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lz4 / lz4-java

LZ4 compression for Java
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sun.misc.Unsafe deprecated and unavailable #189

Closed kolmisra closed 2 years ago

kolmisra commented 2 years ago

While building the code with JDK 17 and --release as 8 , java compiler complains about the class https://github.com/lz4/lz4-java/blob/master/src/java-unsafe/net/jpountz/util/UnsafeUtils.java

Is there any alternate or fix available?

Even the --release 9 and higher works with the warning. The need here to stay with --release as 8.

Here is a sample repro. import sun.misc.Unsafe; public class test1 { private Unsafe UNSAFE=null; }

javac --release 8 test1.java test1.java:1: error: package sun.misc does not exist import sun.misc.Unsafe; ^ test1.java:3: error: cannot find symbol private Unsafe UNSAFE=null; ^ symbol: class Unsafe location: class test1 2 errors

javac --release 9 test1.java test1.java:1: warning: Unsafe is internal proprietary API and may be removed in a future release import sun.misc.Unsafe; ^ test1.java:3: warning: Unsafe is internal proprietary API and may be removed in a future release private Unsafe UNSAFE=null; ^ 2 warnings

kolmisra commented 2 years ago

for now i have a temp solution. javac -source 8 -target 8 -bootclasspath \Openjdk8\jre\lib\rt.jar test1.java

If there is any new fix to solve the deprecated warning please update.