Fix Azure Remote Rendering tests by adding now missing dependencies and changed conversion error messages

[MichaelZp0]

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[MichaelZp0]

/azp run java - remoterendering - tests

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[MichaelZp0]

/azp run java - remoterendering - tests

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[MichaelZp0]

/azp run java - remoterendering - tests

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[MichaelZp0]

So, that change isn't great. The test fixes are absolutely fine, but the test framework fixes are kinda bad.

Problem is, that the new HTTP client azure-core-http-jdk-httpclient doesn't work with Java 1.8. From the matrix config file it looks like it shouldn't be run in tandem, only with 1.17, but it somehow does anyway. So I disabled Java 1.8 tests for now and will contact the person that added the azure-core-http-jdk-httpclient tests to see if we can find a better solution.

I would still go forward with this PR, as we are currently testing nothing and there is a risk of missing breaks in the releases for normal ARR (not the java SDK itself).

[alzimmermsft]

To have the tests work properly with Java 8, you'll want to remove this dependency and leave what is added later on with the JDK 12+ profile

[mssfang]

<profiles>
    <profile>
      <id>java12plus</id>
      <activation>
        <jdk>[12,)</jdk>
      </activation>
      <dependencies>
        <dependency>
          <groupId>com.azure</groupId>
          <artifactId>azure-core-http-jdk-httpclient</artifactId>
          <version>1.0.0-beta.11</version> <!-- {x-version-update;com.azure:azure-core-http-jdk-httpclient;dependency} -->
          <scope>test</scope>
        </dependency>
      </dependencies>
    </profile>
  </profiles>

[alzimmermsft]

This is missing test scope