// Create a Layer over the boot layer.
// Define modules within this layer to test access between
// publically defined classes within packages of those modules.
public void createLayerOnBoot() throws Throwable {
// Define module: m1
// Can read: java.base, m2
// Packages: p1
// Packages exported: p1 is exported unqualifiedly
ModuleDescriptor descriptor_m1 =
new ModuleDescriptor.Builder("m1")
.requires("java.base")
.requires("m2")
.exports("p1")
.build();
// Define module: m2
// Can read: java.base
// Packages: p2
// Packages exported: p2 is exported unqualifiedly
ModuleDescriptor descriptor_m2 =
new ModuleDescriptor.Builder("m2").requires("java.base").exports("p2").build();
// Set up a ModuleFinder containing all modules for this layer.
ModuleFinder finder = ModuleLibrary.of(descriptor_m1, descriptor_m2);
// Resolves "m1"
Configuration cf =
Layer.boot().configuration().resolveRequires(finder, ModuleFinder.of(), Set.of("m1"));
// map each module to the same class loader for this test
Map<String, ClassLoader> map = new HashMap<>();
map.put("m1", MySameClassLoader.loader1);
map.put("m2", MySameClassLoader.loader1);
// Create Layer that contains m1 & m2
Layer layer = Layer.boot().defineModules(cf, map::get);
assertTrue(layer.findLoader("m1") == MySameClassLoader.loader1);
assertTrue(layer.findLoader("m2") == MySameClassLoader.loader1);
// now use the same loader to load class p1.c1
Class p1_c1_class = MySameClassLoader.loader1.loadClass("p1.c1");
try {
p1_c1_class.newInstance();
} catch (IllegalAccessError e) {
throw new RuntimeException(
"Test Failed, an IAE should not be thrown since p2 is exported unqualifiedly.");
}
}
