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JEP 217 may affect source code that uses the applet API. The deprecation annotations will cause deprecation warnings to be emitted by the Java compiler for all code that uses this API. If warnings are treated as errors, they will result in build failure.

Enhanced Deprecation

JEP 277 may affect source code that uses a depreceted deprecated Java SE API. Several Java SE APIs will have a @Deprecated annotation added, updated, or removed. Deprecating APIs will increase the number of mandatory warnings that projects encounter when building against newer versions of Java SE. For more information about these planned changes, please consult the JEP text.

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