Sure Sir, please find attached.
Thanks.
On Mon, Jul 29, 2024 at 11:12 AM Tsz Wo Sze <[email protected]> wrote:
> Please check /etc/maven/settings.xml, especially, the file is quite old (
> Nov 20 2019) . If you don't mind, you may attach the file so that we
> can take a look.
>
> > Wondering how "-source 7" is brought into picture when system doesnt
> have it ?
>
> The option "-source 7" was passed from Maven to javac. It is to
> specify the java source version (i.e. we may use jdk 11 to compile java 7
> source files). See
> https://docs.oracle.com/en/java/javase/17/docs/specs/man/javac.html
>
> --source *release* or -source *release*
>
> Compiles source code according to the rules of the Java programming
> language for the specified Java SE release. The supported values of
> *release* are the current Java SE release and a limited number of
> previous releases, detailed in the command-line help.
>
> If the option is not specified, the default is to compile source code
> according to the rules of the Java programming language for the current
> Java SE release.
> Tsz-Wo
>
>
> On Sun, Jul 28, 2024 at 10:19 PM Anand ngo <[email protected]> wrote:
>
>> Thank you for the pointers. I checked those.
>>
>> 1) Same error with ./mvnw
>> 2) Its fresh installation of maven with no user settings file in ~/.m2
>> 3) System maven file has comments only. Discovered as follows-
>>
>> anand@user-MS-7C96:~/git/ratis$ which mvn
>> /usr/bin/mvn
>> lrwxrwxrwx 1 root root 21 Jul 28 20:18 /usr/bin/mvn ->
>> /etc/alternatives/mvn
>> lrwxrwxrwx 1 root root 24 Jul 28 20:18 /etc/alternatives/mvn ->
>> /usr/share/maven/bin/mvn
>> -rwxr-xr-x 1 root root 5741 Nov 20 2019 /usr/share/maven/bin/mvn
>> lrwxrwxrwx 1 root root 10 Feb 10 2021 conf -> /etc/maven
>> -rw-r--r-- 1 root root 10211 Nov 20 2019 /etc/maven/settings.xml
>>
>> Wondering how "-source 7" is brought into picture when system doesnt
>> have it ?
>>
>> There are 2 choices for the alternative javac (providing /usr/bin/javac).
>> Selection Path Priority
>> Status
>> ------------------------------------------------------------
>> 0 /usr/lib/jvm/java-11-openjdk-amd64/bin/javac 1111
>> auto mode
>> * 1 /usr/lib/jvm/java-11-openjdk-amd64/bin/javac 1111
>> manual mode
>> 2 /usr/lib/jvm/java-8-openjdk-amd64/bin/javac 1081
>> manual mode
>>
>> Thanks.
>> Anand.
>>
>> On Mon, Jul 29, 2024 at 5:50 AM Tsz Wo Sze <[email protected]> wrote:
>>
>>> Hi Anand,
>>>
>>> > ... *not supported in -source 7 ...*
>>>
>>> It seems that you were passing "-source 7" to java in your maven setting
>>> while Ratis requires java 8. You may have a maven profile specifying it.
>>> Please check
>>>
>>> - The Maven install: ${maven.home}/conf/settings.xml
>>> - A user's install: ${user.home}/.m2/settings.xml
>>>
>>> See https://maven.apache.org/settings.html
>>>
>>> See also
>>> https://github.com/apache/ratis/blob/fb4968f1738172615d9c21f1673e49599dc13766/pom.xml#L208-L209
>>> <javac.version>8</javac.version>
>>> <java.min.version>${javac.version}</java.min.version>
>>>
>>> > ... *$ mvn clean package -DskipTests*
>>>
>>> Please use "./mvnw" instead of "mvn". It may be able to solve the
>>> compilation problem.
>>>
>>> Tsz-Wo
>>>
>>>
>>> On Sun, Jul 28, 2024 at 10:34 AM Anand ngo <[email protected]> wrote:
>>>
>>>> Hello,
>>>>
>>>> I have installed default jdk, jre as:
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> *anand@user-MS-7C96:~/git/ratis$ java -versionopenjdk version "11.0.23"
>>>> 2024-04-16OpenJDK Runtime Environment (build
>>>> 11.0.23+9-post-Ubuntu-1ubuntu122.04.1)OpenJDK 64-Bit Server VM (build
>>>> 11.0.23+9-post-Ubuntu-1ubuntu122.04.1, mixed mode,
>>>> sharing)anand@user-MS-7C96:~/git/ratis$ javac -versionjavac 11.0.23*
>>>>
>>>>
>>>>
>>>>
>>>> *anand@user-MS-7C96:~/git/ratis$ echo
>>>> $JAVA_HOME/usr/lib/jvm/default-javaanand@user-MS-7C96:~/git/ratis$ ls -l
>>>> /usr/lib/jvm/default-javalrwxrwxrwx 1 root root 25 Mar 24 2022
>>>> /usr/lib/jvm/default-java -> java-1.11.0-openjdk-amd64*
>>>>
>>>> but getting compilation error --
>>>>
>>>>
>>>> *anand@user-MS-7C96:~/git/ratis$ mvn clean package -DskipTests[INFO]
>>>> Scanning for projects...*
>>>>
>>>> *<...>*
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> *[INFO] --- maven-compiler-plugin:3.10.0:compile (default-compile) @
>>>> ratis-proto ---[INFO] Compiling 20 source files to
>>>> /home/anand/git/ratis/ratis-proto/target/classes[INFO]
>>>> -------------------------------------------------------------[ERROR]
>>>> COMPILATION ERROR :[INFO]
>>>> -------------------------------------------------------------[ERROR]
>>>> /home/anand/git/ratis/ratis-proto/target/generated-sources/org/apache/ratis/proto/grpc/AdminProtocolServiceGrpc.java:[288,4]
>>>> error: default methods are not supported in -source 7 (use -source 8 or
>>>> higher to enable default methods)[ERROR]
>>>> /home/anand/git/ratis/ratis-proto/target/generated-sources/org/apache/ratis/proto/grpc/RaftClientProtocolServiceGrpc.java:[133,4]
>>>> error: default methods are not supported in -source 7 (use -source 8 or
>>>> higher to enable default methods)[ERROR]
>>>> /home/anand/git/ratis/ratis-proto/target/generated-sources/org/apache/ratis/test/proto/GreeterGrpc.java:[130,4]
>>>> error: default methods are not supported in -source 7 (use -source 8 or
>>>> higher to enable default methods)[ERROR]
>>>> /home/anand/git/ratis/ratis-proto/target/generated-sources/org/apache/ratis/proto/grpc/RaftServerProtocolServiceGrpc.java:[223,4]
>>>> error: default methods are not supported in -source 7 (use -source 8 or
>>>> higher to enable default methods)[ERROR]
>>>> /home/anand/git/ratis/ratis-proto/target/generated-sources/org/apache/ratis/proto/FileTransferExampleServiceGrpc.java:[99,4]
>>>> error: default methods are not supported in -source 7 (use -source 8 or
>>>> higher to enable default methods)[INFO] 5 errors[INFO]
>>>> -------------------------------------------------------------[INFO]
>>>> ------------------------------------------------------------------------[INFO]
>>>> Reactor Summary for Apache Ratis 3.2.0-SNAPSHOT:[INFO][INFO] Apache Ratis
>>>> ....................................... SUCCESS [ 1.134 s][INFO] Apache
>>>> Ratis Documentation ......................... SUCCESS [ 0.361 s][INFO]
>>>> Apache Ratis Protocols ............................. FAILURE [ 0.987 s]*
>>>>
>>>> Please suggest if I missed some setup/config
>>>> Thanks.
>>>> Anand.
>>>>
>>>
<?xml version="1.0" encoding="UTF-8"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
<!--
| This is the configuration file for Maven. It can be specified at two levels:
|
| 1. User Level. This settings.xml file provides configuration for a single user,
| and is normally provided in ${user.home}/.m2/settings.xml.
|
| NOTE: This location can be overridden with the CLI option:
|
| -s /path/to/user/settings.xml
|
| 2. Global Level. This settings.xml file provides configuration for all Maven
| users on a machine (assuming they're all using the same Maven
| installation). It's normally provided in
| ${maven.conf}/settings.xml.
|
| NOTE: This location can be overridden with the CLI option:
|
| -gs /path/to/global/settings.xml
|
| The sections in this sample file are intended to give you a running start at
| getting the most out of your Maven installation. Where appropriate, the default
| values (values used when the setting is not specified) are provided.
|
|-->
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd";>
<!-- localRepository
| The path to the local repository maven will use to store artifacts.
|
| Default: ${user.home}/.m2/repository
<localRepository>/path/to/local/repo</localRepository>
-->
<!-- interactiveMode
| This will determine whether maven prompts you when it needs input. If set to false,
| maven will use a sensible default value, perhaps based on some other setting, for
| the parameter in question.
|
| Default: true
<interactiveMode>true</interactiveMode>
-->
<!-- offline
| Determines whether maven should attempt to connect to the network when executing a build.
| This will have an effect on artifact downloads, artifact deployment, and others.
|
| Default: false
<offline>false</offline>
-->
<!-- pluginGroups
| This is a list of additional group identifiers that will be searched when resolving plugins by their prefix, i.e.
| when invoking a command line like "mvn prefix:goal". Maven will automatically add the group identifiers
| "org.apache.maven.plugins" and "org.codehaus.mojo" if these are not already contained in the list.
|-->
<pluginGroups>
<!-- pluginGroup
| Specifies a further group identifier to use for plugin lookup.
<pluginGroup>com.your.plugins</pluginGroup>
-->
</pluginGroups>
<!-- proxies
| This is a list of proxies which can be used on this machine to connect to the network.
| Unless otherwise specified (by system property or command-line switch), the first proxy
| specification in this list marked as active will be used.
|-->
<proxies>
<!-- proxy
| Specification for one proxy, to be used in connecting to the network.
|
<proxy>
<id>optional</id>
<active>true</active>
<protocol>http</protocol>
<username>proxyuser</username>
<password>proxypass</password>
<host>proxy.host.net</host>
<port>80</port>
<nonProxyHosts>local.net|some.host.com</nonProxyHosts>
</proxy>
-->
</proxies>
<!-- servers
| This is a list of authentication profiles, keyed by the server-id used within the system.
| Authentication profiles can be used whenever maven must make a connection to a remote server.
|-->
<servers>
<!-- server
| Specifies the authentication information to use when connecting to a particular server, identified by
| a unique name within the system (referred to by the 'id' attribute below).
|
| NOTE: You should either specify username/password OR privateKey/passphrase, since these pairings are
| used together.
|
<server>
<id>deploymentRepo</id>
<username>repouser</username>
<password>repopwd</password>
</server>
-->
<!-- Another sample, using keys to authenticate.
<server>
<id>siteServer</id>
<privateKey>/path/to/private/key</privateKey>
<passphrase>optional; leave empty if not used.</passphrase>
</server>
-->
</servers>
<!-- mirrors
| This is a list of mirrors to be used in downloading artifacts from remote repositories.
|
| It works like this: a POM may declare a repository to use in resolving certain artifacts.
| However, this repository may have problems with heavy traffic at times, so people have mirrored
| it to several places.
|
| That repository definition will have a unique id, so we can create a mirror reference for that
| repository, to be used as an alternate download site. The mirror site will be the preferred
| server for that repository.
|-->
<mirrors>
<!-- mirror
| Specifies a repository mirror site to use instead of a given repository. The repository that
| this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used
| for inheritance and direct lookup purposes, and must be unique across the set of mirrors.
|
<mirror>
<id>mirrorId</id>
<mirrorOf>repositoryId</mirrorOf>
<name>Human Readable Name for this Mirror.</name>
<url>http://my.repository.com/repo/path</url>
</mirror>
-->
</mirrors>
<!-- profiles
| This is a list of profiles which can be activated in a variety of ways, and which can modify
| the build process. Profiles provided in the settings.xml are intended to provide local machine-
| specific paths and repository locations which allow the build to work in the local environment.
|
| For example, if you have an integration testing plugin - like cactus - that needs to know where
| your Tomcat instance is installed, you can provide a variable here such that the variable is
| dereferenced during the build process to configure the cactus plugin.
|
| As noted above, profiles can be activated in a variety of ways. One way - the activeProfiles
| section of this document (settings.xml) - will be discussed later. Another way essentially
| relies on the detection of a system property, either matching a particular value for the property,
| or merely testing its existence. Profiles can also be activated by JDK version prefix, where a
| value of '1.4' might activate a profile when the build is executed on a JDK version of '1.4.2_07'.
| Finally, the list of active profiles can be specified directly from the command line.
|
| NOTE: For profiles defined in the settings.xml, you are restricted to specifying only artifact
| repositories, plugin repositories, and free-form properties to be used as configuration
| variables for plugins in the POM.
|
|-->
<profiles>
<!-- profile
| Specifies a set of introductions to the build process, to be activated using one or more of the
| mechanisms described above. For inheritance purposes, and to activate profiles via <activatedProfiles/>
| or the command line, profiles have to have an ID that is unique.
|
| An encouraged best practice for profile identification is to use a consistent naming convention
| for profiles, such as 'env-dev', 'env-test', 'env-production', 'user-jdcasey', 'user-brett', etc.
| This will make it more intuitive to understand what the set of introduced profiles is attempting
| to accomplish, particularly when you only have a list of profile id's for debug.
|
| This profile example uses the JDK version to trigger activation, and provides a JDK-specific repo.
<profile>
<id>jdk-1.4</id>
<activation>
<jdk>1.4</jdk>
</activation>
<repositories>
<repository>
<id>jdk14</id>
<name>Repository for JDK 1.4 builds</name>
<url>http://www.myhost.com/maven/jdk14</url>
<layout>default</layout>
<snapshotPolicy>always</snapshotPolicy>
</repository>
</repositories>
</profile>
-->
<!--
| Here is another profile, activated by the system property 'target-env' with a value of 'dev',
| which provides a specific path to the Tomcat instance. To use this, your plugin configuration
| might hypothetically look like:
|
| ...
| <plugin>
| <groupId>org.myco.myplugins</groupId>
| <artifactId>myplugin</artifactId>
|
| <configuration>
| <tomcatLocation>${tomcatPath}</tomcatLocation>
| </configuration>
| </plugin>
| ...
|
| NOTE: If you just wanted to inject this configuration whenever someone set 'target-env' to
| anything, you could just leave off the <value/> inside the activation-property.
|
<profile>
<id>env-dev</id>
<activation>
<property>
<name>target-env</name>
<value>dev</value>
</property>
</activation>
<properties>
<tomcatPath>/path/to/tomcat/instance</tomcatPath>
</properties>
</profile>
-->
</profiles>
<!-- activeProfiles
| List of profiles that are active for all builds.
|
<activeProfiles>
<activeProfile>alwaysActiveProfile</activeProfile>
<activeProfile>anotherAlwaysActiveProfile</activeProfile>
</activeProfiles>
-->
</settings>
