import com.amazonaws.services.s3 cannot be resolved - java

I want to use AWS S3 buckets with my Java 17 / Maven 3.8.5 app but when I add this to the pom.xml file
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk</artifactId>
<version>1.12.177</version>
</dependency>
I get a bunch of errors like these:
Failed to read artifact descriptor for com.amazonaws:aws-java-sdk-iotevents:jar:1.12.177
although when I add -core like this:
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-core</artifactId>
<version>1.12.177</version>
</dependency>
the errors go away in my pom.xml file but I dont think this is what I want.
What I want is to be able to import com.amazonaws.services.s3.AmazonS3; like this
import com.amazonaws.services.s3.AmazonS3;
import org.springframework.context.annotation.Configuration;
#Configuration
public class AmazonConfig {
public AmazonS3 s3() {
AWSCredentials awsCredentials = new BasicAWSCredentials("", "");
}
}
but I keep getting this error
The import com.amazonaws.services.s3 cannot be resolved
Im really new to Java so I'm not sure if the problem is from my Maven configuration or something else.
Thanks.

you may need to do a mvn install or mvn package, this way, you will download the dependency.

First of all check if the dependencies are pulled or not in the external dependencies section in the IDE. If its not there see if maven is configured properly.
What ide are you using?
If its eclipse force a maven update on the project. If it’s Intellij, invalidate caches from the file menu. Close the ide. Open the root directory of you project in file explorer and Delete any .preferences or .setting or any other unnecessary file or folder present on the source folder reated by the ide and after clearing all that open up IDE and see if that resolves the issue.
Also for s3 you’ll need this dependency
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-s3</artifactId></dependency>

Really not sure what was wrong but restarting a new project worked.

Related

The type com.google.protobuf.GeneratedMessageV3$Builder cannot be resolved. It is indirectly referenced from required .class files

I have been doing my project and all the sudden eclipse started to give this error saying
The type com.google.protobuf.GeneratedMessageV3$Builder cannot be resolved.
It is indirectly referenced from required .class files where we declare the package. I have tried adding com.google.protobuf-2.4.0.jar to build path but it did not work. Please help and here's the screenshot.
com.mysql.cj.x.protobuf.MysqlxSql.StmtExecute is not on the classpath so remove this import
If you are expecting Protobuf generated files to be available, then ensure that you have added the Protobuf library to your project.
Gradle example:
implementation group: 'com.google.protobuf', name: 'protobuf-java', version: googleProtobufVersion
Maven example:
<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-java</artifactId>
<version>${googleProtobufVersion}</version>
</dependency>
Not sure if this helps at such a later date. But i also faced something similar.
I found that I imported this by mistake
import com.mysql.cj.x.protobuf.MysqlxDatatypes.Array;
After removing this line, it works fine.
In your case you need to remove the import
com.mysql.cj.x.protobuf.MysqlxSql.StmtExecute
Replace it with the relevant import.
This is due to the missing dependency of gRPC protobuf. Add this dependency to your pom.xml and this should solve your problem.
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf</artifactId>
<version>1.16.1</version>
</dependency>
Lastly, do maven -> project update

maven can not import "pinyin4j.jar"

want to translate the Chinese to pinyin。So I want to use the rack(pinyin4j.jar).But the maven dependency tree do not contain "pinyin4j".
I have try to use zhe command "mvn clean、mvn compile 、mvn install 、mvn reimport"
I have try to delete it and add it again.
import net.sourceforge.pinyin4j.PinyinHelper;
this does not work.
Try following steps, It is working fine in my system:
Go to the location of your project.
Example: D:\Project\workspace\com.test.pinyin4j>
Try mvn clean install.
Update project and it should work fine.
You can check below attached images. It got successfully imported.
Note: Don't forget to add pinyin4j dependency in POX file.
<dependencies>
<!-- https://mvnrepository.com/artifact/com.belerweb/pinyin4j -->
<dependency>
<groupId>com.belerweb</groupId>
<artifactId>pinyin4j</artifactId>
<version>2.5.0</version>
</dependency>
</dependencies>

ClassNotFoundException in com.amazonaws.demos.polly.PollyDemo

I'm new to Maven and the AWS SDK. So I installed both and updated my Java SDK. Double checked all required path and classpath settings.
The AWS Polly manual (page 119 in the pdf) presents a demo code example, to test Polly.
Being in this for the very first time, I tried this example (pom.xml and PollyDemo.java). Calling Maven as written in the manual, I receive the ClassNotFoundException for PollyDemo (classpath to com.amazonaws.demos.polly package has been set).
With over 10 years Java experience I feel like a newbie.
Please help
you need to add aws-java-sdk-polly dependency into your pom.xml
file and update the project, you can find dependency below:
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-polly</artifactId>
<version>1.11.77</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.googlecode.soundlibs/jlayer -->
<dependency>
<groupId>com.googlecode.soundlibs</groupId>
<artifactId>jlayer</artifactId>
<version>1.0.1-1</version>
</dependency>
for more you can refer below link :
http://docs.aws.amazon.com/de_de/polly/latest/dg/examples-java.html
http://docs.aws.amazon.com/polly/latest/dg/examples-java.html
The example can be run if: AWS credentials are created and setted (1), a new project is started by creating an empty directory (e.g. 'my-app'),
opening a shell in 'my-app' and running the command 'mvn archetype:generate -DgroupId=com.amazonaws.demos.polly -DartifactId=polly-java-demo -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false' (2), and finally replace both the existing 'pom.xml' and hello world java file with the ones in the example (3).

package com.amazonaws.services.lambda.runtime does not exist in AWS java sdk 1.10.2

I am trying the Java code example in the Getting Started (Authoring AWS Lambda Code in Java) page, but am stuck as com.amazonaws.services.lambda.runtime pacakge seems to be missing
Here is the sample code:
package example;
import com.amazonaws.services.lambda.runtime.Context; //package does not exist error
import com.amazonaws.services.lambda.runtime.LambdaLogger; // package does not exist error
import com.amazonaws.services.s3.AmazonS3; // import works (not needed, I've put them in for testing import)
import com.amazonaws.services.s3.model.S3Object; // import works (not needed, I've put them in for testing import)
public class Hello {
public String myHandler(int myCount, Context context) {
LambdaLogger logger = context.getLogger();
logger.log("received : " + myCount);
return String.valueOf(myCount);
}
}
I encounter the same error both in Netbeans and through command line (specifying the aws sdk thorugh -cp argument) from the first two imports of the code:
package com.amazonaws.services.lambda.runtime does not exist
Note importing other packages from the SDK works fine, as per third and fourth imports from the above code (the s3 imports which i put in just to test).
I am using version 1.10.2 (aws-java-sdk-1.10.2.zip) of the AWS Java SDK, downloaded from http://sdk-for-java.amazonwebservices.com/latest/aws-java-sdk.zip
Any directions/suggestions would be much appreciated. Thanks!
Both of those classes are contained in the aws-lambda-java-core jar, which is distributed separately from the AWS SDK. You can download it from maven central at the link above if you're not using maven/gradle/some other build system that can natively pull from maven central.
Add AWS plugins within eclipse from market place, make aws lambda project.
Use below three dependencies to make fat jar.
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-lambda</artifactId>
<version>1.11.76</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-lambda-java-core</artifactId>
<version>1.1.0</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-lambda-java-events</artifactId>
<version>1.3.0</version>
</dependency>
After some searching I found com.amazonaws.services.lambda.runtime.Context in http://mvnrepository.com/artifact/com.amazonaws/aws-lambda-java-core/1.1.0 . (I prefer this site to search.maven.org. mvnrepository.com gets right to the heart of my problem by supplying the sbt build line.)
The class is not in aws-java-sdk-lambda , nor is it in aws-java-sdk-core, or aws-java-sdk .
For those who are using sbt:
libraryDependencies ++= Seq(
"com.amazonaws" % "aws-java-sdk" % "1.11.241",
"com.amazonaws" % "aws-lambda-java-core" % "1.2.0"
)
Check the links for the lastest version:
https://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk
https://mvnrepository.com/artifact/com.amazonaws/aws-lambda-java-core
Arthur,
You trying use java code sample from AWS Lambda for another product Amazon AWS SDK For Java.
Please read AWS Lambda welcome-page and maybe after steps for (create account and others) you can to download package with your classes (Context, LambdaLogger)
For me, the solution for intellij was delete all .iml files and invalidate cache/restart.
I found com.amazonaws.services.lambda.runtime.LambdaLogger in: https://mvnrepository.com/artifact/com.amazonaws/aws-lambda-java-log4j/1.0.0
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-lambda-java-log4j</artifactId>
<version>1.0.0</version>
</dependency>

NoSuchMethod error getting a gdata service

I get the following error:
Exception in thread "main" java.lang.NoSuchMethodError: com.google.common.collect.ImmutableSet.of([Ljava/lang/Object;)Lcom/google/common/collect/ImmutableSet;
at com.google.gdata.wireformats.AltFormat$Builder.setAcceptableTypes(AltFormat.java:399)
at com.google.gdata.wireformats.AltFormat$Builder.setAcceptableXmlTypes(AltFormat.java:387)
at com.google.gdata.wireformats.AltFormat.<clinit>(AltFormat.java:49)
at com.google.gdata.client.Service.<clinit>(Service.java:558)
at testproject.TestProject.run(TestProject.java:22)
at testproject.TestProject.main(TestProject.java:31)
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)
This comes from the following code:
package testproject;
import com.google.gdata.client.youtube.YouTubeService;
import com.google.gdata.util.*;
import java.util.logging.*;
public class TestProject {
public static void main(String[] args) {
try {
YouTubeService service = new YouTubeService("Test", "developerKey");
service.setUserCredentials("root#gmail.com", "pa$$word");
} catch (AuthenticationException ex) {
Logger.getLogger(TestProject.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
At first, I included every library in http://code.google.com/p/gdata-java-client/downloads/list and also imported much more than I needed to.
I've since removed the libraries I deemed unnecessary (thanks thinksteep). So the libraries I'm currently including are the following libraries:
mail.jar
activation.jar
ant.jar
gdata-core-1.0.jar
gdata-media-1.0.jar
guava-11.0.1.jar
gdata-youtube-2.0.jar
gdata-youtube-met-2.0.jar
(There are probably a few libraries there which are not necessary... But I'm at my whit's end...)
I'm just trying to test getting a YouTube service so I can get things going on this project, but no dice. Oh, and I've also included this library: http://code.google.com/p/guava-libraries because before I was getting a NoClassDefFound error and including that library seemed to solve it. Thank you in advance for the help!
Oh, and I also followed every step exactly (or at least I think so) in the gdata getting started guide. My test build was successful by the end... Thanks again!
Adding more than required may cause issue too. java.lang.NoSuchMethodError error typically happens in case where runtime couldn't find required method with exact signature. Possible causes are:
1) There might be mulitple jars with same code, which may cause wrong class get loaded.
2) Incompatable version of jar, the jar you have in classpath might be older version/newer version.
Make sure none of those cases happening.
Issue with latest version of gdata still referencing older guava methods
Check Out
http://code.google.com/p/gdata-java-client/issues/detail?can=2&start=0&num=100&q=&colspec=ID%20Type%20Status%20Priority%20Milestone%20Owner%20Summary&groupby=&sort=&id=344
Solution
I switched to guava-r07.jar located at
http://code.google.com/p/guava-libraries/downloads/detail?name=guava-r07.zip&can=4&q=
This got me past
ContactsService service = new ContactsService("");
Jar's in use:
Default Eclipse plugin jar's
gdata-base-1.0.jar
gdata-client-1.0.jar
gdata-contacts-3.0.jar
gdata-core-1.0.jar
gdata-media-1.0.jar
guava-r07.jar
Apache (servlet-api.jar)
JavaMail (mail.jar)
JavaBeans Activation Framework (activation.jar)
I dont know if its still relevant but i had the same exception
there is a problem with guava 11.02.jar (currently latest version)
when using guava-10.0.1 (can be found here) everything went well.
The Required library jars are as follows.
gdata-client-1.0.jar
gdata-core-1.0.jar
gdata-media-1.0.jar
gdata-youtube-2.0.jar
guava-11.0.2.jar
java-mail-1.4.4.jar
I am using the above mentioned library . Please make use of it ; because the ultimate aim is to get the YouTubeService Object. Check below for the code snippet.
package com.baba.test;
/*
* Author : Somanath Nanda
*/
import java.net.MalformedURLException;
import java.net.URL;
import com.google.gdata.client.youtube.YouTubeQuery;
import com.google.gdata.client.youtube.YouTubeService;
public class Test {
private static final String CLIENT_ID = "XXXXXXXX.XXXXX.XXX.XXX";
private static final String DEVELOPER_KEY = "*********************************88";
public static void main(String[] args) throws MalformedURLException {
YouTubeService service = new YouTubeService(CLIENT_ID,DEVELOPER_KEY);
System.out.println("Service : "+service);
}
If you're using a build tool, such as Maven, then you could simply do something similar to the following example from a portion of the dependencies section in my pom.xml:
<!-- The mail dependency is required BEFORE the javaee-api dependency.
The gdata dependency (YouTube API) requires the mail dependency. -->
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.gdata</groupId>
<artifactId>core</artifactId>
<version>1.47.1</version>
</dependency>
I have added googlecollection-exp.jar into my build path then the previous execption was gone.
Pay attention to this jar gdata-core-1.0.jar I have the same problem, and I realized I have problem with this jar gdata-core-1.0.jar, and I found from website the same jar gdata-core-1.0.jar, but the content is different. After I replaced the new gdata-core-1.0.jar, problem solved.
So it's tricky that the jar with the same name but their contents are not the same. you thought you have the jar, actually it's not the right one
It could be that some of your jars would be having dependency on google/guava jars and if they're not in build path or if multiple of them are there it might raise inconsistency hence the error. A quick solution could be add latest version of guava to your pom
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>24.0-jre</version>
</dependency>
Now check in dependency hierarchy if any of your Jar apart from guava is referring to any other older jar of guava/google-collections. If so then exclude it, something like this
<exclusions>
<exclusion>
<groupId>com.google.collections</groupId>
<artifactId>google-collections</artifactId>
</exclusion>
</exclusions>

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