Prepare processor classpath masking for Java 9

PiperOrigin-RevId: 170022704

1 files changed, 140 insertions, 0 deletions

diff --git a/src/java_tools/buildjar/javatests/com/google/devtools/build/java/turbine/javac/AbstractJavacTurbineCompilationTest.java b/src/java_tools/buildjar/javatests/com/google/devtools/build/java/turbine/javac/AbstractJavacTurbineCompilationTest.java
new file mode 100644
index 0000000000..8a7e52f6fd
--- /dev/null
+++ b/src/java_tools/buildjar/javatests/com/google/devtools/build/java/turbine/javac/AbstractJavacTurbineCompilationTest.java
@@ -0,0 +1,140 @@
+// Copyright 2017 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.devtools.build.java.turbine.javac;
+
+import static com.google.common.collect.ImmutableList.toImmutableList;
+import static com.google.common.truth.Truth.assertThat;
+import static java.nio.charset.StandardCharsets.UTF_8;
+
+import com.google.common.base.Splitter;
+import com.google.common.io.ByteStreams;
+import com.google.devtools.build.java.turbine.javac.JavacTurbine.Result;
+import com.google.turbine.options.TurbineOptions;
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Enumeration;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+import java.util.jar.JarOutputStream;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.rules.TemporaryFolder;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.util.Textifier;
+import org.objectweb.asm.util.TraceClassVisitor;
+
+public abstract class AbstractJavacTurbineCompilationTest {
+
+  @Rule public final TemporaryFolder temp = new TemporaryFolder();
+
+  Path sourcedir;
+  List<Path> sources;
+  Path tempdir;
+  Path output;
+  Path outputDeps;
+
+  final TurbineOptions.Builder optionsBuilder = TurbineOptions.builder();
+
+  @Before
+  public void setUp() throws IOException {
+    sourcedir = temp.newFolder().toPath();
+    tempdir = temp.newFolder("_temp").toPath();
+    output = temp.newFile("out.jar").toPath();
+    outputDeps = temp.newFile("out.jdeps").toPath();
+
+    sources = new ArrayList<>();
+
+    optionsBuilder
+        .setOutput(output.toString())
+        .setTempDir(tempdir.toString())
+        .addBootClassPathEntries(
+            Splitter.on(':')
+                .splitToList(System.getProperty("sun.boot.class.path"))
+                .stream()
+                .map(e -> Paths.get(e).toAbsolutePath().toString())
+                .collect(toImmutableList()))
+        .setOutputDeps(outputDeps.toString())
+        .addAllJavacOpts(Arrays.asList("-source", "8", "-target", "8"))
+        .setTargetLabel("//test")
+        .setRuleKind("java_library");
+  }
+
+  protected void addSourceLines(String path, String... lines) throws IOException {
+    Path source = sourcedir.resolve(path);
+    sources.add(source);
+    Files.write(source, Arrays.asList(lines), UTF_8);
+  }
+
+  protected void compile() throws IOException {
+    optionsBuilder.addSources(sources.stream().map(p -> p.toString()).collect(toImmutableList()));
+    try (JavacTurbine turbine =
+        new JavacTurbine(
+            new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.err, UTF_8))),
+            optionsBuilder.build())) {
+      assertThat(turbine.compile()).isEqualTo(Result.OK_WITH_REDUCED_CLASSPATH);
+    }
+  }
+
+  protected Map<String, byte[]> collectOutputs() throws IOException {
+    return collectFiles(output);
+  }
+
+  static Map<String, byte[]> collectFiles(Path jar) throws IOException {
+    Map<String, byte[]> files = new LinkedHashMap<>();
+    try (JarFile jf = new JarFile(jar.toFile())) {
+      Enumeration<JarEntry> entries = jf.entries();
+      while (entries.hasMoreElements()) {
+        JarEntry entry = entries.nextElement();
+        files.put(entry.getName(), ByteStreams.toByteArray(jf.getInputStream(entry)));
+      }
+    }
+    return files;
+  }
+
+  static String textify(byte[] bytes) {
+    StringWriter sw = new StringWriter();
+    ClassReader cr = new ClassReader(bytes);
+    cr.accept(new TraceClassVisitor(null, new Textifier(), new PrintWriter(sw, true)), 0);
+    return sw.toString();
+  }
+
+  protected Path createClassJar(String jarName, Class<?>... classes) throws IOException {
+    Path jarPath = temp.newFile(jarName).toPath();
+    try (OutputStream os = Files.newOutputStream(jarPath);
+        JarOutputStream jos = new JarOutputStream(os)) {
+      for (Class<?> clazz : classes) {
+        String classFileName = clazz.getName().replace('.', '/') + ".class";
+        jos.putNextEntry(new JarEntry(classFileName));
+        try (InputStream is = getClass().getClassLoader().getResourceAsStream(classFileName)) {
+          ByteStreams.copy(is, jos);
+        }
+      }
+    }
+    return jarPath;
+  }
+}