Roll forward of commit 500175fcfb37953f50cf0869df164902755807f2: Don't include absolute paths in blaze IDE
artifacts

NEW: Fixed bazel java_test rules

Rollback of commit a4ba24e286b7e9a7a09e333d8eb64a8cf7e81895.

*** Reason for rollback ***

Rollforward, fixing bazel java_test rules

*** Original change description ***

Automated [] rollback of commit 500175fcfb37953f50cf0869df164902755807f2.

*** Reason for rollback ***

Breaks Bazel Build

http://ci.bazel.io/job/Bazel/JAVA_VERSION=1.7,PLATFORM_NAME=linux-x86_64/356/console

*** Original change description ***

Don't include absolute paths in blaze IDE artifacts

RELNOTES: Don't include absolute paths in blaze IDE artifacts

--
MOS_MIGRATED_REVID=114751236
diff --git a/src/main/java/com/google/devtools/build/lib/ideinfo/AndroidStudioInfoAspect.java b/src/main/java/com/google/devtools/build/lib/ideinfo/AndroidStudioInfoAspect.java
index f6d4856..472bef6 100644
--- a/src/main/java/com/google/devtools/build/lib/ideinfo/AndroidStudioInfoAspect.java
+++ b/src/main/java/com/google/devtools/build/lib/ideinfo/AndroidStudioInfoAspect.java
@@ -20,8 +20,10 @@
 import static com.google.devtools.build.lib.packages.BuildType.LABEL;
 
 import com.google.common.base.Function;
+import com.google.common.base.Joiner;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
 import com.google.common.io.ByteSource;
 import com.google.devtools.build.lib.Constants;
@@ -56,6 +58,7 @@
 import com.google.devtools.build.lib.packages.AspectDefinition;
 import com.google.devtools.build.lib.packages.AspectParameters;
 import com.google.devtools.build.lib.packages.BuildType;
+import com.google.devtools.build.lib.packages.Package;
 import com.google.devtools.build.lib.packages.Rule;
 import com.google.devtools.build.lib.rules.android.AndroidCommon;
 import com.google.devtools.build.lib.rules.android.AndroidIdeInfoProvider;
@@ -303,6 +306,9 @@
             .getPath()
             .toString());
 
+    outputBuilder.setBuildFileArtifactLocation(
+        makeArtifactLocation(ruleContext.getRule().getPackage()));
+
     outputBuilder.setKind(ruleKind);
 
     if (ruleKind == Kind.JAVA_LIBRARY
@@ -373,8 +379,7 @@
         .setExecutable(ruleContext.getExecutablePrerequisite("$packageParser", Mode.HOST))
         .setCommandLine(CustomCommandLine.builder()
             .addExecPath("--output_manifest", packageManifest)
-            .addJoinStrings("--sources_absolute_paths", ":", Artifact.toAbsolutePaths(sourceFiles))
-            .addJoinExecPaths("--sources_execution_paths", ":", sourceFiles)
+            .addJoinStrings("--sources", ":", toSerializedArtifactLocations(sourceFiles))
             .build())
         .useParameterFile(ParameterFileType.SHELL_QUOTED)
         .setProgressMessage("Parsing java package strings for " + ruleContext.getRule())
@@ -382,6 +387,25 @@
         .build(ruleContext);
   }
 
+  private static Iterable<String> toSerializedArtifactLocations(Iterable<Artifact> artifacts) {
+    return Iterables.transform(
+        Iterables.filter(artifacts, Artifact.MIDDLEMAN_FILTER),
+        PACKAGE_PARSER_SERIALIZER);
+  }
+
+  private static final Function<Artifact, String> PACKAGE_PARSER_SERIALIZER =
+      new Function<Artifact, String>() {
+        @Override
+        public String apply(Artifact artifact) {
+          ArtifactLocation location = makeArtifactLocation(artifact);
+          return Joiner.on(",").join(
+              location.getRootExecutionPathFragment(),
+              location.getRelativePath(),
+              location.getRootPath()
+          );
+        }
+      };
+
   private static Artifact derivedArtifact(ConfiguredTarget base, RuleContext ruleContext,
       String suffix) {
     BuildConfiguration configuration = ruleContext.getConfiguration();
@@ -471,16 +495,28 @@
   }
 
   private static ArtifactLocation makeArtifactLocation(Artifact artifact) {
+    return makeArtifactLocation(artifact.getRoot(), artifact.getRootRelativePath());
+  }
+
+  private static ArtifactLocation makeArtifactLocation(Package pkg) {
+    Root root = Root.asSourceRoot(pkg.getSourceRoot());
+    PathFragment relativePath = pkg.getBuildFile().getPath().relativeTo(root.getPath());
+    return makeArtifactLocation(root, relativePath);
+  }
+
+  private static ArtifactLocation makeArtifactLocation(Root root, PathFragment relativePath) {
     return ArtifactLocation.newBuilder()
-        .setRootPath(artifact.getRoot().getPath().toString())
-        .setRelativePath(artifact.getRootRelativePathString())
-        .setIsSource(artifact.isSourceArtifact())
+        .setRootPath(root.getPath().toString())
+        .setRootExecutionPathFragment(root.getExecPath().toString())
+        .setRelativePath(relativePath.toString())
+        .setIsSource(root.isSourceRoot())
         .build();
   }
 
   private static ArtifactLocation makeArtifactLocation(SourceDirectory resourceDir) {
     return ArtifactLocation.newBuilder()
         .setRootPath(resourceDir.getRootPath().toString())
+        .setRootExecutionPathFragment(resourceDir.getRootExecutionPathFragment().toString())
         .setRelativePath(resourceDir.getRelativePath().toString())
         .setIsSource(resourceDir.isSource())
         .build();
diff --git a/src/main/java/com/google/devtools/build/lib/rules/android/AndroidIdeInfoProvider.java b/src/main/java/com/google/devtools/build/lib/rules/android/AndroidIdeInfoProvider.java
index 7028a45..0cd44ad 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/android/AndroidIdeInfoProvider.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/android/AndroidIdeInfoProvider.java
@@ -13,6 +13,7 @@
 // limitations under the License.
 package com.google.devtools.build.lib.rules.android;
 
+import com.google.common.annotations.VisibleForTesting;
 import com.google.common.collect.ImmutableCollection;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Iterables;
@@ -39,11 +40,29 @@
   @Immutable
   public static class SourceDirectory {
     final PathFragment relativePath;
+    final PathFragment rootExecutionPathFragment;
     final PathFragment rootPath;
     final boolean isSource;
 
-    public SourceDirectory(PathFragment rootPath, PathFragment relativePath, boolean isSource) {
+    @VisibleForTesting
+    public static SourceDirectory fromSourceRoot(
+        PathFragment rootPath,
+        PathFragment relativePath) {
+      return new SourceDirectory(rootPath, PathFragment.EMPTY_FRAGMENT, relativePath, true);
+    }
+
+    public static SourceDirectory fromRoot(Root root, PathFragment relativePath) {
+      return new SourceDirectory(
+          root.getPath().asFragment(), root.getExecPath(), relativePath, root.isSourceRoot());
+    }
+
+    private SourceDirectory(
+        PathFragment rootPath,
+        PathFragment rootExecutionPathFragment,
+        PathFragment relativePath,
+        boolean isSource) {
       this.rootPath = rootPath;
+      this.rootExecutionPathFragment = rootExecutionPathFragment;
       this.relativePath = relativePath;
       this.isSource = isSource;
     }
@@ -62,6 +81,14 @@
       return rootPath;
     }
 
+    /**
+     * The path from the execution root to the actual root. For source roots, this returns
+     * the empty fragment, {@link Root#getExecPath()}.
+     */
+    public PathFragment getRootExecutionPathFragment() {
+      return rootExecutionPathFragment;
+    }
+
     /** Indicates if the directory is in the gen files tree. */
     public boolean isSource() {
       return isSource;
@@ -69,7 +96,7 @@
 
     @Override
     public int hashCode() {
-      return Objects.hash(relativePath, rootPath, isSource);
+      return Objects.hash(relativePath, rootPath, rootExecutionPathFragment, isSource);
     }
 
     @Override
@@ -77,6 +104,7 @@
       if (other instanceof SourceDirectory) {
         SourceDirectory otherDir = (SourceDirectory) other;
         return Objects.equals(rootPath, otherDir.rootPath)
+            && Objects.equals(rootExecutionPathFragment, otherDir.rootExecutionPathFragment)
             && Objects.equals(relativePath, otherDir.relativePath)
             && Objects.equals(isSource, otherDir.isSource);
       }
@@ -86,7 +114,7 @@
     @Override
     public String toString() {
       return "SourceDirectory [relativePath=" + relativePath + ", rootPath=" + rootPath
-          + ", isSource=" + isSource + "]";
+          + ", executionRootPrefix=" + rootExecutionPathFragment + ", isSource=" + isSource + "]";
     }
   }
 
@@ -179,10 +207,9 @@
     private void addIdlDirs(Collection<Artifact> idlArtifacts) {
       for (Artifact idl : idlArtifacts) {
         this.idlDirs.add(
-            new SourceDirectory(
-                idl.getRoot().getPath().asFragment(),
-                idl.getRootRelativePath().getParentDirectory(),
-                idl.isSourceArtifact()));
+            SourceDirectory.fromRoot(
+                idl.getRoot(),
+                idl.getRootRelativePath().getParentDirectory()));
       }
     }
 
@@ -199,10 +226,9 @@
     public Builder addResourceSource(Artifact resource) {
       PathFragment resourceDir = LocalResourceContainer.Builder.findResourceDir(resource);
       resourceDirs.add(
-          new SourceDirectory(
-              resource.getRoot().getPath().asFragment(),
-              trimTo(resource.getRootRelativePath(), resourceDir),
-              resource.isSourceArtifact()));
+          SourceDirectory.fromRoot(
+              resource.getRoot(),
+              trimTo(resource.getRootRelativePath(), resourceDir)));
       return this;
     }
 
@@ -222,10 +248,9 @@
 
     public Builder addAssetSource(Artifact asset, PathFragment assetDir) {
       assetDirs.add(
-          new SourceDirectory(
-              asset.getRoot().getPath().asFragment(),
-              trimTo(asset.getRootRelativePath(), assetDir),
-              asset.isSourceArtifact()));
+          SourceDirectory.fromRoot(
+              asset.getRoot(),
+              trimTo(asset.getRootRelativePath(), assetDir)));
       return this;
     }
 
diff --git a/src/main/protobuf/android_studio_ide_info.proto b/src/main/protobuf/android_studio_ide_info.proto
index 0be192e..0b099c6 100644
--- a/src/main/protobuf/android_studio_ide_info.proto
+++ b/src/main/protobuf/android_studio_ide_info.proto
@@ -22,9 +22,14 @@
 option java_generate_equals_and_hash = true;
 
 message ArtifactLocation {
-  string root_path = 1;
+  // deprecated -- this is not machine agnostic and will be removed in a future release
+  string root_path = 1 [deprecated=true];
+
   string relative_path = 2;
   bool is_source = 3;
+
+  // set for derived artifacts (isSource = false)
+  string root_execution_path_fragment = 4;
 }
 
 message LibraryArtifact {
@@ -73,7 +78,8 @@
 
   string label = 1;
   Kind kind = 2;
-  string build_file = 3;
+  // deprecated -- this is not machine agnostic and will be removed in a future release
+  string build_file = 3 [deprecated=true];
   repeated string dependencies = 4;
 
   // kind is ANDROID_SDK
@@ -85,4 +91,6 @@
 
   repeated string tags = 9;
   repeated string runtime_deps = 10;
+
+  ArtifactLocation build_file_artifact_location = 11;
 }
diff --git a/src/main/protobuf/package_manifest.proto b/src/main/protobuf/package_manifest.proto
index dd5f4fc..b714f8a 100644
--- a/src/main/protobuf/package_manifest.proto
+++ b/src/main/protobuf/package_manifest.proto
@@ -21,9 +21,23 @@
 
 option java_generate_equals_and_hash = true;
 
+// TODO(bazel-team): support proto => proto dependencies and remove this duplication
+message ArtifactLocation {
+  // deprecated -- this is not machine agnostic and will be removed in a future release
+  string root_path = 1 [deprecated=true];
+
+  string relative_path = 2;
+  bool is_source = 3;
+
+  // set for derived artifacts (isSource = false)
+  string root_execution_path_fragment = 4;
+}
+
 message JavaSourcePackage {
-  string absolute_path = 1;
+  // deprecated -- this is not machine agnostic and will be removed in a future release
+  string absolute_path = 1 [deprecated=true];
   string package_string = 2;
+  ArtifactLocation artifact_location = 3;
 }
 
 message PackageManifest {
diff --git a/src/test/java/com/google/devtools/build/android/ideinfo/ArtifactLocationConverterTest.java b/src/test/java/com/google/devtools/build/android/ideinfo/ArtifactLocationConverterTest.java
new file mode 100644
index 0000000..0ac6311
--- /dev/null
+++ b/src/test/java/com/google/devtools/build/android/ideinfo/ArtifactLocationConverterTest.java
@@ -0,0 +1,96 @@
+// Copyright 2016 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.android.ideinfo;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.junit.Assert.fail;
+
+import com.google.common.base.Joiner;
+import com.google.devtools.build.lib.ideinfo.androidstudio.PackageManifestOuterClass.ArtifactLocation;
+import com.google.devtools.common.options.OptionsParsingException;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/**
+ * Tests {@link ArtifactLocationConverter}.
+ */
+@RunWith(JUnit4.class)
+public class ArtifactLocationConverterTest {
+
+  private ArtifactLocationConverter converter;
+
+  @Before
+  public final void init() throws Exception  {
+    converter = new ArtifactLocationConverter();
+  }
+
+  @Test
+  public void testConverterSourceArtifact() throws Exception {
+    ArtifactLocation parsed = converter.convert(
+        Joiner.on(",").join("", "test.java", "/usr/local/code")
+    );
+    assertThat(parsed).isEqualTo(
+        ArtifactLocation.newBuilder()
+        .setRootPath("/usr/local/code")
+        .setRelativePath("test.java")
+        .setIsSource(true)
+        .build());
+  }
+
+  @Test
+  public void testConverterDerivedArtifact() throws Exception {
+    ArtifactLocation parsed = converter.convert(
+        Joiner.on(",").join("bin", "java/com/test.java", "/usr/local/_tmp/code/bin")
+    );
+    assertThat(parsed).isEqualTo(
+        ArtifactLocation.newBuilder()
+            .setRootPath("/usr/local/_tmp/code/bin")
+            .setRootExecutionPathFragment("bin")
+            .setRelativePath("java/com/test.java")
+            .setIsSource(false)
+            .build());
+  }
+
+  @Test
+  public void testInvalidFormatFails() throws Exception {
+    assertFails("/root", "Expected either 2 or 3 comma-separated paths");
+    assertFails("/root,exec,rel,extra", "Expected either 2 or 3 comma-separated paths");
+  }
+
+  @Test
+  public void testFutureFormat() throws Exception {
+    ArtifactLocation parsed = converter.convert("bin/out,java/com/test.java");
+    assertThat(parsed).isEqualTo(
+        ArtifactLocation.newBuilder()
+            .setRootExecutionPathFragment("bin/out")
+            .setRelativePath("java/com/test.java")
+            .setIsSource(false)
+            .build());
+  }
+
+
+  private void assertFails(String input, String expectedError) {
+    try {
+      new ArtifactLocationConverter().convert(input);
+      fail();
+    } catch (OptionsParsingException e) {
+      assertThat(e).hasMessage(expectedError);
+    }
+  }
+}
+
diff --git a/src/test/java/com/google/devtools/build/android/ideinfo/BUILD b/src/test/java/com/google/devtools/build/android/ideinfo/BUILD
index 79f75dd..f268b1e 100644
--- a/src/test/java/com/google/devtools/build/android/ideinfo/BUILD
+++ b/src/test/java/com/google/devtools/build/android/ideinfo/BUILD
@@ -1,8 +1,9 @@
 java_test(
     name = "PackageParserTest",
     size = "small",
-    srcs = glob(["*.java"]),
+    srcs = ["PackageParserTest.java"],
     deps = [
+        "//src/main/java/com/google/devtools/common/options",
         "//src/main/protobuf:package_manifest_proto",
         "//src/tools/android/java/com/google/devtools/build/android/ideinfo:package_parser_lib",
         "//third_party:guava",
@@ -12,3 +13,18 @@
         "//third_party:truth",
     ],
 )
+
+java_test(
+    name = "ArtifactLocationConverterTest",
+    size = "small",
+    srcs = ["ArtifactLocationConverterTest.java"],
+    deps = [
+        "//src/main/java/com/google/devtools/common/options",
+        "//src/main/protobuf:package_manifest_proto",
+        "//src/tools/android/java/com/google/devtools/build/android/ideinfo:package_parser_lib",
+        "//third_party:guava",
+        "//third_party:junit4",
+        "//third_party:protobuf",
+        "//third_party:truth",
+    ],
+)
diff --git a/src/test/java/com/google/devtools/build/android/ideinfo/PackageParserTest.java b/src/test/java/com/google/devtools/build/android/ideinfo/PackageParserTest.java
index a02ac30..3f466d6 100644
--- a/src/test/java/com/google/devtools/build/android/ideinfo/PackageParserTest.java
+++ b/src/test/java/com/google/devtools/build/android/ideinfo/PackageParserTest.java
@@ -17,9 +17,11 @@
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.fail;
 
+import com.google.common.base.Joiner;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
+import com.google.devtools.build.lib.ideinfo.androidstudio.PackageManifestOuterClass.ArtifactLocation;
 import com.google.protobuf.MessageLite;
 
 import org.junit.Before;
@@ -35,6 +37,7 @@
 import java.io.StringWriter;
 import java.io.UnsupportedEncodingException;
 import java.nio.charset.StandardCharsets;
+import java.nio.file.InvalidPathException;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.List;
@@ -50,12 +53,16 @@
 
   private static class MockPackageParserIoProvider extends PackageParserIoProvider {
     private final Map<Path, InputStream> sources = Maps.newHashMap();
+    private final List<ArtifactLocation> sourceLocations = Lists.newArrayList();
     private StringWriter writer = new StringWriter();
 
-    public MockPackageParserIoProvider addSource(String filePath, String javaSrc) {
+    public MockPackageParserIoProvider addSource(ArtifactLocation source, String javaSrc) {
       try {
-        sources.put(Paths.get(filePath), new ByteArrayInputStream(javaSrc.getBytes("UTF-8")));
-      } catch (UnsupportedEncodingException e) {
+        Path path = Paths.get(source.getRootExecutionPathFragment(), source.getRelativePath());
+        sources.put(path, new ByteArrayInputStream(javaSrc.getBytes("UTF-8")));
+        sourceLocations.add(source);
+
+      } catch (UnsupportedEncodingException | InvalidPathException e) {
         fail(e.getMessage());
       }
       return this;
@@ -63,11 +70,12 @@
 
     public void reset() {
       sources.clear();
+      sourceLocations.clear();
       writer = new StringWriter();
     }
 
-    public List<Path> getPaths() {
-      return Lists.newArrayList(sources.keySet());
+    public List<ArtifactLocation> getSourceLocations() {
+      return Lists.newArrayList(sourceLocations);
     }
 
     @Nonnull
@@ -83,6 +91,21 @@
     }
   }
 
+  private static final ArtifactLocation DUMMY_SOURCE_ARTIFACT =
+      ArtifactLocation.newBuilder()
+          .setRootPath("/usr/local/google/code")
+          .setRelativePath("java/com/google/Foo.java")
+          .setIsSource(true)
+          .build();
+
+  private static final ArtifactLocation DUMMY_DERIVED_ARTIFACT =
+      ArtifactLocation.newBuilder()
+          .setRootPath("/usr/local/_tmp/code/bin")
+          .setRootExecutionPathFragment("bin")
+          .setRelativePath("java/com/google/Bla.java")
+          .setIsSource(false)
+          .build();
+
   private MockPackageParserIoProvider mockIoProvider;
   private PackageParser parser;
 
@@ -92,9 +115,9 @@
     parser = new PackageParser(mockIoProvider);
   }
 
-  private Map<Path, String> parsePackageStrings() throws Exception {
-    List<Path> paths = mockIoProvider.getPaths();
-    return parser.parsePackageStrings(paths, paths);
+  private Map<ArtifactLocation, String> parsePackageStrings() throws Exception {
+    List<ArtifactLocation> sources = mockIoProvider.getSourceLocations();
+    return parser.parsePackageStrings(sources);
   }
 
   @Test
@@ -102,91 +125,205 @@
     String[] args = new String[] {
         "--output_manifest",
         "/tmp/out.manifest",
-        "--sources_absolute_paths",
-        "/path/test1.java:/path/test2.java",
-        "--sources_execution_paths",
-        "/path/test1.java:/path/test2.java"
-    };
+        "--sources",
+        Joiner.on(":").join(
+          ",java/com/google/Foo.java,/usr/local/google/code",
+          "bin,java/com/google/Bla.java,/usr/local/_tmp/code/bin"
+        )};
     PackageParser.PackageParserOptions options = PackageParser.parseArgs(args);
     assertThat(options.outputManifest.toString()).isEqualTo("/tmp/out.manifest");
-    assertThat(options.sourcesAbsolutePaths).hasSize(2);
-    assertThat(options.sourcesExecutionPaths).hasSize(2);
-    assertThat(options.sourcesAbsolutePaths.get(0).toString()).isEqualTo("/path/test1.java");
-    assertThat(options.sourcesAbsolutePaths.get(1).toString()).isEqualTo("/path/test2.java");
+    assertThat(options.sources).hasSize(2);
+    assertThat(options.sources.get(0)).isEqualTo(
+        ArtifactLocation.newBuilder()
+            .setRootPath("/usr/local/google/code")
+            .setRelativePath("java/com/google/Foo.java")
+            .setIsSource(true)
+            .build());
+    assertThat(options.sources.get(1)).isEqualTo(
+        ArtifactLocation.newBuilder()
+            .setRootPath("/usr/local/_tmp/code/bin")
+            .setRootExecutionPathFragment("bin")
+            .setRelativePath("java/com/google/Bla.java")
+            .setIsSource(false)
+            .build());
   }
 
   @Test
   public void testReadNoSources() throws Exception {
-    Map<Path, String> map = parsePackageStrings();
+    Map<ArtifactLocation, String> map = parsePackageStrings();
     assertThat(map).isEmpty();
   }
 
   @Test
   public void testSingleRead() throws Exception {
     mockIoProvider
-        .addSource("java/com/google/Bla.java",
-            "package com.test;\n public class Bla {}\"");
-    Map<Path, String> map = parsePackageStrings();
+        .addSource(
+            DUMMY_SOURCE_ARTIFACT,
+            "package com.google;\n public class Bla {}\"");
+    Map<ArtifactLocation, String> map = parsePackageStrings();
     assertThat(map).hasSize(1);
-    assertThat(map).containsEntry(Paths.get("java/com/google/Bla.java"), "com.test");
+    assertThat(map).containsEntry(
+        DUMMY_SOURCE_ARTIFACT,
+        "com.google");
   }
 
   @Test
   public void testMultiRead() throws Exception {
     mockIoProvider
-        .addSource("java/com/google/Bla.java",
+        .addSource(
+            DUMMY_SOURCE_ARTIFACT,
             "package com.test;\n public class Bla {}\"")
-        .addSource("java/com/other/Foo.java",
+        .addSource(
+            DUMMY_DERIVED_ARTIFACT,
             "package com.other;\n public class Foo {}\"");
-    Map<Path, String> map = parsePackageStrings();
+    Map<ArtifactLocation, String> map = parsePackageStrings();
     assertThat(map).hasSize(2);
-    assertThat(map).containsEntry(Paths.get("java/com/google/Bla.java"), "com.test");
-    assertThat(map).containsEntry(Paths.get("java/com/other/Foo.java"), "com.other");
+    assertThat(map).containsEntry(
+        DUMMY_SOURCE_ARTIFACT,
+        "com.test");
+    assertThat(map).containsEntry(
+        DUMMY_DERIVED_ARTIFACT,
+        "com.other");
   }
 
   @Test
   public void testReadSomeInvalid() throws Exception {
     mockIoProvider
-        .addSource("java/com/google/Bla.java",
+        .addSource(
+            DUMMY_SOURCE_ARTIFACT,
             "package %com.test;\n public class Bla {}\"")
-        .addSource("java/com/other/Foo.java",
+        .addSource(
+            DUMMY_DERIVED_ARTIFACT,
             "package com.other;\n public class Foo {}\"");
-    Map<Path, String> map = parsePackageStrings();
+    Map<ArtifactLocation, String> map = parsePackageStrings();
     assertThat(map).hasSize(1);
-    assertThat(map).containsEntry(Paths.get("java/com/other/Foo.java"), "com.other");
+    assertThat(map).containsEntry(
+        DUMMY_DERIVED_ARTIFACT,
+        "com.other");
   }
 
   @Test
   public void testReadAllInvalid() throws Exception {
     mockIoProvider
-        .addSource("java/com/google/Bla.java",
+        .addSource(
+            DUMMY_SOURCE_ARTIFACT,
             "#package com.test;\n public class Bla {}\"")
-        .addSource("java/com/other/Foo.java",
+        .addSource(
+            DUMMY_DERIVED_ARTIFACT,
             "package com.other\n public class Foo {}\"");
-    Map<Path, String> map = parsePackageStrings();
+    Map<ArtifactLocation, String> map = parsePackageStrings();
     assertThat(map).isEmpty();
   }
 
   @Test
   public void testWriteEmptyMap() throws Exception {
     parser.writeManifest(
-        Maps.<Path, String> newHashMap(), Paths.get("/java/com/google/test.manifest"));
+        Maps.<ArtifactLocation, String> newHashMap(),
+        Paths.get("/java/com/google/test.manifest"),
+        false);
     assertThat(mockIoProvider.writer.toString()).isEmpty();
   }
 
   @Test
   public void testWriteMap() throws Exception {
-    Map<Path, String> map = ImmutableMap.of(
-        Paths.get("/java/com/google/Bla.java"), "com.google",
-        Paths.get("/java/com/other/Foo.java"), "com.other"
+    Map<ArtifactLocation, String> map = ImmutableMap.of(
+        DUMMY_SOURCE_ARTIFACT,
+        "com.google",
+        DUMMY_DERIVED_ARTIFACT,
+        "com.other"
     );
-    parser.writeManifest(map, Paths.get("/java/com/google/test.manifest"));
+    parser.writeManifest(map, Paths.get("/java/com/google/test.manifest"), false);
 
     String writtenString = mockIoProvider.writer.toString();
-    assertThat(writtenString).contains("absolute_path: \"/java/com/google/Bla.java\"");
+    assertThat(writtenString).contains(String.format(
+        "root_path: \"%s\"",
+        DUMMY_SOURCE_ARTIFACT.getRootPath()));
+    assertThat(writtenString).contains(String.format(
+        "relative_path: \"%s\"",
+        DUMMY_SOURCE_ARTIFACT.getRelativePath()));
     assertThat(writtenString).contains("package_string: \"com.google\"");
-    assertThat(writtenString).contains("absolute_path: \"/java/com/other/Foo.java\"");
+
+    assertThat(writtenString).contains(String.format(
+        "root_path: \"%s\"",
+        DUMMY_DERIVED_ARTIFACT.getRootPath()));
+    assertThat(writtenString).contains(String.format(
+        "root_execution_path_fragment: \"%s\"",
+        DUMMY_DERIVED_ARTIFACT.getRootExecutionPathFragment()));
+    assertThat(writtenString).contains(String.format(
+        "relative_path: \"%s\"",
+        DUMMY_DERIVED_ARTIFACT.getRelativePath()));
     assertThat(writtenString).contains("package_string: \"com.other\"");
   }
 
+  @Test
+  public void testHandlesOldFormat() throws Exception {
+    String[] args = new String[] {
+        "--output_manifest",
+        "/tmp/out.manifest",
+        "--sources_absolute_paths",
+        "/usr/local/code/java/com/google/Foo.java:/usr/local/code/java/com/google/Bla.java",
+        "--sources_execution_paths",
+        "java/com/google/Foo.java:java/com/google/Bla.java"
+    };
+    PackageParser.PackageParserOptions options = PackageParser.parseArgs(args);
+    assertThat(options.outputManifest.toString()).isEqualTo("/tmp/out.manifest");
+    assertThat(options.sourcesAbsolutePaths.get(0).toString())
+        .isEqualTo("/usr/local/code/java/com/google/Foo.java");
+    assertThat(options.sourcesAbsolutePaths.get(1).toString())
+        .isEqualTo("/usr/local/code/java/com/google/Bla.java");
+
+    PackageParser.convertFromOldFormat(options);
+    assertThat(options.sources).hasSize(2);
+    assertThat(options.sources.get(0)).isEqualTo(
+        ArtifactLocation.newBuilder()
+            .setRootPath("/usr/local/code/")
+            .setRelativePath("java/com/google/Foo.java")
+            .build());
+
+    mockIoProvider
+        .addSource(options.sources.get(0),
+            "package com.test;\n public class Bla {}\"")
+        .addSource(options.sources.get(1),
+            "package com.other;\n public class Foo {}\"");
+
+    Map<ArtifactLocation, String> map = parser.parsePackageStrings(options.sources);
+    assertThat(map).hasSize(2);
+    assertThat(map).containsEntry(options.sources.get(0), "com.test");
+    assertThat(map).containsEntry(options.sources.get(1), "com.other");
+
+    parser.writeManifest(map, options.outputManifest, true);
+
+    String writtenString = mockIoProvider.writer.toString();
+    assertThat(writtenString).doesNotContain("location");
+    assertThat(writtenString).contains(
+        "absolute_path: \"/usr/local/code/java/com/google/Foo.java\"");
+    assertThat(writtenString).contains(
+        "absolute_path: \"/usr/local/code/java/com/google/Bla.java\"");
+  }
+
+  @Test
+  public void testHandlesFutureFormat() throws Exception {
+    String[] args = new String[] {
+        "--output_manifest",
+        "/tmp/out.manifest",
+        "--sources",
+        ",java/com/google/Foo.java:"
+            + "bin/out,java/com/google/Bla.java",
+    };
+    PackageParser.PackageParserOptions options = PackageParser.parseArgs(args);
+    assertThat(options.outputManifest.toString()).isEqualTo("/tmp/out.manifest");
+    assertThat(options.sources).hasSize(2);
+    assertThat(options.sources.get(0)).isEqualTo(
+        ArtifactLocation.newBuilder()
+            .setRelativePath("java/com/google/Foo.java")
+            .setIsSource(true)
+            .build());
+    assertThat(options.sources.get(1)).isEqualTo(
+        ArtifactLocation.newBuilder()
+            .setRootExecutionPathFragment("bin/out")
+            .setRelativePath("java/com/google/Bla.java")
+            .setIsSource(false)
+            .build());
+  }
+
 }
diff --git a/src/test/java/com/google/devtools/build/lib/ideinfo/AndroidStudioInfoAspectTest.java b/src/test/java/com/google/devtools/build/lib/ideinfo/AndroidStudioInfoAspectTest.java
index 6810d5d..22416fc 100644
--- a/src/test/java/com/google/devtools/build/lib/ideinfo/AndroidStudioInfoAspectTest.java
+++ b/src/test/java/com/google/devtools/build/lib/ideinfo/AndroidStudioInfoAspectTest.java
@@ -43,6 +43,7 @@
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.nio.charset.StandardCharsets;
+import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
@@ -69,6 +70,10 @@
         "//com/google/example:simple", ruleIdeInfos);
     if (isNativeTest()) {
       assertThat(ruleIdeInfo.getBuildFile()).isEqualTo(buildFilePath.toString());
+      ArtifactLocation location = ruleIdeInfo.getBuildFileArtifactLocation();
+      assertThat(Paths.get(location.getRootPath(), location.getRelativePath()).toString())
+          .isEqualTo(buildFilePath.toString());
+      assertThat(location.getRelativePath()).isEqualTo("com/google/example/BUILD");
     }
     assertThat(ruleIdeInfo.getKind()).isEqualTo(Kind.JAVA_LIBRARY);
     assertThat(ruleIdeInfo.getDependenciesCount()).isEqualTo(0);
@@ -907,26 +912,21 @@
         ")");
     Map<String, RuleIdeInfo> ruleIdeInfos = buildRuleIdeInfo("//com/google/example:lib");
     RuleIdeInfo ruleIdeInfo = getRuleInfoAndVerifyLabel("//com/google/example:lib", ruleIdeInfos);
-    assertThat(ruleIdeInfo.getJavaRuleIdeInfo().getSourcesList())
-        .containsExactly(
-            expectedArtifactLocationWithRootPath(
-                    targetConfig.getGenfilesDirectory().getPath().getPathString())
-                .setRelativePath("com/google/example/gen.java")
-                .setIsSource(false)
-                .build(),
-            expectedArtifactLocationWithRootPath(directories.getWorkspace().getPathString())
-                .setRelativePath("com/google/example/Test.java")
-                .setIsSource(true)
-                .build());
-  }
-
-  private ArtifactLocation.Builder expectedArtifactLocationWithRootPath(String pathString) {
-    if (isNativeTest()) {
-      return ArtifactLocation.newBuilder().setRootPath(pathString);
-    } else {
-      // todo(dslomov): Skylark aspect implementation does not yet return a correct root path.
-      return ArtifactLocation.newBuilder();
-    }
+    // todo(dslomov): Skylark aspect implementation does not yet return a correct root path.
+    assertThat(ruleIdeInfo.getJavaRuleIdeInfo().getSourcesList()).containsExactly(
+        ArtifactLocation.newBuilder()
+            .setRootPath(
+                isNativeTest() ? targetConfig.getGenfilesDirectory().getPath().getPathString() : "")
+            .setRootExecutionPathFragment(
+                isNativeTest() ? targetConfig.getGenfilesDirectory().getExecPathString() : "")
+            .setRelativePath("com/google/example/gen.java")
+            .setIsSource(false)
+            .build(),
+        ArtifactLocation.newBuilder()
+            .setRootPath(isNativeTest() ? directories.getWorkspace().getPathString() : "")
+            .setRelativePath("com/google/example/Test.java")
+            .setIsSource(true)
+            .build());
   }
 
   @Test
diff --git a/src/tools/android/java/com/google/devtools/build/android/ideinfo/ArtifactLocationConverter.java b/src/tools/android/java/com/google/devtools/build/android/ideinfo/ArtifactLocationConverter.java
new file mode 100644
index 0000000..318807a
--- /dev/null
+++ b/src/tools/android/java/com/google/devtools/build/android/ideinfo/ArtifactLocationConverter.java
@@ -0,0 +1,68 @@
+// Copyright 2016 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.android.ideinfo;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Splitter;
+import com.google.devtools.build.android.Converters.PathConverter;
+import com.google.devtools.build.lib.ideinfo.androidstudio.PackageManifestOuterClass.ArtifactLocation;
+import com.google.devtools.common.options.Converter;
+import com.google.devtools.common.options.OptionsParsingException;
+
+import java.nio.file.Path;
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+
+/**
+ * Parses artifact location from comma-separate paths
+ */
+@VisibleForTesting
+public class ArtifactLocationConverter implements Converter<ArtifactLocation> {
+  private static final Splitter SPLITTER = Splitter.on(',');
+  private static final PathConverter pathConverter = new PathConverter();
+
+  @Override
+  public ArtifactLocation convert(String input) throws OptionsParsingException {
+    Iterator<String> values = SPLITTER.split(input).iterator();
+    try {
+      Path rootExecutionPathFragment = pathConverter.convert(values.next());
+      Path relPath = pathConverter.convert(values.next());
+
+      // will be removed in a future release -- make it forward-compatible
+      String root = values.hasNext() ? pathConverter.convert(values.next()).toString() : "";
+
+      if (values.hasNext()) {
+        throw new OptionsParsingException("Expected either 2 or 3 comma-separated paths");
+      }
+
+      boolean isSource = rootExecutionPathFragment.toString().isEmpty();
+      return ArtifactLocation.newBuilder()
+          .setRootPath(root)
+          .setRootExecutionPathFragment(rootExecutionPathFragment.toString())
+          .setRelativePath(relPath.toString())
+          .setIsSource(isSource)
+          .build();
+
+    } catch (OptionsParsingException | NoSuchElementException e) {
+      throw new OptionsParsingException("Expected either 2 or 3 comma-separated paths", e);
+    }
+  }
+
+  @Override
+  public String getTypeDescription() {
+    return "Artifact location parser";
+  }
+
+}
diff --git a/src/tools/android/java/com/google/devtools/build/android/ideinfo/ArtifactLocationListConverter.java b/src/tools/android/java/com/google/devtools/build/android/ideinfo/ArtifactLocationListConverter.java
new file mode 100644
index 0000000..a2e162a
--- /dev/null
+++ b/src/tools/android/java/com/google/devtools/build/android/ideinfo/ArtifactLocationListConverter.java
@@ -0,0 +1,46 @@
+// Copyright 2016 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.android.ideinfo;
+
+import com.google.common.collect.Lists;
+import com.google.devtools.build.lib.ideinfo.androidstudio.PackageManifestOuterClass.ArtifactLocation;
+import com.google.devtools.common.options.Converter;
+import com.google.devtools.common.options.OptionsParsingException;
+
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * Parses list of colon-separated artifact locations
+ */
+public class ArtifactLocationListConverter implements Converter<List<ArtifactLocation>> {
+  final ArtifactLocationConverter baseConverter = new ArtifactLocationConverter();
+
+  @Override
+  public List<ArtifactLocation> convert(String input) throws OptionsParsingException {
+    List<ArtifactLocation> list = Lists.newArrayList();
+    for (String piece : input.split(":")) {
+      if (!piece.isEmpty()) {
+        list.add(baseConverter.convert(piece));
+      }
+    }
+    return Collections.unmodifiableList(list);
+  }
+
+  @Override
+  public String getTypeDescription() {
+    return "a colon-separated list of artifact locations";
+  }
+}
diff --git a/src/tools/android/java/com/google/devtools/build/android/ideinfo/PackageParser.java b/src/tools/android/java/com/google/devtools/build/android/ideinfo/PackageParser.java
index 62511d0..f982a31 100644
--- a/src/tools/android/java/com/google/devtools/build/android/ideinfo/PackageParser.java
+++ b/src/tools/android/java/com/google/devtools/build/android/ideinfo/PackageParser.java
@@ -16,6 +16,7 @@
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
+import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.google.common.io.Files;
 import com.google.common.util.concurrent.ListenableFuture;
@@ -23,6 +24,7 @@
 import com.google.common.util.concurrent.MoreExecutors;
 import com.google.devtools.build.android.Converters.PathConverter;
 import com.google.devtools.build.android.Converters.PathListConverter;
+import com.google.devtools.build.lib.ideinfo.androidstudio.PackageManifestOuterClass.ArtifactLocation;
 import com.google.devtools.build.lib.ideinfo.androidstudio.PackageManifestOuterClass.JavaSourcePackage;
 import com.google.devtools.build.lib.ideinfo.androidstudio.PackageManifestOuterClass.PackageManifest;
 import com.google.devtools.common.options.Option;
@@ -34,6 +36,7 @@
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
@@ -54,12 +57,27 @@
 
   /** The options for a {@PackageParser} action. */
   public static final class PackageParserOptions extends OptionsBase {
+    @Option(name = "sources",
+        defaultValue = "null",
+        converter = ArtifactLocationListConverter.class,
+        category = "input",
+        help = "The locations of the java source files. The expected format is a "
+            + "colon-separated list.")
+    public List<ArtifactLocation> sources;
+
+    @Option(name = "output_manifest",
+        defaultValue = "null",
+        converter = PathConverter.class,
+        category = "output",
+        help = "The path to the manifest file this parser writes to.")
+    public Path outputManifest;
+
     @Option(name = "sources_absolute_paths",
         defaultValue = "null",
         converter = PathListConverter.class,
         category = "input",
         help = "The absolute paths of the java source files. The expected format is a "
-               + "colon-separated list.")
+            + "colon-separated list.")
     public List<Path> sourcesAbsolutePaths;
 
     @Option(name = "sources_execution_paths",
@@ -69,13 +87,6 @@
         help = "The execution paths of the java source files. The expected format is a "
             + "colon-separated list.")
     public List<Path> sourcesExecutionPaths;
-
-    @Option(name = "output_manifest",
-        defaultValue = "null",
-        converter = PathConverter.class,
-        category = "output",
-        help = "The path to the manifest file this parser writes to.")
-    public Path outputManifest;
   }
 
   private static final Logger logger = Logger.getLogger(PackageParser.class.getName());
@@ -85,17 +96,22 @@
 
   public static void main(String[] args) throws Exception {
     PackageParserOptions options = parseArgs(args);
-    Preconditions.checkNotNull(options.sourcesAbsolutePaths);
-    Preconditions.checkNotNull(options.sourcesExecutionPaths);
-    Preconditions.checkState(
-        options.sourcesAbsolutePaths.size() == options.sourcesExecutionPaths.size());
     Preconditions.checkNotNull(options.outputManifest);
 
+    // temporary code to handle output from older builds
+    boolean oldFormat = options.sources == null;
+    if (oldFormat) {
+      Preconditions.checkNotNull(options.sourcesAbsolutePaths);
+      Preconditions.checkNotNull(options.sourcesExecutionPaths);
+      Preconditions.checkState(
+          options.sourcesAbsolutePaths.size() == options.sourcesExecutionPaths.size());
+      convertFromOldFormat(options);
+    }
+
     try {
       PackageParser parser = new PackageParser(PackageParserIoProvider.INSTANCE);
-      Map<Path, String> outputMap = parser.parsePackageStrings(options.sourcesAbsolutePaths,
-          options.sourcesExecutionPaths);
-      parser.writeManifest(outputMap, options.outputManifest);
+      Map<ArtifactLocation, String> outputMap = parser.parsePackageStrings(options.sources);
+      parser.writeManifest(outputMap, options.outputManifest, oldFormat);
     } catch (Throwable e) {
       logger.log(Level.SEVERE, "Error parsing package strings", e);
       System.exit(1);
@@ -104,6 +120,43 @@
   }
 
   @VisibleForTesting
+  @Deprecated
+  protected static void convertFromOldFormat(PackageParserOptions options) {
+    options.sources = Lists.newArrayList();
+    for (int i = 0; i < options.sourcesAbsolutePaths.size(); i++) {
+      options.sources.add(dummySourceFromOldFormat(
+          options.sourcesAbsolutePaths.get(i).toString(),
+          options.sourcesExecutionPaths.get(i).toString()));
+    }
+  }
+
+  @Deprecated
+  private static ArtifactLocation dummySourceFromOldFormat(
+      String absolutePath,
+      String executionPath) {
+    if (!absolutePath.endsWith(executionPath)) {
+      throw new IllegalArgumentException(
+          String.format("Cannot parse root path from absolute path %s and execution path %s",
+              absolutePath, executionPath));
+    }
+    String rootPath = absolutePath.substring(0, absolutePath.lastIndexOf(executionPath));
+    return ArtifactLocation.newBuilder()
+        .setRelativePath(executionPath)
+        .setRootPath(rootPath)
+        .build();
+  }
+
+  @Nonnull
+  private static Path getExecutionPath(@Nonnull ArtifactLocation location) {
+    return Paths.get(location.getRootExecutionPathFragment(), location.getRelativePath());
+  }
+
+  @Nonnull
+  private static Path getAbsolutePath(@Nonnull ArtifactLocation location) {
+    return Paths.get(location.getRootPath(), location.getRelativePath());
+  }
+
+  @VisibleForTesting
   public static PackageParserOptions parseArgs(String[] args) {
     args = parseParamFileIfUsed(args);
     OptionsParser optionsParser = OptionsParser.newOptionsParser(PackageParserOptions.class);
@@ -131,13 +184,20 @@
   }
 
   @VisibleForTesting
-  public void writeManifest(@Nonnull Map<Path, String> sourceToPackageMap, Path outputFile)
+  public void writeManifest(
+      @Nonnull Map<ArtifactLocation, String> sourceToPackageMap,
+      Path outputFile,
+      boolean oldFormat)
       throws IOException {
     PackageManifest.Builder builder = PackageManifest.newBuilder();
-    for (Entry<Path, String> entry : sourceToPackageMap.entrySet()) {
-      builder.addSources(JavaSourcePackage.newBuilder()
-          .setAbsolutePath(entry.getKey().toAbsolutePath().toString())
-          .setPackageString(entry.getValue()));
+    for (Entry<ArtifactLocation, String> entry : sourceToPackageMap.entrySet()) {
+      JavaSourcePackage.Builder srcBuilder = JavaSourcePackage.newBuilder()
+          .setAbsolutePath(getAbsolutePath(entry.getKey()).toString())
+          .setPackageString(entry.getValue());
+      if (!oldFormat) {
+        srcBuilder.setArtifactLocation(entry.getKey());
+      }
+      builder.addSources(srcBuilder.build());
     }
 
     try {
@@ -150,24 +210,23 @@
 
   @Nonnull
   @VisibleForTesting
-  public Map<Path, String> parsePackageStrings(@Nonnull List<Path> absolutePaths,
-      @Nonnull List<Path> executionPaths) throws Exception {
+  public Map<ArtifactLocation, String> parsePackageStrings(@Nonnull List<ArtifactLocation> sources)
+      throws Exception {
 
     ListeningExecutorService executorService = MoreExecutors.listeningDecorator(
         Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors()));
 
-    Map<Path, ListenableFuture<String>> futures = Maps.newHashMap();
-    for (int i = 0; i < absolutePaths.size(); i++) {
-      final Path source = executionPaths.get(i);
-      futures.put(absolutePaths.get(i), executorService.submit(new Callable<String>() {
+    Map<ArtifactLocation, ListenableFuture<String>> futures = Maps.newHashMap();
+    for (final ArtifactLocation source : sources) {
+      futures.put(source, executorService.submit(new Callable<String>() {
         @Override
         public String call() throws Exception {
           return getDeclaredPackageOfJavaFile(source);
         }
       }));
     }
-    Map<Path, String> map = Maps.newHashMap();
-    for (Entry<Path, ListenableFuture<String>> entry : futures.entrySet()) {
+    Map<ArtifactLocation, String> map = Maps.newHashMap();
+    for (Entry<ArtifactLocation, ListenableFuture<String>> entry : futures.entrySet()) {
       String value = entry.getValue().get();
       if (value != null) {
         map.put(entry.getKey(), value);
@@ -177,8 +236,8 @@
   }
 
   @Nullable
-  private String getDeclaredPackageOfJavaFile(@Nonnull Path source) {
-    try (BufferedReader reader = ioProvider.getReader(source)) {
+  private String getDeclaredPackageOfJavaFile(@Nonnull ArtifactLocation source) {
+    try (BufferedReader reader = ioProvider.getReader(getExecutionPath(source))) {
       return parseDeclaredPackage(reader);
 
     } catch (IOException e) {