test/langtools/jdk/javadoc/doclet/testGenericMethodLinkTaglet/TestGenericMethodLinkTaglet.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/*
 * @test
 * @bug      8188248
 * @summary  NullPointerException on generic methods
 * @library  /tools/lib ../lib
 * @modules jdk.javadoc/jdk.javadoc.internal.tool
 * @build    JavadocTester toolbox.ToolBox builder.ClassBuilder
 * @run main TestGenericMethodLinkTaglet
 */

import java.nio.file.Path;
import java.nio.file.Paths;

import builder.ClassBuilder;
import builder.ClassBuilder.MethodBuilder;
import toolbox.ToolBox;

public class TestGenericMethodLinkTaglet extends JavadocTester {

    final ToolBox tb;

    public static void main(String... args) throws Exception {
        TestGenericMethodLinkTaglet tester = new TestGenericMethodLinkTaglet();
        tester.runTests(m -> new Object[]{Paths.get(m.getName())});
    }

    TestGenericMethodLinkTaglet() {
        tb = new ToolBox();
    }

    @Test
    void test(Path base) throws Exception {
        Path srcDir = base.resolve("src");
        createTestClass(srcDir);

        Path outDir = base.resolve("out");
        javadoc("-Xdoclint:none",
                "-d", outDir.toString(),
                "-sourcepath", srcDir.toString(),
                "pkg");
        checkExit(Exit.OK);

        checkOutput("pkg/A.html", true,
                "<a href=\"A.html\" title=\"class in pkg\"><code>A</code></a>");
    }

    void createTestClass(Path srcDir) throws Exception {
        MethodBuilder method = MethodBuilder
                .parse("public <T> void m1(T t) {}")
                .setComments(
                    "@param <T> type param",
                    "@param t param {@link T}");

        new ClassBuilder(tb, "pkg.A")
                .setModifiers("public", "class")
                .addMembers(method)
                .write(srcDir);
    }

}