Most likely a result of the disjoint base change in JDK-8064457

Log:

Protected page at the reserved heap base: 0x0000001800000000 / 2097152 bytes

heap address: 0x0000001800200000, size: 128 MB, Compressed Oops mode: Non-zero disjoint base: 0x0000001800000000, Oop shift amount: 3

Narrow klass base: 0x0000001808200000, Narrow klass shift: 0
Compressed class space size: 1073741824 Address: 0x0000001808200000 Req Addr: 0x0000001808200000
];
 stderr: [java version "1.9.0-internal-fastdebug"
Java(TM) SE Runtime Environment (build 1.9.0-internal-fastdebug-20150211165608.danielfuchs.hs-rt-b00)
Java HotSpot(TM) 64-Bit Server VM (build 1.9.0-internal-fastdebug-20150211165608.danielfuchs.hs-rt-b00, mixed mode)
]
 exitValue = 0

java.lang.RuntimeException: 'Narrow klass base: 0x0000000000000000' missing from stdout/stderr

at com.oracle.java.testlibrary.OutputAnalyzer.shouldContain(OutputAnalyzer.java:134)
at CompressedClassPointers.smallHeapTest(CompressedClassPointers.java:43)
at CompressedClassPointers.main(CompressedClassPointers.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:745)