GraphCompose 2.0

For users

GraphCompose v1.6.1 is a maintenance + compatibility patch. Drops the Java 21 source/target baseline to Java 17+ so the library can ship into older enterprise stacks without a fork, and refreshes test/build dependencies (incl. CVE pass + ByteBuddy/Mockito update so Mockito works on JDK 25).

No public API change — engine, DSL, themes, templates, and backend records all stay source-compatible with v1.6.0; existing v1.6.0 callers compile and behave unchanged.

Co-developed with external contributor @jottinger (#8, #10).

Toolchain

• Java 17 baseline. <maven.compiler.release> flips from 21 to 17 across pom.xml, examples/pom.xml, and benchmarks/pom.xml. Engine source loses the Java 21–only constructs (switch-with-type-patterns, switch-with-deconstruction, List.getFirst(), Thread.threadId()) in favour of Java 17–compatible forms. CI runs against Temurin JDK 17 / 21 / 25 in matrix.
• Dependency refresh + CVE pass. Bumps Jackson 2.20.1 → 2.21.3, Logback 1.5.18 → 1.5.32, Lombok 1.18.38 → 1.18.46, POI 5.4.0 → 5.5.1, SnakeYAML 2.4 → 2.6, AssertJ 3.27.3 → 3.27.6, JUnit 5.12.2 → 5.14.4, Mockito 5.20.0 → 5.23.0. Adds explicit ByteBuddy 1.18.7 so Mockito works on the Java 25+ access rules. Maven plugin bumps: maven-compiler-plugin 3.13 → 3.15, maven-surefire-plugin 3.2.5 → 3.5.5, exec-maven-plugin 3.5 → 3.6.2.

Verified

• CI green on Temurin JDK 17 / 21 / 25 in parallel matrix.
• 819 / 0 / 0 / 0 canonical test suite green on every JDK.
• 26 runnable examples regenerate cleanly.
• Engine source has zero remaining Java 21–only constructs (getFirst, getLast, threadId, switch type patterns, switch deconstruction).

Quick start

Maven:

<repositories>
    <repository><id>jitpack.io</id><url>https://jitpack.io</url></repository>
</repositories>

<dependency>
    <groupId>com.github.DemchaAV</groupId>
    <artifactId>GraphCompose</artifactId>
    <version>v1.6.1</version>
</dependency>

Gradle (Kotlin DSL):

repositories { maven("https://jitpack.io") }
dependencies { implementation("com.github.demchaav:GraphCompose:v1.6.1") }

Looking ahead

Maven Central distribution (#7) remains queued for the upcoming v1.7.0, alongside the JMH benchmark migration. v1.6.1 stays on JitPack.

Links

• Live showcase — install snippet, every example with a generated PDF preview, template gallery, feature examples.
• Templates v2 landing — 14 CV + 14 paired cover-letter presets.
• Migration v1.5 → v1.6 — for callers still on v1.5 (engine source-compatible to v1.6.x).
• CHANGELOG.md — full technical changelog.

Author intent, not coordinates.