Logstash pattern matching more than it should
<p>I have a log line (multiline match) that looks like the following:</p>

<pre><code>3574874    14/Jul/2016 20:42:37 +0000  ERROR [http-bio-0.0.0.0-8443-exec-128] error_jsp            _jspService    &gt; could not lock: [com.myCompany.myProject.bean.scheduling.Area#6306]; SQL [/* UPGRADE lock com.myCompany.myProject.bean.scheduling.Area */ select Area_id from Area_ID where Area_id =? and Area_Version =? for update]; nested exception is org.hibernate.exception.LockAcquisitionException: could not lock: [com.myCompany.myProject.bean.scheduling.Area#6306]
org.springframework.dao.CannotAcquireLockException: could not lock: [com.myCompany.myProject.bean.scheduling.MyClass#6306]; SQL [/* UPGRADE lock com.myCompany.myProject.bean.scheduling.MyClass */ select Area_ID from Area where Area =? and Area =? for update]; nested exception is org.hibernate.exception.LockAcquisitionException: could not lock: [com.myCompany.myProject.bean.scheduling.Area#6306]
    at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:639)
    at org.springframework.orm.hibernate3.HibernateExceptionTranslator.convertHibernateAccessException(HibernateExceptionTranslator.java:89)
    at org.springframework.orm.hibernate3.HibernateExceptionTranslator.translateExceptionIfPossible(HibernateExceptionTranslator.java:68)
    at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:58)
    at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:163)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:633)
    at com.myCompany.myProject.dal.hibernate.Impl$$EnhancerBySpringCGLIB$$535be625.lock(&lt;generated&gt;)
    at com.myCompany.myProject.scheduling.Area.AreaClose(MyClass.java:1265)
    at com.myCompany.myProject.scheduling.Area.handleProviderDisconnect(MyClass.java:1190)
    at com.myCompany.myProject.scheduling.Area$$FastClassBySpringCGLIB$$220c3d67.invoke(&lt;generated&gt;)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:700)
</code></pre>

<p>My pattern file lays things out like this:</p>

<pre><code>    # AW Tomcat formatting
    TOMCAT_DATE %{MONTHDAY}[./-]%{MONTH}[./-]%{YEAR}
    TOMCAT_TS %{BASE10NUM}
    #%{BASE10NUM}
    TOMCAT_TIME %{HOUR}:%{MINUTE}(?::%{SECOND})(?![0-9])
    TOMCAT_THREAD \[(.+?)\]
    TOMCAT_CLASS [A-Za-z0-9]+
    TOMCAT_CLASS_METHOD %{NOTSPACE}
    TOMCAT_TIMESTAMP %{TOMCAT_DATE}[\s]+%{TOMCAT_TIME}
    TOMCAT_MESSAGE .+
    TOMCAT_IP %{IP}
    TOMCAT_DATA %{NOTSPACE}

    TOMCAT_LOG (?:%{TOMCAT_TS:log_ts})[\s]+(?:%{TOMCAT_TIMESTAMP:log_timestamp})[\s]+%{INT}[\s]+(?:%{LOGLEVEL:log_level})[\s]+(?:%{TOMCAT_THREAD:thread})[\s]+(?:%{TOMCAT_CLASS:class_name})[\s]$
</code></pre>

<p>When I look at this in logstash it seems like the code for thread is matching a lot more than just the thread... it's matching all the way to [com.myCompany.myProject.bean.scheduling.MyClass#6306]; </p>

<p>When I take JUST the thread and the regex for space after and toss it on regexr or regex101 I can't recreate this using:</p>

<pre><code>\[(.+?)\][\s]+
</code></pre>

<p>Does anyone have insight on why the regex is working everywhere but logstash?   Also, this works on about 99.5% of my incoming tomcat logs as well....</p>