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Pass OpenJDK 8's bootclasspath for host tools targeting <= 1.8.

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Follow the Make change in I9b6081edfdd2c3e9a450ae8a39c4e32c3d2cda92
to explicitly pass the OpenJDK 8 bootclasspath when targeting <= 1.8.

Bug: 70862583
Test: java_test.go
Test: javap -c -p out/soong/.intermediates/external/guava/guava/linux_glibc_common/javac/classes/com/google/common/hash/AbstractStreamingHashFunction\$AbstractStreamingHasher.class  | grep ByteBuffer.flip
      shows java/nio/Buffer return type in signature.

Change-Id: Ief66bbf6e3a4220b3afb2e02009bd0157d4c7fae
This commit is contained in:
Colin Cross
2018-01-02 18:14:25 -08:00
parent ee6143cde2
commit 7fdd2b788c
2 changed files with 43 additions and 9 deletions
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23
java/java.go
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@@ -597,6 +597,29 @@ func (j *Module) collectBuilderFlags(ctx android.ModuleContext, deps deps) javaB
// classpath
flags.bootClasspath.AddPaths(deps.bootClasspath)
flags.classpath.AddPaths(deps.classpath)
if len(flags.bootClasspath) == 0 && ctx.Host() && !ctx.Config().TargetOpenJDK9() &&
!Bool(j.properties.No_standard_libs) &&
inList(flags.javaVersion, []string{"1.6", "1.7", "1.8"}) {
// Give host-side tools a version of OpenJDK's standard libraries
// close to what they're targeting. As of Dec 2017, AOSP is only
// bundling OpenJDK 8 and 9, so nothing < 8 is available.
//
// When building with OpenJDK 8, the following should have no
// effect since those jars would be available by default.
//
// When building with OpenJDK 9 but targeting a version < 1.8,
// putting them on the bootclasspath means that:
// a) code can't (accidentally) refer to OpenJDK 9 specific APIs
// b) references to existing APIs are not reinterpreted in an
// OpenJDK 9-specific way, eg. calls to subclasses of
// java.nio.Buffer as in http://b/70862583
java8Home := ctx.Config().Getenv("ANDROID_JAVA8_HOME")
flags.bootClasspath = append(flags.bootClasspath,
android.PathForSource(ctx, java8Home, "jre/lib/jce.jar"),
android.PathForSource(ctx, java8Home, "jre/lib/rt.jar"))
}
// systemModules
if deps.systemModules != nil {
flags.systemModules = append(flags.systemModules, deps.systemModules)