I am not using Maven, this is a standalone project where i provide the jars in Reference Libraries The error is thrown when the code is trying to initialize the workbook
workbook = new XSSFWorkbook();
Error :
ERROR StatusLogger Unable to create Lookup for ctx
java.lang.NoClassDefFoundError: org/apache/logging/log4j/util/ServiceLoaderUtil
at org.apache.logging.log4j.core.impl.ThreadContextDataInjector.getServiceProviders(ThreadContextDataInjector.java:77)
at org.apache.logging.log4j.core.impl.ThreadContextDataInjector.<clinit>(ThreadContextDataInjector.java:64)
at org.apache.logging.log4j.core.impl.ThreadContextDataInjector$ForCopyOnWriteThreadContextMap.<init>(ThreadContextDataInjector.java:211)
at org.apache.logging.log4j.core.impl.ContextDataInjectorFactory.createDefaultInjector(ContextDataInjectorFactory.java:94)
at org.apache.logging.log4j.core.impl.ContextDataInjectorFactory.createInjector(ContextDataInjectorFactory.java:71)
at org.apache.logging.log4j.core.lookup.ContextMapLookup.<init>(ContextMapLookup.java:34)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:488)
at org.apache.logging.log4j.core.util.ReflectionUtil.instantiate(ReflectionUtil.java:189)
at org.apache.logging.log4j.core.lookup.Interpolator.<init>(Interpolator.java:81)
at org.apache.logging.log4j.core.lookup.Interpolator.<init>(Interpolator.java:100)
at org.apache.logging.log4j.core.config.AbstractConfiguration.<init>(AbstractConfiguration.java:135)
at org.apache.logging.log4j.core.config.NullConfiguration.<init>(NullConfiguration.java:32)
at org.apache.logging.log4j.core.LoggerContext.<clinit>(LoggerContext.java:74)
at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.createContext(ClassLoaderContextSelector.java:254)
at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.locateContext(ClassLoaderContextSelector.java:218)
at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:136)
at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:123)
at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:117)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:150)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:196)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:599)
at org.apache.poi.ooxml.POIXMLDocumentPart.<clinit>(POIXMLDocumentPart.java:56)
at ExcelHandlers.XMLToExcelWriterMessages.initXls(XMLToExcelWriterMessages.java:165)
at ExcelHandlers.XMLToExcelWriterMessages.getAndReadXml(XMLToExcelWriterMessages.java:56)
at Core.PICheckerMain.main(PICheckerMain.java:133)
Caused by: java.lang.ClassNotFoundException: org.apache.logging.log4j.util.ServiceLoaderUtil
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
... 29 more
Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class org.apache.logging.log4j.core.impl.ThreadContextDataInjector
at org.apache.logging.log4j.core.impl.ThreadContextDataInjector$ForCopyOnWriteThreadContextMap.<init>(ThreadContextDataInjector.java:211)
at org.apache.logging.log4j.core.impl.ContextDataInjectorFactory.createDefaultInjector(ContextDataInjectorFactory.java:94)
at org.apache.logging.log4j.core.impl.ContextDataInjectorFactory.createInjector(ContextDataInjectorFactory.java:71)
at org.apache.logging.log4j.core.impl.ReusableLogEventFactory.<init>(ReusableLogEventFactory.java:42)
at org.apache.logging.log4j.core.config.LoggerConfig.<clinit>(LoggerConfig.java:101)
at org.apache.logging.log4j.core.config.AbstractConfiguration.<init>(AbstractConfiguration.java:138)
at org.apache.logging.log4j.core.config.NullConfiguration.<init>(NullConfiguration.java:32)
at org.apache.logging.log4j.core.LoggerContext.<clinit>(LoggerContext.java:74)
at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.createContext(ClassLoaderContextSelector.java:254)
at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.locateContext(ClassLoaderContextSelector.java:218)
at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:136)
at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:123)
at org.apache.logging.log4j.core.selector.ClassLoaderContextSelector.getContext(ClassLoaderContextSelector.java:117)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:150)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:196)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:599)
at org.apache.poi.ooxml.POIXMLDocumentPart.<clinit>(POIXMLDocumentPart.java:56)
at ExcelHandlers.XMLToExcelWriterMessages.initXls(XMLToExcelWriterMessages.java:165)
at ExcelHandlers.XMLToExcelWriterMessages.getAndReadXml(XMLToExcelWriterMessages.java:56)
at Core.PICheckerMain.main(PICheckerMain.java:133)
Below are the jars that i have added, some are for some other stuff, but POI is the problem
EDIT: Later now i have converted to Maven project and below is the POM file, and error is still same
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>PI</groupId>
<artifactId>PI</artifactId>
<version>0.0.1-SNAPSHOT</version>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>4.1.2</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>4.1.2</version>
</dependency>
<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.9.1</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20220320</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>4.4</version>
</dependency>
</dependencies>
</project>
You could try to use the latest version of apache-poi https://mvnrepository.com/artifact/org.apache.poi/poi/5.2.2 if you are not forced to use a specific version. The latest version of apache-poi does not use log4j anymore, instead log4j-api is used. Link to the latest log4j-api version https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-api/2.18.0. Due to the security vulnerabilities of the old log4j module, it is recommended to switch to log4j-api anyway. Maybe this also resolves your issue.