There as these warnings printed during the build:
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Compiling 68 files for COMPILE_CREATE_SYMBOLS
/home/jlahoda/src/jdk/jdk/build/linux-x86_64-server-release/buildtools/interim_langtools_modules/java.compiler.interim/javax/lang/model/util/Elements.class: warning: Cannot find annotation method 'feature()' in type 'PreviewFeature': class file for jdk.internal.PreviewFeature not found
warning: unknown enum constant Feature.RECORDS
  reason: class file for jdk.internal.PreviewFeature$Feature not found
/home/jlahoda/src/jdk/jdk/build/linux-x86_64-server-release/buildtools/interim_langtools_modules/java.compiler.interim/javax/lang/model/util/Elements.class: warning: Cannot find annotation method 'essentialAPI()' in type 'PreviewFeature'
/home/jlahoda/src/jdk/jdk/build/linux-x86_64-server-release/buildtools/interim_langtools_modules/java.compiler.interim/javax/lang/model/element/TypeElement.class: warning: Cannot find annotation method 'feature()' in type 'PreviewFeature'
warning: unknown enum constant Feature.RECORDS
/home/jlahoda/src/jdk/jdk/build/linux-x86_64-server-release/buildtools/interim_langtools_modules/java.compiler.interim/javax/lang/model/element/TypeElement.class: warning: Cannot find annotation method 'essentialAPI()' in type 'PreviewFeature'
6 warnings
Creating ct.sym classes
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