Optional update for java-1_7_0-bootstrap

This update for java-1_7_0-bootstrap fixes the following issues:

- Improved the build process of this package. This patch does not address any
user visible bugs and is therefore optional to install.

This update was imported from the SUSE:SLE-15:Update update project.

Fixed bugs
bnc#1181571
Catchall bug for build issues in setting up openSUSE Leap 15.3 for armv7hl
Selected Binaries
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