Getting error while Upgrading java webservice code from java 1.4 to java 1.7

Question

We have a websercie code written in java version 1.4 and axis 1.4 now we are trying to upgrade to java 1.7 I am getting below errors while compiling with java 1.7 version.

[javac]
^ [javac] (use -source 5 or higher to use 'enum' as a keyword)

[javac] C:\xxx\adapter\xyz\src\abc\java\com\a\b\c\d\schema\e

_PrototypeSoapStub.java:30: warning: as of release 5, 'enum' is a keyword, and m

ay not be used as an identifier

[javac]         oper.setUse(org.apache.axis.enum.Use.ENCODED);

[javac]                                     ^
[javac]   (use -source 5 or higher to use 'enum' as a keyword)
[javac] C:\xxx\adapter\xyz\src\abc\java\com\a\b\c\d\schema\e

_PrototypeSoapStub.java:41: warning: as of release 5, 'enum' is a keyword, and m ay not be used as an identifier

[javac]         oper.setStyle(org.apache.axis.enum.Style.RPC);

[javac]                                       ^
[javac]   (use -source 5 or higher to use 'enum' as a keyword)

[javac] C:\xxx\adapter\xyz\src\abc\java\com\a\b\c\d\schema\e

_PrototypeSoapStub.java:42: warning: as of release 5, 'enum' is a keyword, and m

ay not be used as an identifier

[javac]         oper.setUse(org.apache.axis.enum.Use.ENCODED);

could you please suggest how to resolve this??

Answer 1

Java 5 added a language feature calls enums.

From Java 5 enum cannot be used as an identifier (method name, variable name, part of package) as it is a keyword.

You have to use newer version of the library.

Answer 2

Looking at the Javadocs for apache axis 1.4, you'll see that org.apache.axis.enum.Use is deprecated. You should change all of your references to use org.apache.axis.constants.Scope instead. This will get you around using the enum keyword as an identifier, which, as you've discovered, you can't do anymore.

As a side note, Axis 1.4 hasn't had an update in almost a decade. It's probably time to start investigating rewriting this in something that's still maintained and part of the standard. Java EE has an integrated web service framework that's generally easier to use than Axis, and still actively maintained. However, it would represent a major re-write, so that may not be an immediate option for you.