Develop Reference

Access Elastic Search Using Its Java Api's

I am trying to follow the Documentation of Elastic Search to get and post data from it using its java Api's. But i am constantly getting error.
This is the code i have tried as of now.
Settings settings = Settings.builder().put("twitter", "tweet").build();
TransportClient client = new PreBuiltTransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("host1"), 9300))
.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("host2"), 9300));
GetResponse response = client.prepareGet("twitter", "tweet", "1").get();
The stack trace
Exception in thread "main" java.lang.NoClassDefFoundError:
com/google/common/collect/ImmutableSortedMap
at com.c1x.entity.Test.main(Test.java:20)
Caused by: java.lang.ClassNotFoundException: com.google.common.collect.ImmutableSortedMap
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 1 more
Please Help , i am new to Elastic search , the data is present in elastic search as i can see it when i use dev tools in kibana
after adding google commons
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/lucene/util/SetOnce
at org.elasticsearch.common.settings.Settings$Builder.<init>(Settings.java:676)
at org.elasticsearch.common.settings.Settings$Builder.<clinit>(Settings.java:671)
at org.elasticsearch.common.settings.Settings.<clinit>(Settings.java:84)
at com.c1x.entity.Test.main(Test.java:20)
Caused by: java.lang.ClassNotFoundException: org.apache.lucene.util.SetOnce
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 4 more
After adding lucene jar
Exception in thread "main" java.lang.NoSuchMethodError: com.google.common.collect.ImmutableSet.of(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;[Ljava/lang/Object;)Lcom/google/common/collect/ImmutableSet;
at org.elasticsearch.common.Strings.<clinit>(Strings.java:459)
at org.elasticsearch.common.settings.Settings.<init>(Settings.java:90)
at org.elasticsearch.common.settings.Settings$Builder.build(Settings.java:1215)
at com.c1x.entity.Test.main(Test.java:21)
Another error
Exception in thread "main" java.lang.VerifyError: class org.elasticsearch.transport.Netty3Plugin overrides final method onModule.(Lorg/elasticsearch/common/network/NetworkModule;)V
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.elasticsearch.transport.client.PreBuiltTransportClient.<clinit>(PreBuiltTransportClient.java:84)
at com.c1x.entity.Test.main(Test.java:22)

You miss the google-collections.jar in your classpath. Add it and the error will go away.
If you are using maven as dependency Management tool, add the follwing lines to your pom.xml:
<dependency>
<groupId>com.google.collections</groupId>
<artifactId>google-collections</artifactId>
<version>1.0</version>
</dependency>
Next jar is missing add lucene-core-<version>.jar
maven dependency is:
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-core</artifactId>
<version>6.5.1</version>
</dependency>

javax.xml.bind.JAXBException [java.lang.ClassNotFoundException: com.sun.xml.bind.v2.ContextFactory] in jdk1.5

I am getting error :
javax.xml.bind.JAXBException
- with linked exception: [java.lang.ClassNotFoundException: com.sun.xml.bind.v2.ContextFactory] at
javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:195) at
javax.xml.bind.ContextFinder.find(ContextFinder.java:381) at
javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:574) at
javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:522) at
com.zhongway.jtjk.cutoverinfo.CutOverInforequest.getCutOVERinfoxml(CutOverInforequest.java:29)
at
com.zhongway.jtjk.cutoverinfo.CutOverInforequest.main(CutOverInforequest.java:247)
Caused by: java.lang.ClassNotFoundException:
com.sun.xml.bind.v2.ContextFactory at
java.net.URLClassLoader$1.run(URLClassLoader.java:200) at
java.security.AccessController.doPrivileged(Native Method) at
java.net.URLClassLoader.findClass(URLClassLoader.java:188) at
java.lang.ClassLoader.loadClass(ClassLoader.java:306) at
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268) at
java.lang.ClassLoader.loadClass(ClassLoader.java:251) at
javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:191) ...
5 more
I have added following jars:
javax.xml.bind-2.0.jar jaxb-2.0-m13-1.jar jaxb-api-2.0-ea3.jar
Can someone help me out what wrong with this code.

Add Below dependecy in your pom.xml file.
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.2.11</version>
</dependency>

File | Settings | Build, Execution, Deployment | Build Tools | Gradle
Change gradle jdk

#EnableEncryptableProperties is not working

I am new to Spring-boot and trying to encrypt password in application.properties file using jasypt library. I used #EnableEncryptableProperties with #SpringBootApplication and getting error. Don't know how to get its resolution. Following is the dependency used in my pom.xml. I am using JDK 7 to build this Application. If you know any other framework to encrypt password in properties it will be appreciated.
<dependency>
<groupId>com.github.ulisesbocchio</groupId>
<artifactId>jasypt-spring-boot</artifactId>
<version>1.2</version>
</dependency>
My main class is :
#SpringBootApplication
#EnableSwagger2
#EnableJSONDoc
#EnableAsync
#EnableEncryptableProperties
public class App extends SpringBootServletInitializer{
...
}
And i am getting following exception:
java.lang.UnsupportedClassVersionError: com/ulisesbocchio/jasyptspringboot/annotation/EnableEncryptableProperties : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:274)
at sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:114)
at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:125)
at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49)
at sun.reflect.annotation.AnnotationParser.parseSig(AnnotationParser.java:432)
at sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:238)
at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:117)
at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:70)
at java.lang.Class.initAnnotationsIfNecessary(Class.java:3271)
at java.lang.Class.getDeclaredAnnotations(Class.java:3248)

The messages tells you that the class-file which should be loaded was compiled for java 8. So you need a JDK8 to use the "com.github.ulisesbocchio/jasypt-spring-boot" library.
You can have a look at spring cloud. It supports encrypted properties and only needs java 7 (afaik)

Getting "java.lang.NoClassDefFoundError: org/apache/http/nio/reactor/IOReactorException"

I'm trying to use a Mashape api, I have added the following libraries (jars) unirest, httpasyncclient, httpclient, httpmime, org.json, commons-longging, httpcore to my project.
I'm trying to run...
HttpResponse<JsonNode> response = Unirest.post("https://life-left.p.mashape.com/time-left")
.header("X-Mashape-Key", "1NZITOdDGqmshKRAEdDbX0tp0WV2p1RR5SSjsnQYQIVwrANkhC")
.header("Content-Type", "application/x-www-form-urlencoded")
.field("birth", "22 April 1977")
.field("gender", "female")
.asJson();
But I get this exception...
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/http/nio/reactor/IOReactorException
at com.mashape.unirest.http.HttpClientHelper.prepareRequest(HttpClientHelper.java:154)
at com.mashape.unirest.http.HttpClientHelper.request(HttpClientHelper.java:131)
at com.mashape.unirest.request.BaseRequest.asJson(BaseRequest.java:68)
at test.Test.main(Test.java:24)
Caused by: java.lang.ClassNotFoundException: org.apache.http.nio.reactor.IOReactorException
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
I've tried googling around but I can't find out what is wrong.
Any help would be appreciated.

I had same problem but resolved after adding following dependency in my project pom.xml file
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore-nio</artifactId>
<version>4.4.3</version>
</dependency>

Spring and Quartz error

I am trying the example from following site
http://www.mkyong.com/spring/spring-quartz-scheduler-example/
I have added junit to fix build error but getting the following error...any help is appreciated
Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/context/support/ClassPathXmlApplicationContext
at com.mkyong.common.App.main(App.java:7)
Caused by: java.lang.ClassNotFoundException: org.springframework.context.support.ClassPathXmlApplicationContext
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

Add spring-context-support.jar and spring-context.jar in your application path and then run application