Netty: Review Metatype Config and System Properties

[volosied]

Prior to GA,

• Review Netty Metatype and see if it requires a custom element
• Review Properties/Attributes names and descriptions
• Remove System Properties ( Integer.getInteger ... getLong .... etc)

Code Location: https://github.com/OpenLiberty/open-liberty/blob/integration/dev/io.openliberty.netty.internal.impl/src/io/openliberty/netty/internal/impl/NettyFrameworkImpl.java#L186

https://github.com/OpenLiberty/open-liberty/blob/integration/dev/io.openliberty.netty.internal.impl/src/io/openliberty/netty/internal/impl/NettyFrameworkImpl.java#L131

Existing Config:

• scalerMinThreads
• scalerMaxThreads
• scalerWindowSize
• scalerDownThreshold
• scalerUpThreshold
• scalerDownStep
• scalerUpStep
• scalerCycles
• scalerMetricsWindowSize
• useNativeIO (including io.openliberty.netty.internal.useNativeIO)

[volosied]

Related: 32230 & 34020