Merge topic 'FindJNI-targets'

00c4f488f2 FindJNI: support Android NDK
171d45c039 FindJNI: added components and imported targets
35e92ec619 FindJNI: improved description

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Alex <leha-bot@yandex.ru>
Merge-request: !7069

13 files changed, 227 insertions, 0 deletions

diff --git a/Tests/FindJNI/AWT/AWTTgt.java b/Tests/FindJNI/AWT/AWTTgt.java
new file mode 100644
index 0000000..dce37f3
--- /dev/null
+++ b/Tests/FindJNI/AWT/AWTTgt.java
@@ -0,0 +1,7 @@
+class AWTTgt
+{
+    public static void main(String[] args)
+    {
+        System.loadLibrary("AWTTgt");
+    }
+}
diff --git a/Tests/FindJNI/AWT/AWTVar.java b/Tests/FindJNI/AWT/AWTVar.java
new file mode 100644
index 0000000..a918c28
--- /dev/null
+++ b/Tests/FindJNI/AWT/AWTVar.java
@@ -0,0 +1,7 @@
+class AWTVar
+{
+    public static void main(String[] args)
+    {
+        System.loadLibrary("AWTVar");
+    }
+}
diff --git a/Tests/FindJNI/AWT/CMakeLists.txt b/Tests/FindJNI/AWT/CMakeLists.txt
new file mode 100644
index 0000000..bdf49ea
--- /dev/null
+++ b/Tests/FindJNI/AWT/CMakeLists.txt
@@ -0,0 +1,31 @@
+cmake_minimum_required (VERSION 3.23)
+project (TestAWT)
+
+find_package (JNI REQUIRED COMPONENTS AWT)
+find_package (Java REQUIRED COMPONENTS Runtime Development)
+
+add_library (AWTTgt MODULE awt.cxx)
+target_link_libraries (AWTTgt PRIVATE JNI::AWT)
+
+add_library (AWTVar MODULE awt.cxx)
+target_include_directories (AWTVar PRIVATE ${JNI_INCLUDE_DIRS})
+target_link_libraries (AWTVar PRIVATE ${JNI_LIBRARIES})
+
+enable_testing ()
+
+foreach (test AWTTgt AWTVar)
+  add_test (NAME Compile${test} COMMAND ${Java_JAVAC_EXECUTABLE}
+    ${TestAWT_SOURCE_DIR}/${test}.java)
+  add_test (NAME Remove${test} COMMAND ${CMAKE_COMMAND} -E remove
+    ${TestAWT_SOURCE_DIR}/${test}.class)
+
+  add_test (NAME ${test} COMMAND ${Java_JAVA_EXECUTABLE}
+    -cp ${TestAWT_SOURCE_DIR}
+    -Djava.library.path=$<TARGET_FILE_DIR:${test}>
+    ${test}
+  )
+
+  set_tests_properties (Compile${test} PROPERTIES FIXTURES_SETUP Init${test})
+  set_tests_properties (Remove${test} PROPERTIES FIXTURES_CLEANUP Init${test})
+  set_tests_properties (${test} PROPERTIES FIXTURES_REQUIRED Init${test})
+endforeach ()
diff --git a/Tests/FindJNI/AWT/awt.cxx b/Tests/FindJNI/AWT/awt.cxx
new file mode 100644
index 0000000..64e7652
--- /dev/null
+++ b/Tests/FindJNI/AWT/awt.cxx
@@ -0,0 +1,23 @@
+#include <jawt.h>
+
+extern "C" JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved)
+{
+  void* tmp;
+
+  if (vm->GetEnv(&tmp, JNI_VERSION_1_2) != JNI_OK) {
+    return -1;
+  }
+
+  JAWT awt;
+  awt.version = JAWT_VERSION_1_3;
+
+  if (JAWT_GetAWT(static_cast<JNIEnv*>(tmp), &awt) == JNI_FALSE) {
+    return -1;
+  }
+
+  return JNI_VERSION_1_2;
+}
+
+extern "C" JNIEXPORT void JNICALL JNI_OnUnload(JavaVM* vm, void* reserved)
+{
+}
diff --git a/Tests/FindJNI/CMakeLists.txt b/Tests/FindJNI/CMakeLists.txt
new file mode 100644
index 0000000..0a0f756
--- /dev/null
+++ b/Tests/FindJNI/CMakeLists.txt
@@ -0,0 +1,12 @@
+foreach(test IN ITEMS Minimal JVM AWT)
+  add_test(NAME FindJNI.${test} COMMAND
+    ${CMAKE_CTEST_COMMAND} -C $<CONFIGURATION>
+    --build-and-test
+    "${CMake_SOURCE_DIR}/Tests/FindJNI/${test}"
+    "${CMake_BINARY_DIR}/Tests/FindJNI/${test}"
+    ${build_generator_args}
+    --build-project Test${test}
+    --build-options ${build_options}
+    --test-command ${CMAKE_CTEST_COMMAND} -V -C $<CONFIGURATION>
+  )
+endforeach()
diff --git a/Tests/FindJNI/JVM/CMakeLists.txt b/Tests/FindJNI/JVM/CMakeLists.txt
new file mode 100644
index 0000000..cead6ae
--- /dev/null
+++ b/Tests/FindJNI/JVM/CMakeLists.txt
@@ -0,0 +1,31 @@
+cmake_minimum_required (VERSION 3.23)
+project (TestJVM)
+
+find_package (JNI REQUIRED COMPONENTS JVM)
+find_package (Java REQUIRED COMPONENTS Runtime Development)
+
+add_library (JVMTgt MODULE jvm.cxx)
+target_link_libraries (JVMTgt PRIVATE JNI::JVM)
+
+add_library (JVMVar MODULE jvm.cxx)
+target_include_directories (JVMVar PRIVATE ${JNI_INCLUDE_DIRS})
+target_link_libraries (JVMVar PRIVATE ${JNI_LIBRARIES})
+
+enable_testing ()
+
+foreach (test JVMTgt JVMVar)
+  add_test (NAME Compile${test} COMMAND ${Java_JAVAC_EXECUTABLE}
+    ${TestJVM_SOURCE_DIR}/${test}.java)
+  add_test (NAME Remove${test} COMMAND ${CMAKE_COMMAND} -E remove
+    ${TestJVM_SOURCE_DIR}/${test}.class)
+
+  add_test (NAME ${test} COMMAND ${Java_JAVA_EXECUTABLE}
+    -cp ${TestJVM_SOURCE_DIR}
+    -Djava.library.path=$<TARGET_FILE_DIR:${test}>
+    ${test}
+  )
+
+  set_tests_properties (Compile${test} PROPERTIES FIXTURES_SETUP Init${test})
+  set_tests_properties (Remove${test} PROPERTIES FIXTURES_CLEANUP Init${test})
+  set_tests_properties (${test} PROPERTIES FIXTURES_REQUIRED Init${test})
+endforeach ()
diff --git a/Tests/FindJNI/JVM/JVMTgt.java b/Tests/FindJNI/JVM/JVMTgt.java
new file mode 100644
index 0000000..aa5dbb8
--- /dev/null
+++ b/Tests/FindJNI/JVM/JVMTgt.java
@@ -0,0 +1,7 @@
+class JVMTgt
+{
+    public static void main(String[] args)
+    {
+        System.loadLibrary("JVMTgt");
+    }
+}
diff --git a/Tests/FindJNI/JVM/JVMVar.java b/Tests/FindJNI/JVM/JVMVar.java
new file mode 100644
index 0000000..0e84a6f
--- /dev/null
+++ b/Tests/FindJNI/JVM/JVMVar.java
@@ -0,0 +1,7 @@
+class JVMVar
+{
+    public static void main(String[] args)
+    {
+        System.loadLibrary("JVMVar");
+    }
+}
diff --git a/Tests/FindJNI/JVM/jvm.cxx b/Tests/FindJNI/JVM/jvm.cxx
new file mode 100644
index 0000000..f79ccce
--- /dev/null
+++ b/Tests/FindJNI/JVM/jvm.cxx
@@ -0,0 +1,15 @@
+#include <jni.h>
+
+extern "C" JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved)
+{
+  jsize n = 0;
+  if (JNI_GetCreatedJavaVMs(nullptr, 0, &n) != JNI_OK || n <= 0) {
+    return -1;
+  }
+
+  return JNI_VERSION_1_2;
+}
+
+extern "C" JNIEXPORT void JNICALL JNI_OnUnload(JavaVM* vm, void* reserved)
+{
+}
diff --git a/Tests/FindJNI/Minimal/CMakeLists.txt b/Tests/FindJNI/Minimal/CMakeLists.txt
new file mode 100644
index 0000000..f499c0a
--- /dev/null
+++ b/Tests/FindJNI/Minimal/CMakeLists.txt
@@ -0,0 +1,35 @@
+cmake_minimum_required (VERSION 3.23)
+project (TestMinimal)
+
+set (CMAKE_CXX_VISIBILITY_PRESET hidden)
+
+find_package (JNI REQUIRED)
+find_package (Java REQUIRED COMPONENTS Runtime Development)
+
+add_library (MinimalTgt MODULE minimal.cxx)
+target_link_libraries (MinimalTgt PRIVATE JNI::JNI)
+
+add_library (MinimalVar MODULE minimal.cxx)
+target_include_directories (MinimalVar PRIVATE ${JNI_INCLUDE_DIRS})
+target_link_libraries (MinimalVar PRIVATE ${JNI_LIBRARIES})
+
+enable_testing ()
+
+foreach (test MinimalTgt MinimalVar)
+  add_test (NAME Compile${test} COMMAND ${Java_JAVAC_EXECUTABLE}
+    ${TestMinimal_SOURCE_DIR}/${test}.java)
+  add_test (NAME Remove${test} COMMAND ${CMAKE_COMMAND} -E remove
+    ${TestMinimal_SOURCE_DIR}/${test}.class)
+
+  add_test (NAME ${test} COMMAND ${Java_JAVA_EXECUTABLE}
+    -cp ${TestMinimal_SOURCE_DIR}
+    -Djava.library.path=$<TARGET_FILE_DIR:${test}>
+    ${test}
+  )
+
+  set_tests_properties (Compile${test} PROPERTIES FIXTURES_SETUP Init${test})
+  set_tests_properties (Remove${test} PROPERTIES FIXTURES_CLEANUP Init${test})
+  set_tests_properties (${test} PROPERTIES FIXTURES_REQUIRED Init${test})
+
+  set_tests_properties (${test} PROPERTIES PASS_REGULAR_EXPRESSION "^FindJNI\n$")
+endforeach ()
diff --git a/Tests/FindJNI/Minimal/MinimalTgt.java b/Tests/FindJNI/Minimal/MinimalTgt.java
new file mode 100644
index 0000000..d9c98b5
--- /dev/null
+++ b/Tests/FindJNI/Minimal/MinimalTgt.java
@@ -0,0 +1,7 @@
+class MinimalTgt
+{
+    public static void main(String[] args)
+    {
+        System.loadLibrary("MinimalTgt");
+    }
+}
diff --git a/Tests/FindJNI/Minimal/MinimalVar.java b/Tests/FindJNI/Minimal/MinimalVar.java
new file mode 100644
index 0000000..9f05c74
--- /dev/null
+++ b/Tests/FindJNI/Minimal/MinimalVar.java
@@ -0,0 +1,7 @@
+class MinimalVar
+{
+    public static void main(String[] args)
+    {
+        System.loadLibrary("MinimalVar");
+    }
+}
diff --git a/Tests/FindJNI/Minimal/minimal.cxx b/Tests/FindJNI/Minimal/minimal.cxx
new file mode 100644
index 0000000..4423613
--- /dev/null
+++ b/Tests/FindJNI/Minimal/minimal.cxx
@@ -0,0 +1,38 @@
+#include <cassert>
+
+#include <jni.h>
+
+extern "C" JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved)
+{
+  void* tmp;
+  if (vm->GetEnv(&tmp, JNI_VERSION_1_2) != JNI_OK) {
+    return -1;
+  }
+
+  // The following lines do:
+  //
+  //    System.out.println("FindJNI");
+  //
+  JNIEnv* env = static_cast<JNIEnv*>(tmp);
+
+  jclass clzS = env->FindClass("java/lang/System");
+  jclass clzP = env->FindClass("java/io/PrintStream");
+
+  jfieldID outF = env->GetStaticFieldID(clzS, "out", "Ljava/io/PrintStream;");
+  jobject out = env->GetStaticObjectField(clzS, outF);
+  jmethodID println =
+    env->GetMethodID(clzP, "println", "(Ljava/lang/String;)V");
+
+  env->CallVoidMethod(out, println, env->NewStringUTF("FindJNI"));
+
+  return JNI_VERSION_1_2;
+}
+
+extern "C" JNIEXPORT void JNICALL JNI_OnUnload(JavaVM* vm, void* reserved)
+{
+  void* env;
+  jint result = vm->GetEnv(&env, JNI_VERSION_1_2);
+  assert(result == JNI_OK);
+
+  assert(static_cast<JNIEnv*>(env)->GetVersion() == JNI_VERSION_1_2);
+}