Why do I get error: unexpected end tag and Error: An error occurred while shelling out to javadoc while creating JAR from MATLAB Compiler SDK with JDK 1.8?

I am creating a Java Application from MATLAB code using MATLAB Compiler SDK.

However, while compiling the sample code, I am getting some errors-

C:\Users\detomal\makesqr\for_testing\makesqr\Class1.java:207: error: unexpected end tag: </p>

* </p>

^

C:\Users\detomal\makesqr\for_testing\makesqr\Class1.java:59: warning: no @throws for com.mathworks.toolbox.javabuilder.MWException

public Class1() throws MWException

^

C:\Users\detomal\makesqr\for_testing\makesqr\Class1.java:88: warning: no @throws for com.mathworks.toolbox.javabuilder.MWException

public Class1(MWComponentOptions componentOptions) throws MWException

Generating C:\Users\detomal\makesqr\for_testing\doc\html\makesqr\Class1Remote.html...

C:\Users\detomal\makesqr\for_testing\makesqr\Class1Remote.java:62: error: reference not found

* @throws java.jmi.RemoteException An error has occurred during the function call or

^

C:\Users\detomal\makesqr\for_testing\makesqr\Class1Remote.java:65: warning: no @throws for java.rmi.RemoteException

public Object[] makesqr(int nargout, Object... rhs) throws RemoteException;

^

C:\Users\detomal\makesqr\for_testing\makesqr\Class1Remote.java:68: warning: no @throws for java.rmi.RemoteException

void dispose() throws RemoteException;

^

Generating C:\Users\detomal\makesqr\for_testing\doc\html\makesqr\MakesqrMCRFactory.html...

Generating C:\Users\detomal\makesqr\for_testing\doc\html\makesqr\package-frame.html...

Generating C:\Users\detomal\makesqr\for_testing\doc\html\makesqr\package-summary.html...

C:\Users\detomal\makesqr\for_testing\makesqr\package-info.java:8: warning: empty <p> tag

* <p>

^

C:\Users\detomal\makesqr\for_testing\makesqr\package-info.java:15: error: unexpected end tag: </p>

* </p>

6 errors

8 warnings

Error: An error occurred while shelling out to javadoc (error code = 1).

Unable to build executable.

Error using mcc

Error executing mcc, return status = 1 (0x1).

How to fix this?

Answer 1

[MathWorks Support Team]

You are using Java 1.8 with MATLAB R2016b.

MATLAB R016b is qualified and tested to work with Java 1.7 only.

Refer the following document for more details-

https://www.mathworks.com/content/dam/mathworks/mathworks-dot-com/support/sysreq/files/SystemRequirements-Release2016b_SupportedCompilers.pdf

There are three workarounds that you can use in order to make it work-

1. Update MATLAB to R2017b which supports Java 1.8

2.  Download and install Java 1.7 JDK version and reset the JAVA_HOME environment variable to the directory of this version.

3. Use <https://www.mathworks.com/help/compiler_sdk/ml_code/mcc.html mcc> command with the -K flag. This will allow you to keep the intermediate files without deleting them while you are compiling with JDK 1.8.  This will allow you to create a working Java package even if the build fails with "javadoc" error.