有谁知道我的maven构建发生了什么？我收到了很多重复的警告.
[WARNING] We have a duplicate org/apache/commons/logging/impl/LogFactoryImpl$1.class in /home/shengjie/.m2/repository/commons-logging/commons-logging-api/1.0.4/commons-logging-api-1.0.4.jar
[WARNING] We have a duplicate org/apache/commons/logging/impl/LogFactoryImpl.class in /home/shengjie/.m2/repository/commons-logging/commons-logging-api/1.0.4/commons-logging-api-1.0.4.jar
[WARNING] We have a duplicate org/apache/commons/logging/impl/NoOpLog.class in /home/shengjie/.m2/repository/commons-logging/commons-logging-api/1.0.4/commons-logging-api-1.0.4.jar
[WARNING] We have a duplicate org/apache/commons/logging/impl/SimpleLog$1.class in /home/shengjie/.m2/repository/commons-logging/commons-logging-api/1.0.4/commons-logging-api-1.0.4.jar
[WARNING] We have a duplicate org/apache/commons/logging/impl/SimpleLog.class in /home/shengjie/.m2/repository/commons-logging/commons-logging-api/1.0.4/commons-logging-api-1.0.4.jar
[WARNING] We have a duplicate org/apache/commons/logging/impl/Jdk14Logger.class in /home/shengjie/.m2/repository/commons-logging/commons-logging-api/1.0.4/commons-logging-api-1.0.4.jar
我查看了我当地的m2 repo,我在commons-logging-api jar,LogFactoryImpl.class和LogFactoryImpl $ 1.class中有两个类.与警告中提到的所有类相同.
有一点需要提一下,我在我的pom.xml中使用了shade插件.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>1.4</version>
<configuration>
<createDependencyReducedPom>true</createDependencyReducedPom>
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers> …我无法弄清楚为什么会出现这个错误.我尝试清理冗余的库等等.
我尝试这样做时收到错误:
mongo = new Mongo(host, port);
有趣的是,我可以运行我从IDE(IntelliJ)制作的任何单元测试,但是当我尝试通过Tomcat运行它时,我得到了这个:
Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [com.
sfatandrei.db.MongoManager]: Constructor threw exception; nested exception is java.lang.IncompatibleCla
ssChangeError: Implementing class
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:162)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInst
antiationStrategy.java:110)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(Constructo
rResolver.java:280)
... 82 more
Caused by: java.lang.IncompatibleClassChangeError: Implementing class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2889)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1170)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1678)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1556)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2889)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1170)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1678)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1556)
at com.mongodb.MongoOptions.reset(MongoOptions.java:47)
at com.mongodb.MongoOptions.<init>(MongoOptions.java:29)
at com.mongodb.Mongo.<init>(Mongo.java:148) …我正在处理一个小应用程序,我正在尝试使用Hibernate Annotations来映射我的实体.当我遇到这个例外时,我想测试一切是否正常:
Exception in thread "main" java.lang.ExceptionInInitializerError
at fr.cc2i.intervention.dao.main.Main$HibernateUtil.<clinit>(Main.java:48)
at fr.cc2i.intervention.dao.main.Main.test(Main.java:21)
at fr.cc2i.intervention.dao.main.Main.main(Main.java:32)
Caused by: java.lang.IncompatibleClassChangeError: Implementing class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at fr.cc2i.intervention.dao.main.Main$HibernateUtil.<clinit>(Main.java:44)
... 2 more
有人可以解释一下这个例外吗？这是我第一次看到它.这是我的应用程序的主要内容:
package fr.cc2i.intervention.dao.main;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import fr.cc2i.intervention.dao.beans.Client;
import fr.cc2i.intervention.dao.beans.Contrat;
public class Main {
public static void test(){
Client c = new Client();
c.setCode("123343");
c.setAdresse("fkhdhdmh");
c.setNom("dgsfhgsdfgs"); …使用SQLiteDatabase作为Closeable时出现此错误
我有一个示例项目来重新创建它:
https://github.com/blundell/SQLDatabaseError
使用扩展SQLiteOpenHelper的类:
public class DatabaseHelper extends SQLiteOpenHelper {
....
public void openAndCloseDatabase() {
SQLiteDatabase database = getWritableDatabase();
close(database);
}
private void close(Closeable database) {
try {
if (database != null) {
database.close();
}
} catch (Exception e) {
Log.e("Error", "Oh no!", e);
}
}
}
堆栈跟踪:
12-14 12:23:43.719: E/AndroidRuntime(5179): FATAL EXCEPTION: main
12-14 12:23:43.719: E/AndroidRuntime(5179): java.lang.IncompatibleClassChangeError: interface not implemented
12-14 12:23:43.719: E/AndroidRuntime(5179): at com.blundell.sqldatabasecursorerror.DatabaseHelper.close(DatabaseHelper.java:35)
12-14 12:23:43.719: E/AndroidRuntime(5179): at com.blundell.sqldatabasecursorerror.DatabaseHelper.openAndCloseDatabase(DatabaseHelper.java:29)
12-14 12:23:43.719: E/AndroidRuntime(5179): …我们有一个我们在Tomcat 8中运行的Web应用程序,最近我们观察到我们团队中的一些开发人员构建的工件(.war文件)抛出了一个NoClassDefFoundError,而其他人构建的相同代码按预期运行.
来自logs/localhost.2018-05-11.log:
org.jboss.resteasy.spi.UnhandledException: java.lang.NoClassDefFoundError: Could not initialize class org.geotools.referencing.datum.DefaultEllipsoid
...
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.geotools.referencing.datum.DefaultEllipsoid
at org.geotools.referencing.GeodeticCalculator.<init>(GeodeticCalculator.java:277)
...
这有时(但不总是)伴随(前面):
org.jboss.resteasy.spi.UnhandledException: java.lang.IncompatibleClassChangeError: Implementing class
...
检查war文件,工作和损坏的工件的内容看起来是相同的,有一个值得注意的例外,jar文件的"目录排序" WEB-INF/lib是不同的.
在爆炸的war文件上执行以下过程并重新启动Tomcat似乎消除了异常:
$ # jars in "bad" order
$ ls -U WEB-INF/lib
x.jar
b.jar
y.jar
a.jar
c.jar
z.jar
$ cp -p WEB-INF/lib/* /tmp/lib/
$ rm -r WEB-INF/lib
$ mv /tmp/lib WEB-INF/lib
$ # jars in "good" order (appears to be alphabetical after a 'cp' on my …从 android 市场，我得到了以下崩溃报告。我在测试我的应用程序时没有发现这一点。事故发生在PasswordActivity课堂上。我正在发送堆栈跟踪和代码。谁能告诉我崩溃发生在哪里以及为什么会发生？
堆栈跟踪
java.lang.IncompatibleClassChangeError: interface not implemented
at in.plackal.lovecyclesfree.PasswordActivity.onCreate(PasswordActivity.java)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
at android.app.ActivityThread.access$2300(ActivityThread.java:125)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:4627)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:636)
at dalvik.system.NativeStart.main(Native Method)
我的代码
public class PasswordActivity extends Activity Implements Utilities { //私有变量 private EditText m_passwrdEditText;
private TextView m_passwrdErrorText;
private Resources m_res;
@Override
public void onCreate(Bundle savedInstanceState) {
//Setup the activity
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
if (dm.widthPixels == …我在使用ART模式运行的4.4.2模拟器时遇到了神秘的崩溃.该应用程序适用于Android 5和4.4.2/Dalvik.任何帮助将不胜感激.
04-17 08:25:24.126 16404-16404/com.my.package.name E/AndroidRuntime? FATAL EXCEPTION: main
Process: com.my.package.name, PID: 16404
java.lang.IncompatibleClassChangeError: Class 'java.lang.reflect.ArtMethod' does not implement interface 'java.lang.Runnable' in call to 'void java.lang.Runnable.run()' (declaration of 'java.lang.reflect.ArtMethod' appears in /system/framework/core-libart.jar)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
我是Spring的新手,我需要在JDK7上使用Eclipse成功运行一个项目.该项目以前在JDK6上运行.
我有所有源文件和原始项目所属的jar.但是当我尝试运行它时,我得到以下异常:
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [C:\Users\e\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\DMControl\WEB-INF\classes\com\...\...\...\MyClass.class]; nested exception is java.lang.IncompatibleClassChangeError: org/springframework/core/type/classreading/AnnotationMetadataReadingVisitor
我唯一的线索是,我第一次尝试运行这个,我得到一个错误,说我没有
org.springframework.core.io.support.SpringFactoriesLoader.
我查看了我的spring-core-3.1.2.RELEASE.jar,确实没有SpringFactoriesLoader.检查当前版本,我发现缺少的类确实在spring-core-3.2.2.RELEASE.jar中.
所以我将弹簧罐更换为最新版本.但是现在我在这个问题的标题中得到了例外.
任何的想法？
完整的堆栈跟踪:
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [C:\Users\e\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\FTAdControl\WEB-INF\classes\com\fashiontraffic\adcontrol\health\restwebservices\HealthWSImpl.class]; nested exception is java.lang.IncompatibleClassChangeError: org/springframework/core/type/classreading/AnnotationMetadataReadingVisitor
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:281)
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:242)
at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse(ComponentScanBeanDefinitionParser.java:84)
at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73)
at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1438)
at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1428)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:185)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:139)
at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:108)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:493)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:209)
at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180)
at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125)
at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94)
at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130)
at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:537)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:451)
at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:631) …这是我第一次在stackoverflow中发布一个问题,我需要编写一个创建excel文件的java存储过程,并返回一个包含文件数据的blob(以字节为单位).
我的pl/sql函数采用以下形式
function test_create_excel(i_username IN varchar2) return BLOB
AS LANGUAGE JAVA NAME 'NTO.Excel.ExcelFunctions.PushToExcel( java.lang.String ) return java.sql.Blob';
我的Java方法如下
public static java.sql.Blob TestPushToExcel(String username) throws IOException, SQLException{
//create excel file, read content to byte array and set to a blob
}
我的问题是我找不到任何方法来创建java.sql.Blob的实例,以便我可以使用blob.setBinaryStream(..)方法来编写文件数据字节数组.
我尝试使用SerialBlob实现,但它导致以下oracle错误
ORA-00932:不一致的数据类型:预期返回值是用户定义的Java类的实例,可转换为Oracle类型,获得无法转换的对象
有没有人遇到过这个问题,如果有的话,你可以分享一下你是如何度过这个问题的.
先感谢您.
编辑JAVA
public static oracle.sql.BLOB getBlob(byte[] data) throws SQLException, IOException{
oracle.jdbc.OracleConnection conn = (oracle.jdbc.OracleConnection)new OracleDriver().defaultConnection();
oracle.sql.BLOB retBlob = oracle.sql.BLOB.createTemporary(conn, true, oracle.sql.BLOB.DURATION_SESSION);
java.io.OutputStream outStr = retBlob.setBinaryStream(0);
outStr.write(data);
outStr.flush();
return retBlob;
}
public static ExcelFileStore PushToExcel(String …我为Hive JDBC编写了这个小程序.最初它正在执行正常,但当我试图突然运行时,我遇到了错误.
import java.io.FileWriter;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
public class SampleHiveProgram
{
String lyear="";
String lquarter="";
String driverName = "org.apache.hadoop.hive.jdbc.HiveDriver";
public static void main(String[] args)
{
SampleHiveProgram s=new SampleHiveProgram();
s.startHiveThriftServer();
s.quarterTable();
}
public void startHiveThriftServer()
{
try
{
String cmd = "/home/hadoop/sqoop-1.3.0-cdh3u1/bin/StartHiveThriftServer.sh"; // this is the command to execute in the Unix shell
// create a process for the shell
ProcessBuilder pb = new ProcessBuilder("bash", …我有一个简单的单元测试静态方法并在模拟器上运行它们.(目标是在云CI上运行,因此我在模拟器上进行测试.)
Gradle 2.2.1仿真器Android 5.0
我在控制台上使用这些步骤.
的build.gradle
dependencies {
...
androidTestCompile('com.jakewharton.espresso:espresso:1.1-r3') {
exclude group: 'com.squareup.dagger'
exclude group: 'com.squareup.dagger:dagger:1.2.1'
}
}
android {
compileSdkVersion 21
buildToolsVersion "21.1"
defaultConfig {
minSdkVersion 16
targetSdkVersion 21
testInstrumentationRunner "com.google.android.apps.common.testing.testrunner.GoogleInstrumentationTestRunner"
}
sourceSets {
androidTest.setRoot('src/androidTest')
}
}
错误日志是
Tests on test(AVD) - 5.0 failed: Instrumentation run failed due to 'java.lang.IncompatibleClassChangeError'
com.android.builder.testing.ConnectedDevice > hasTests[test(AVD) - 5.0] FAILED …我试图实现一个调度程序来安排 3 个作业，但在第一个作业实现中，我只收到不兼容的类更改错误。
错误已上线，
JobDetail jobA = JobBuilder.newJob(JobA.class)
.withIdentity(jobKeyA).build();
有什么帮助吗？
完整的代码如下..
import org.quartz.CronScheduleBuilder;
import org.quartz.JobBuilder;
import org.quartz.JobDetail;
import org.quartz.JobKey;
import org.quartz.Scheduler;
import org.quartz.Trigger;
import org.quartz.TriggerBuilder;
import org.quartz.impl.StdSchedulerFactory;
public class Scheduler1 {
public static void main( String[] args ) throws Exception
{
JobKey jobKeyA = new JobKey("jobA", "group1");
JobDetail jobA = JobBuilder.newJob(JobA.class)
.withIdentity(jobKeyA).build();
JobKey jobKeyB = new JobKey("jobB", "group1");
JobDetail jobB = JobBuilder.newJob(JobB.class)
.withIdentity(jobKeyB).build();
JobKey jobKeyC = new JobKey("jobC", "group1");
JobDetail jobC = JobBuilder.newJob(JobC.class)
.withIdentity(jobKeyC).build();
Trigger trigger1 = TriggerBuilder
.newTrigger()
.withIdentity("dummyTriggerName1", …