java.lang.NoSuchMethodError when starting Torch Serve

I keep getting this path not found error.

This is from starting the torchserve inside a project:

torchserve --start --model-store model_store --models densenet161=densenet161.mar

% java.lang.NoSuchMethodError: java.nio.file.Files.readString(Ljava/nio/file/Path;)Ljava/lang/String;
	at org.pytorch.serve.util.ConfigManager.readFile(ConfigManager.java:196)
	at org.pytorch.serve.util.ConfigManager.<init>(ConfigManager.java:108)
	at org.pytorch.serve.util.ConfigManager.init(ConfigManager.java:246)
	at org.pytorch.serve.ModelServer.main(ModelServer.java:70)

This is from after pulling and building torchserve from git, and running the torchserve_sanity.sh script:

> Task :modelarchive:test
objc[37989]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/bin/java (0x10b9184c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10b9924e0). One of the two will be used. Which one is undefined.

ModelArchiverSuite > TorchServe > org.pytorch.serve.archive.CoverageTest > test PASSED

ModelArchiverSuite > TorchServe > org.pytorch.serve.archive.ModelArchiveTest > test PASSED

ModelArchiverSuite > TorchServe > org.pytorch.serve.archive.ModelArchiveTest > testInvalidURL PASSED

ModelArchiverSuite > TorchServe > org.pytorch.serve.archive.ModelArchiveTest > testMalformURL PASSED

> Task :server:compileJava FAILED
/Users/hariharan/Petprojects/torchserve/serve/frontend/server/src/main/java/org/pytorch/serve/util/ConfigManager.java:196: error: cannot find symbol
        return Files.readString(Paths.get(path));
                    ^
  symbol:   method readString(Path)
  location: class Files
1 error

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':server:compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 11s
18 actionable tasks: 18 executed
Frontend build suite execution failed!!! Check logs for more details

Any ideas or help here please? Also, here’s my environment info:

Mac OSX Catalina 10.15.4 (19E287)

% python --version
Python 3.7.4

torch                    1.5.1
torch-model-archiver     0.1.1
torchserve               0.1.1
torchtext                0.6.0
torchvision              0.6.1

% java -version
java version "1.8.0_60"
Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)

[dhaniram-kshirsagar]

You need java 11 for this. Please look at the quick start guide here

[SysuCharon]

@SysuCharon: Could you please log a fresh ticket with your environment details per the bug report template? @harshbafna thank u I have solved this problem Install JDK first and then torch serve