The following test:

    sun/tools/jhat/HatHeapDump1Test.java

uses wrong path in Runtime.exec(). For AMD 64 platform, it uses paths like

 C:\\local\\common\\jdk\\baseline\\windows-amd64\\jre\\bin\\amd64\\java
 (or)
 /export/local/common/jdk/baseline/linux-amd64/jre/bin/amd64/java

depending on the OS. The extra "amd64" in above paths is wrong. The correct paths are

 C:\\local\\common\\jdk\\baseline\\windows-amd64\\jre\\bin\\java
 (or)
 /export/local/common/jdk/baseline/linux-amd64/jre/bin/java.

Because of this the test throws java.lang.RuntimeException: Test failed - exec got IO exception.