JDK 9 includes the PowerPC/AIX port.
We are porting ported most new features of OpenJdk to ppc and aix. We keep tuning and optimizing the port in jdk9.
The JDK 9 port supports the following parts of the OpenJDK:
Processor: The port supports only 64-bit PPC machines. It recognizes Power chips 5 through 8 and generates code optimized for these processors. It lacks an instruction scheduler targeted to Power 6, which is an in-order issueing processor.
SAP is no more supporting these JDKs.