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Java常见异常及解决方法专题文章列表
maven 工程pom.xml文件错误，提示错误如下
Plugin org.apache.maven.plugins:maven-compiler-plugin:2.3.2 or one of its dependencies could not be resolved
java.net.SocketException: No buffer space available (maximum connections reached): connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
solr在glassfish环境下，出现下面错误：
ERROR org.apache.solr.core.SolrCore
null:org.mon.SolrException:
Error instantiating shardHandlerFactory class [org.apache.ponent.HttpShardHandlerFactory]:
Failure initializing default system SSL context
org.springframework.transaction.TransactionSystemException:
Could not roll back JDBC
nested exception is java.sql.SQLRecoverableException: No more data to read from socket
ERROR org.apache.solr.core.SolrCore org.mon.SolrException:
Error opening new searcher. exceeded limit of maxWarmingSearchers=2, try again later.
at org.apache.solr.core.SolrCore.getSearcher (SolrCore.java:1620)
Indexer: org.apache.hadoop.mapred.InvalidInputException: Input path does not exi
st: file:/C:/cygwin/usr/apache-nutch-1.7/crawl/linkdb/crawl_fetch
junit.framework.AssertionFailedError: Exception in constructor:
(org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [config/applicationContext.xml]: Initializ nested exception is java.lang.reflect.MalformedParameterizedTypeException
org.apache.solr.client.solrj.SolrServerException: Timeout occured while waiting response from server at: http://localhost:8080/solr/
at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:431)
at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:180)
java.lang.Exception: Socket bind failed: [730048] ?????????×???(Э?é/??????/???)????í?????Ρ?
at org.apache.tomcat.util.net.AprEndpoint.init(AprEndpoint.java:577) at org.apache.tomcat.util.net.AprEndpoint.start(AprEndpoint.java:697)
[http-8080-1] ERROR org.apache.solr.core.SolrCore
on.SolrException: ERROR: [doc=] multiple values encountered for non mult
iValued copy field suggestions:
java.lang.NoSuchMethodError: org.slf4j.spi.LocationAwareLogger.log(Lorg/slf4j/MLjava/lang/SILjava/lang/S[Ljava/lang/OLjava/lang/T)V
solr 4.4 首次提交请求报错，再次请求就正常，错误如下：
org.apache.solr.client.solrj.SolrServerException:
Timeout occured while waiting response from server at: http://localhost:8080/solr
http://localhost:8080/solr/browse 页面无法访问。例如在访问该页面的时候出现如下异常：
Caused by: java.lang.ClassNotFoundException: solr.VelocityResponseWriter
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
org.mon.SolrException:org.mon.SolrException: Unable to use updateLog: _version_field must exist in schema, using indexed="true" stored="true" and multiValued="false" (_version_ does not exist)
Failed to load class "org.slf4j.impl.StaticLoggerBinder
java.sql.SQLException: 无效的列类型
oracle.jdbc.driver.OraclePreparedStatement.setNull(OraclePreparedStatement.java:1028)
at oracle.jdbc.driver.OraclePreparedStatement.setObject(OraclePreparedStatement.java:2311) at
Caused by: javax.resource.spi.ResourceAllocationException: Error in allocating a connection. Cause: Connection could not be allocated because: Listener refused the connection with the following error:
ORA-12520, TNS:listener could not find available handler for requested type of server
Caused by: org.xml.sax.SAXParseException: The processing instruction target matching "[xX][mM][lL]" is not allowed.at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
failed on connection exception: java.net.ConnectException: Connection refused: no further information
java.lang.IllegalStateException: Web app root system property already set to different value:
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Copyright 2012- ( Coin163 ) All Rights ReservedGetting Error
AbstractSecurityInterceptor,http-apr-8080-exec-2:244 - Public object - authentication not attempted While Ldap Integration
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Exception in thread http-apr-8080-exec-6 java.lang.OutOfMemoryError: PermGen space 解决!
Exception in thread &http-apr-8080-exec-6& java.lang.OutOfMemoryError: PermGen space 解决!}