问题
This is a question that has been asked before, but unfortunately no solution seems to work for me. I am facing this exception (with abridged stack trace):
java.lang.NoSuchMethodError: org.slf4j.spi.LocationAwareLogger.log(Lorg/slf4j/Marker;Ljava/lang/String;ILjava/lang/String;[Ljava/lang/Object;Ljava/lang/Throwable;)V
at org.apache.commons.logging.impl.SLF4JLocationAwareLog.debug(SLF4JLocationAwareLog.java:133)
at org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager$1.getConnection(ThreadSafeClientConnManager.java:221)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:401)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
This happens when compiling using a command line Maven and also when deploying to Tomcat. It works fine inside IntelliJ IDEA.
Usually I would expect this to be caused by multiple versions of the SLF4J library being in use. But the Maven dependency tree shows all slf4j libraries in a single version:
..$ mvn dependency:tree | grep slf4j
[INFO] +- org.slf4j:slf4j-simple:jar:1.6.4:compile
[INFO] | \- org.slf4j:slf4j-api:jar:1.6.4:compile
[INFO] +- org.slf4j:slf4j-api:jar:1.6.4:compile
[INFO] +- org.slf4j:jcl-over-slf4j:jar:1.6.4:compile
[INFO] +- org.slf4j:slf4j-simple:jar:1.6.4:compile
I even ensured that there is no other JAR in ~/.m2/repository
There are no references to commons-logging libraries either (I excluded them all as confirmed by the dependency tree.
How can I resolve this issue? I'm running out of ideas.
EDIT: as requested here the full dependencies, first the parent POM:
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>${org.hibernate.validator.version}</version>
<exclusions>
<!-- Exclude SLF4j to avoid version conflicts (we have 1.6.2, this drags in 1.6.1) -->
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator-annotation-processor</artifactId>
<version>${org.hibernate.validator.version}</version>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.0.0.GA</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework.version}</version>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-core</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>${org.slf4j.backend}</artifactId>
<version>${org.slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>2.2.4</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.1.2</version>
</dependency>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time-jsptags</artifactId>
<version>1.0.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.0-801.jdbc4</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.0.1</version>
</dependency>
</dependencies>
</dependencyManagement>
And then the module that fails:
<dependencies>
// client specific dependencies skipped //
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>10.0.1</version>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-core</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
</dependency>
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2.2</version>
</dependency>
<!-- Logging -->
<dependency>
<groupId>net.sf.opencsv</groupId>
<artifactId>opencsv</artifactId>
<version>2.0</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${org.slf4j.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>${org.slf4j.backend}</artifactId>
<version>${org.slf4j.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.16</version>
</dependency>
<!-- Joda Time -->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
</dependency>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time-jsptags</artifactId>
<scope>runtime</scope>
</dependency>
<!-- Servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>com.google.visualization</groupId>
<artifactId>visualization-datasource</artifactId>
<version>1.0.2</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.0.2</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.0</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.1</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.2.2</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.7</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.7</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<version>3.7</version>
</dependency>
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<scope>test</scope>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
</dependencies>
These are the properties set on the parent:
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<org.hibernate.validator.version>4.2.0.Final</org.hibernate.validator.version>
<org.slf4j.backend>slf4j-simple</org.slf4j.backend>
<org.slf4j.version>1.6.4</org.slf4j.version>
<org.springframework.version>3.0.5.RELEASE</org.springframework.version>
</properties>
Given my recent experiments it doesn't seem to be an issue relating to the project files, though. I tried to 'hg bisect' the problem, but going back weeks I could not find a version that works. Some of these are running in production systems, so it is not likely to be a code change that causes this problem.
回答1:
The javadocs for NoSuchMethodError say,
Normally, this error is caught by the compiler; this error can only occur at run time if the definition of a class has incompatibly changed.
So this is probably being caused by incompatible versions of slf4j being loaded. Rather than looking at your classpath and guessing where classes are loaded, find where your class is loaded as described here.
Print out where org.slf4j.spi.LocationAwareLogger
, org.apache.commons.logging.impl.SLF4JLocationAwareLog
and org.slf4j.Marker
are being loaded from.
回答2:
One Solution.
Verify on eclipse directory: configuration\org.eclipse.equinox.simpleconfigurator\bundles.info
slf4j no more one
回答3:
do
mvn clean dependency:tree -DskipTests;
remove all the dependencies of "org.slf4j" except one (highest one") as
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.6</version>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-jdk14</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
</exclusion>
</exclusions>
</dependency>
回答4:
We were facing the similar problem and it turned out we had 2 incompatible versions of slf4j jars in the classpath. The class path had the following 2 incompatible versions. After removing the lower versions from the classpath, the problem was fixed.
slf4j-api-1.6.1.jar
slf4j-log4j12-1.6.1.jar
slf4j-api-1.5.11.jar
slf4j-log4j12-1.5.11.jar
回答5:
I had the same error message, but the solution was different for me. I had to remove to following dependency from the maven pom:
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.6.1</version>
</dependency>
After that the error vanishes and everything worked for me.
回答6:
I had quartz scheduler in my pom file, which included slf4j, so I excluded it:
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</exclusion>
and worked!
回答7:
Solved !!!
I was having dependency on another project which was using JavaDoc
plugin.
JavaDoc
plugin internally uses Maven-core
and Maven-core-2.2.1
uses jcl-over-slf4j: 1.5.6
.
Maven-core
is a parent level jar.
Now, due to this JCL
jar, i was facing this issue.
Hence I removed it from the lib
folder of weblogic
(or whatever server you might be using).
And ALAS !! The problem was resolved.
Note 1:- You can also use Maven's <exclusion>
tag to remove this dependency from the JavaDoc
(or any other plugin) to resolve this issue.
Note 2:- Use the Dependency Hierarchy
tab in POM to see if any such old SLF4J
jars are present. And remove rest and keep only one version.
Hope it helps ..
回答8:
This usually happens when you have dependencies that both use the same transitive dependency. This means that 2 of your dependencies (or your app, and a transitive dependency) are both using SLF4J internally with different versions. But your app can only use a single version of the class at the same time so it has to choose (don't know the rules here... random?)
To solve the problem, you usually need to do a mvn dependency:tree
to see which are using different versions of SLF4J.
Adding this dependency solved the issue for me
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.25</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.5</version>
</dependency>
来源:https://stackoverflow.com/questions/8252597/slf4j-nosuchmethoderror-on-locationawarelogger