I'm following this, but I'm having problems with creating the engine object (as described by the Java section of the code). I have 3 import lines that cant be resolved and I cant find where to get the files. i am still a novice coder so this is appreciated.
See here for the java library and how you can import it
Direct download link for a .zip file
For maven add to pom.xml:
<project>
<dependencies>
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-mapsengine</artifactId>
<version>v1-rev64-1.20.0</version>
</dependency>
</dependencies>
</project>
for gradle:
repositories {
mavenCentral()
}
dependencies {
compile 'com.google.apis:google-api-services-mapsengine:v1-rev64-1.20.0'
}
By the way, Google Maps Engine API will stop working after jan 29th, 2016, so don't waste too much time getting used to it ;-)
Related
I have a simple maven project to do some SIF calls with MDM hub, and adding castor dependencies for this.
Maven dependency added:
org.codehaus.castor
castor-xml
1.4.1
This downloaded the castor-xml-1.4.1.jar file.
Right at the line calling sipClient.process(req) below exception is thrown
Exception in thread "main" java.lang.NoSuchMethodError: org.exolab.castor.xml.Marshaller.getResolver()Lorg/exolab/castor/xml/ClassDescriptorResolver;
at com.siperian.sif.message.CastorUtil.setMappingLoader(CastorUtil.java:470)
at com.siperian.sif.message.CastorUtil.beanToXmlString(CastorUtil.java:358)
at com.siperian.sif.message.CastorUtil.beanToXmlString(CastorUtil.java:323)
at com.siperian.sif.message.CastorUtil.beanToXmlString(CastorUtil.java:309)
at com.siperian.sif.message.CastorUtil.beanToXmlString(CastorUtil.java:295)
at com.siperian.sif.client.HttpSiperianClient._process(HttpSiperianClient.java:117)
at com.siperian.sif.client.SiperianClient.process(SiperianClient.java:179)
I can see the getResolver method and classDescriptorResolver in the jar file in Java Decompiler, Images
classResolverDescriptor
getResolver method
Same exception even for 1.3.2 dependency.
Should I download any extra dependencies.
Thanks
This specific error for 2 reasons:
1- You are missing the jar file that has this method (This might not be the issue you have, as you stated you can see it when looking at the decompiled jar)
2- You have 2 or more jars in your dependencies, and it is actually looking at the jar which does not have the method you need.
How you should approach this is as follows:
Go to your ide, and open your pom.xml file
Open the Dependency Heirarchy view and search for org.codehaus.castor or castor-xml and see how many different versions you have.
If you have more than 1, and some are included as part of another jar, you can use in your pom.xml to remove the versions which you dont want.
If you like command line you can probably do the above, using mvn dependency:tree
Hope this helps you in some way.
-- Edited --
Your code is using 1.3.2 dependency. How? You can download the castor-xml.1.3.2.jar and extract it and look into the Marshaller. You will see the method getResolver() does not take any parameters, and therefore you get NoMethodFound.
´´´
/**
* Returns the ClassDescriptorResolver for use during marshalling
*
* #return the ClassDescriptorResolver
* #see #setResolver
*/
public XMLClassDescriptorResolver getResolver() {
}
´´´
Therefore you need to find out in your dependency hierarchy, will one includes this 1.3.2 jar and exclude this jar from it.
An example of how to do exclude is in pom.xml:
<dependency>
<groupId>sample.group.which.has.castor.in.it</groupId>
<artifactId>artifactor.which.has.castor.in.it</artifactId>
<version>1.0</version>
<scope>compile</scope>
<exclusions>
<exclusion> <!-- declare the exclusion here -->
<groupId>org.codehaus.castor</groupId>
<artifactId>castor-xml</artifactId>
<version>1.3.2</version>
</exclusion>
</exclusions>
</dependency>
<dependency> <!-- add proper dependency also, as it is needed -->
<groupId>org.codehaus.castor</groupId>
<artifactId>castor-xml</artifactId>
<version>1.4.1</version>
</dependency>
I'm struggling with Twitter4j. I am using a Maven project with the following Twitter4j dependency:
<dependency>
<groupId>org.twitter4j</groupId>
<artifactId>twitter4j-core</artifactId>
<version>[4.0,)</version>
</dependency>
However every time I try and declare a StatusListener, I get Cannot resolve symbol 'StatusListener' even though I'm importing import twitter4j.*;.
Anyone know why this might happen when I can use pretty much all other features of Twitter4j?
I needed to add
<dependency>
<groupId>org.twitter4j</groupId>
<artifactId>twitter4j-stream</artifactId>
<version>[4.0,)</version>
</dependency>
As a dependency to my pom.xml. Turns out the Streaming API and all related classes are in a different part of the Twitter4J ecosystem.
As twitter4j lib contains the core, async, example, and a stream part. You should try to include all these but mainly the stream dependency contains the status listener method. I hope it solves your problem.
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>
Summary
When trying XMLConfiguration configuration = new XMLConfiguration("config/config.xml"); with only commons-configuration 1.10 I need to add more depencies (namely commons-collections not newer than 3.2.1) to my maven setup. Why is that so and why doesn't maven simply resolve all needed dependencies?
Details
I am trying to get commons-configuration to work. First I wanted to use the latest version, 2.0-alpha2, which didn't work well at all since I was unable to configure Maven to download the correct ressources - but that is another story.
After I found out that version 1.10 is in fact "one point ten" (not "one point one zero") and thus the latest version of commons-configuration 1 (and covered by the tutorials), I decided to give it a try instead.
For my maven dependencies (integrated in eclipse) I used:
<dependency>
<groupId>commons-configuration</groupId>
<artifactId>commons-configuration</artifactId>
<version>1.10</version>
</dependency>
However, when trying out this example:
package main;
import java.util.Iterator;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.XMLConfiguration;
public class ConfigurationTest {
public static void main(String... args) {
try {
XMLConfiguration configuration =
new XMLConfiguration("config/config.xml");
Iterator<String> iterator = configuration.getKeys();
while (iterator.hasNext()) {
System.out.println(iterator.next());
}
} catch (ConfigurationException e) {
e.printStackTrace();
}
}
}
with the following config.xml:
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<configuration>
<property>value</property>
<nestedproperty>
<arrayvalue>0,1,2,3,4</arrayvalue>
<property>anothervalue</property>
</nestedproperty>
</configuration>
I got the error:
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/collections/CollectionUtils
at org.apache.commons.configuration.XMLConfiguration.constructHierarchy(XMLConfiguration.java:640)
at org.apache.commons.configuration.XMLConfiguration.initProperties(XMLConfiguration.java:596)
at org.apache.commons.configuration.XMLConfiguration.load(XMLConfiguration.java:1009)
at org.apache.commons.configuration.XMLConfiguration.load(XMLConfiguration.java:972)
at org.apache.commons.configuration.XMLConfiguration$XMLFileConfigurationDelegate.load(XMLConfiguration.java:1647)
at org.apache.commons.configuration.AbstractFileConfiguration.load(AbstractFileConfiguration.java:324)
at org.apache.commons.configuration.AbstractFileConfiguration.load(AbstractFileConfiguration.java:261)
at org.apache.commons.configuration.AbstractFileConfiguration.load(AbstractFileConfiguration.java:238)
at org.apache.commons.configuration.AbstractHierarchicalFileConfiguration.load(AbstractHierarchicalFileConfiguration.java:184)
at org.apache.commons.configuration.AbstractHierarchicalFileConfiguration.<init>(AbstractHierarchicalFileConfiguration.java:95)
at org.apache.commons.configuration.XMLConfiguration.<init>(XMLConfiguration.java:261)
at main.ConfigurationTest.main(ConfigurationTest.java:12)
I first hoped they (not me, of course) just screwed up some maven dependencies and since I wouldn't bother which version to use anyway anymore (I didn't get 2.0 to work, remember?) I decided to go down to version 1.9 by replacing the maven dependency with:
<dependency>
<groupId>commons-configuration</groupId>
<artifactId>commons-configuration</artifactId>
<version>1.9</version>
</dependency>
That solved the problem pretty well, the test case is running:
property
nestedproperty.arrayvalue
nestedproperty.property
But when I tried to implement a similar example to the one referenced in Very simple Apache-commons configuration example throws NoClassDefFoundError and its follow-up question I got the exact same error which is referenced there - but the solution, importing org.apache.commons.beanutils.PropertyUtils is not working as I am missing the beanutils. So basically by downgrading I just switched from the error of missing the collections to missing beanutils.
There is a dependency overview where you can see which dependencies are used when you do what. I was a bit suprised to learn that version 1.10 now used other dependencies (namely the CollectionUtils) than 1.9 did in the constructor call. Since there were dependency problems in 1.10 as well as in 1.9 I just sticked to the newer version.
I found the CollectionUtils located in the following artifact (as I was pointed there by its maven repository):
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>4.0</version>
</dependency>
Sadly that one (not obvious to me at first) doesn't define the class CollectionUtils in the package collections, but in the package collections4. It was hinted at this problem on the dependency overview, but they only mentioned possible problems with earlier versions... I appeared to be at a point of not thinking much about it anymore but simply changed the dependency to:
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.2.1</version>
</dependency>
I got everything to work (more or less, but the Exceptions I get now are not anymore depending on missing class definitions) after using these dependencies:
<dependencies>
<dependency>
<groupId>commons-configuration</groupId>
<artifactId>commons-configuration</artifactId>
<version>1.10</version>
</dependency>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.2.1</version>
</dependency>
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.9.2</version>
</dependency>
</dependencies>
Why do I have to add the dependencies myself? I thought the whole point in using maven is to avoid having to do such things and in terms of javadocs and source files it does a pretty good job.
By now I am convinced that the dependencies are not included in the hierarchy by design (is that so?), probably to avoid overhead. However is there a way to either simply get all dependencies at once or even better to get all dependencies I need? And why is it designed this way?
If we analyse commons-configuration's POM we see that the commons-collections dependency is optional:
<dependencies>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.2.1</version>
<optional>true</optional>
</dependency>
...
Furthermore, from the Maven docs:
If a user wants to use functionality related to an optional
dependency, they will have to redeclare that optional dependency in
their own project.
This issue is explained on the Runtime dependencies page of the Commons Configuration website.
Quoting from that page:
A lot of dependencies are declared in the Maven POM. These are all needed during compile time. On runtime however you only need to add the dependencies to your classpath that are required by the parts of the Commons Configuration package you are using. The following table helps you to determine which dependencies you have to include based on the components you intend to use.
The other answers explain why this works from a Maven perspective. This answer is intended to provide a defence, of sorts, to the Commons Configuration folks. They did at least warn you!
In cases where the dependencies are on other Apache Commons components, they've taken the time to test with a variety of versions and have posted information on compatibility at the bottom of that page.
Maven tries to resolve all necessary dependencies for a library you're using in your pom. Well sometimes you have some dependencies which are only necessary for some specific features and you don't want to force the user of your dependency to download it if he doesn't use it. Then you're declaring your dependency as optional. This happened with commons-collections within commons-configuration. See commons-configuration-pom here
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>