>blaze</groupId>
+  <artifactId>bigmap-blaze</artifactId>
+  <version>0.0.1</version>
+
+  <!--
+  THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT BY HAND!
+
+  Edit or create a <blaze-script>.conf file, and re-run the generate-maven-project command.
+  -->
+
+  <properties>
+    <maven.compiler.source>8</maven.compiler.source>
+    <maven.compiler.target>8</maven.compiler.target>
+    <maven.install.skip>true</maven.install.skip>
+    <maven.deploy.skip>true</maven.deploy.skip>
+  </properties>
+  <build>
+    <sourceDirectory>${project.basedir}</sourceDirectory>
+  </build>
+  <dependencies>
+    <dependency>
+      <groupId>com.fizzed</groupId>
+      <artifactId>blaze-ivy</artifactId>
+      <version>1.5.0</version>
+    </dependency>
+    <dependency>
+      <groupId>commons-io</groupId>
+      <artifactId>commons-io</artifactId>
+      <version>2.11.0</version>
+    </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+      <version>2.0.7</version>
+    </dependency>
+    <dependency>
+      <groupId>com.typesafe</groupId>
+      <artifactId>config</artifactId>
+      <version>1.3.0</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.ivy</groupId>
+      <artifactId>ivy</artifactId>
+      <version>2.5.2</version>
+    </dependency>
+    <dependency>
+      <groupId>com.fizzed</groupId>
+      <artifactId>blaze-core</artifactId>
+      <version>1.5.0</version>
+    </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-simple</artifactId>
+      <version>2.0.7</version>
+    </dependency>
+    <dependency>
+      <groupId>org.zeroturnaround</groupId>
+      <artifactId>zt-exec</artifactId>
+      <version>1.12</version>
+    </dependency>
+    <dependency>
+      <groupId>com.fizzed</groupId>
+      <artifactId>jne</artifactId>
+      <version>4.1.1</version>
+    </dependency>
+  </dependencies>
+</project>