OPSC 12cR1 Install Error:"no compatible version of 64-Bit java runtime exist on the system."

The Full error msg from the 12cR1 installer script:
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Using Solaris sparc_64 Binaries
localhost is alive

warning: Jvm: System has greater version of 32-Bit java runtime (1.7.0_05) than
the bundled version (1.7.0_02). However, no compatible version of
64-Bit java runtime exists on the system. You can either choose to
continue, in which case, the 64-bit support on the Enterprise
Controller will be disabled or manually install the 64-Bit java runtime
(1.7.0_05) and try again.

Number of precheck info messages: 0, number of warnings: 1, number of errors: 0

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I saw that the 11g installer script had the same problem last year.

Why is this still a problem?