dependency: Add JDK system dependency

The JDK system dependency is important for detecting JDK include paths
that may be useful when developing a JNI interface.

7 files changed, 105 insertions, 0 deletions

diff --git a/test cases/java/9 jdk/lib/com_mesonbuild_JdkTest.c b/test cases/java/9 jdk/lib/com_mesonbuild_JdkTest.c
new file mode 100644
index 000000000..075e37b2b
--- /dev/null
+++ b/test cases/java/9 jdk/lib/com_mesonbuild_JdkTest.c
@@ -0,0 +1,9 @@
+#include <jni.h>
+
+#include "com_mesonbuild_JdkTest.h"
+
+JNIEXPORT jint JNICALL Java_com_mesonbuild_JdkTest_jdk_1test
+  (JNIEnv *env, jclass clazz)
+{
+    return (jint)0xdeadbeef;
+}
diff --git a/test cases/java/9 jdk/lib/com_mesonbuild_JdkTest.h b/test cases/java/9 jdk/lib/com_mesonbuild_JdkTest.h
new file mode 100644
index 000000000..40083ac9b
--- /dev/null
+++ b/test cases/java/9 jdk/lib/com_mesonbuild_JdkTest.h
@@ -0,0 +1,21 @@
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+/* Header for class com_mesonbuild_JdkTest */
+
+#ifndef _Included_com_mesonbuild_JdkTest
+#define _Included_com_mesonbuild_JdkTest
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     com_mesonbuild_JdkTest
+ * Method:    jdk_test
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL Java_com_mesonbuild_JdkTest_jdk_1test
+  (JNIEnv *, jclass);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/test cases/java/9 jdk/lib/meson.build b/test cases/java/9 jdk/lib/meson.build
new file mode 100644
index 000000000..a94776972
--- /dev/null
+++ b/test cases/java/9 jdk/lib/meson.build
@@ -0,0 +1,14 @@
+sources = files(
+  'native.c',
+  'com_mesonbuild_JdkTest.c',
+)
+
+jdkjava = shared_module(
+  'jdkjava',
+  sources,
+  dependencies : [jdk],
+)
+
+jdkjava_dep = declare_dependency(
+  link_with : jdkjava,
+)
diff --git a/test cases/java/9 jdk/lib/native.c b/test cases/java/9 jdk/lib/native.c
new file mode 100644
index 000000000..0b5e71890
--- /dev/null
+++ b/test cases/java/9 jdk/lib/native.c
@@ -0,0 +1,11 @@
+#include <jni.h>
+
+JNIEXPORT jint JNICALL
+JNI_OnLoad(JavaVM *vm, void *reserved)
+{
+    return JNI_VERSION_1_8;
+}
+
+JNIEXPORT void JNICALL
+JNI_OnUnload(JavaVM *vm, void *reserved)
+{}
diff --git a/test cases/java/9 jdk/meson.build b/test cases/java/9 jdk/meson.build
new file mode 100644
index 000000000..310ba5e2a
--- /dev/null
+++ b/test cases/java/9 jdk/meson.build
@@ -0,0 +1,18 @@
+project('jdkjava', ['c', 'java'])
+
+if build_machine.system() == 'cygwin'
+  error('MESON_SKIP_TEST: cygwin test failures')
+endif
+
+if build_machine.system() == 'windows' and build_machine.cpu_family() == 'x86'
+  error('MESON_SKIP_TEST: failing builds on 32bit Windows because a 32bit JDK isn not available in the Azure Pipelines Windows images')
+endif
+
+fs = import('fs')
+
+java = find_program('java')
+
+jdk = dependency('jdk', version : '>=1.8')
+
+subdir('lib')
+subdir('src')
diff --git a/test cases/java/9 jdk/src/com/mesonbuild/JdkTest.java b/test cases/java/9 jdk/src/com/mesonbuild/JdkTest.java
new file mode 100644
index 000000000..35c47cef8
--- /dev/null
+++ b/test cases/java/9 jdk/src/com/mesonbuild/JdkTest.java
@@ -0,0 +1,15 @@
+package com.mesonbuild;
+
+public final class JdkTest {
+    private static native int jdk_test();
+
+    public static void main(String[] args) {
+        if (jdk_test() != 0xdeadbeef) {
+            throw new RuntimeException("jdk_test() did not return 0");
+        }
+    }
+
+    static {
+        System.loadLibrary("jdkjava");
+    }
+}
diff --git a/test cases/java/9 jdk/src/meson.build b/test cases/java/9 jdk/src/meson.build
new file mode 100644
index 000000000..d1b9ee31c
--- /dev/null
+++ b/test cases/java/9 jdk/src/meson.build
@@ -0,0 +1,17 @@
+jdkjar = jar(
+  'jdkjar',
+  'com' / 'mesonbuild' / 'JdkTest.java',
+  main_class : 'com.mesonbuild.JdkTest',
+)
+
+test(
+  'jdktest',
+  java,
+  args: [
+    '-Djava.library.path=@0@'.format(fs.parent(jdkjava.full_path())),
+    '-jar',
+    jdkjar,
+  ],
+  protocol : 'exitcode',
+  depends : [jdkjava],
+)