iamaleksey commented on PR #2256:
URL: https://github.com/apache/cassandra/pull/2256#issuecomment-1500098848
> Build fails
>
> ```
> _build_java:
> [echo] Compiling for Java 1.8...
> [javac] Compiling 2327 source files to
/Users/dcapwell/src/github/apache/cassandra/prs/cep-15-accord/build/classes/main
> [javac] Note: Processing compiler hints annotations
> [javac] Note: Processing compiler hints annotations
> [javac] Note: Writing compiler command file at
META-INF/hotspot_compiler
> [javac] Note: Done processing compiler hints annotations
> [javac]
/Users/dcapwell/src/github/apache/cassandra/prs/cep-15-accord/src/java/org/apache/cassandra/journal/ActiveSegment.java:96:
error: incompatible types: Buffer cannot be converted to ByteBuffer
> [javac] ByteBuffer duplicate =
buffer.duplicate().position(offset).limit(buffer.capacity());
> [javac]
^
> [javac]
/Users/dcapwell/src/github/apache/cassandra/prs/cep-15-accord/src/java/org/apache/cassandra/journal/ActiveSegment.java:322:
error: incompatible types: Buffer cannot be converted to ByteBuffer
> [javac] return new Allocation(opGroup,
buffer.duplicate().position(position).limit(position + totalSize));
> [javac]
^
> [javac]
/Users/dcapwell/src/github/apache/cassandra/prs/cep-15-accord/src/java/org/apache/cassandra/journal/EntrySerializer.java:183:
error: incompatible types: Buffer cannot be converted to ByteBuffer
> [javac] .limit(buffer.position());
> [javac] ^
> [javac]
/Users/dcapwell/src/github/apache/cassandra/prs/cep-15-accord/src/java/org/apache/cassandra/journal/StaticSegment.java:178:
error: incompatible types: Buffer cannot be converted to ByteBuffer
> [javac] ByteBuffer duplicate =
buffer.duplicate().position(offset);
> [javac] ^
> [javac]
/Users/dcapwell/src/github/apache/cassandra/prs/cep-15-accord/src/java/org/apache/cassandra/service/accord/AccordJournal.java:148:
error: cannot infer type arguments for KeySupport<K>
> [javac] static final KeySupport<Key> SUPPORT = new
KeySupport<>()
> [javac] ^
> [javac] reason: cannot use '<>' with anonymous inner classes
> [javac] where K is a type-variable:
> [javac] K extends Object declared in interface KeySupport
> [javac]
/Users/dcapwell/src/github/apache/cassandra/prs/cep-15-accord/src/java/org/apache/cassandra/service/accord/AccordJournal.java:295:
error: cannot infer type arguments for ValueSerializer<K,V>
> [javac] static final ValueSerializer<Key, TxnRequest<?>>
MESSAGE_SERIALIZER = new ValueSerializer<>()
> [javac]
^
> [javac] reason: cannot use '<>' with anonymous inner classes
> [javac] where K,V are type-variables:
> [javac] K extends Object declared in interface ValueSerializer
> [javac] V extends Object declared in interface ValueSerializer
> [javac] Note: Some input files use or override a deprecated API.
> [javac] Note: Recompile with -Xlint:deprecation for details.
> [javac] Note: Some input files use unchecked or unsafe operations.
> [javac] Note: Recompile with -Xlint:unchecked for details.
> [javac] Note: Some messages have been simplified; recompile with
-Xdiags:verbose to get full output
> [javac] 6 errors
>
> BUILD FAILED
> ```
Fails when building with JDK8, yes. I was hoping we would've dropped JDK8 by
now in trunk by the time any of this goes in. Building for language level 8 but
with JDK11 locally.
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