Remove use of file absolute paths.

An absolute path is derived from a relative path by
appending the value of "user.dir" to it. "user.dir" is
populated by the VM by calling getcwd(3). All apps
forked from zygote end up with a "user.dir" (and a current
working directory) value of "/".

This, along with change 417621196b855 (which prevents
"user.dir" from being changed by apps) will make file handling
a lot more consistent. In particular 417621196 ensures that

- The output of getAbsolutePath can never change for a given
  relative path.
- File.getPath() and File.getAbsolutePath() become interchangeable
  wrt. lower level (Libcore.os) APIs.

Change-Id: I5598a2b1c5de65b59d69324f98656ffe031290f0

3 files changed, 3 insertions, 3 deletions

diff --git a/luni/src/main/java/java/io/FileInputStream.java b/luni/src/main/java/java/io/FileInputStream.java
index b2e620f..644f749 100644
--- a/luni/src/main/java/java/io/FileInputStream.java
+++ b/luni/src/main/java/java/io/FileInputStream.java
@@ -75,7 +75,7 @@ public class FileInputStream extends InputStream {
         if (file == null) {
             throw new NullPointerException("file == null");
         }
-        this.fd = IoBridge.open(file.getAbsolutePath(), O_RDONLY);
+        this.fd = IoBridge.open(file.getPath(), O_RDONLY);
         this.shouldClose = true;
         guard.open("close");
     }
diff --git a/luni/src/main/java/java/io/FileOutputStream.java b/luni/src/main/java/java/io/FileOutputStream.java
index e04ab5f..f5ba11e 100644
--- a/luni/src/main/java/java/io/FileOutputStream.java
+++ b/luni/src/main/java/java/io/FileOutputStream.java
@@ -85,7 +85,7 @@ public class FileOutputStream extends OutputStream {
             throw new NullPointerException("file == null");
         }
         this.mode = O_WRONLY | O_CREAT | (append ? O_APPEND : O_TRUNC);
-        this.fd = IoBridge.open(file.getAbsolutePath(), mode);
+        this.fd = IoBridge.open(file.getPath(), mode);
         this.shouldClose = true;
         this.guard.open("close");
     }
diff --git a/luni/src/main/java/java/io/RandomAccessFile.java b/luni/src/main/java/java/io/RandomAccessFile.java
index a60da3e..6e88fe0 100644
--- a/luni/src/main/java/java/io/RandomAccessFile.java
+++ b/luni/src/main/java/java/io/RandomAccessFile.java
@@ -115,7 +115,7 @@ public class RandomAccessFile implements DataInput, DataOutput, Closeable {
             throw new IllegalArgumentException("Invalid mode: " + mode);
         }
         this.mode = flags;
-        this.fd = IoBridge.open(file.getAbsolutePath(), flags);
+        this.fd = IoBridge.open(file.getPath(), flags);
 
         // if we are in "rws" mode, attempt to sync file+metadata
         if (syncMetadata) {