HTTP Status 500 - Invalid value for instrument: 4%2C20

type Exception report

message Invalid value for instrument: 4%2C20

description The server encountered an internal error that prevented it from fulfilling this request.

exception

java.lang.IllegalArgumentException: Invalid value for instrument: 4%2C20
	com.jguitar.web.InstrumentFactory.getBaseInstrument(InstrumentFactory.java:129)
	com.jguitar.web.InstrumentFactory.buildInstrument(InstrumentFactory.java:82)
	com.jguitar.web.InstrumentFactory.buildInstrument(InstrumentFactory.java:70)
	com.jguitar.web.InstrumentFactory.buildInstrument(InstrumentFactory.java:66)
	com.jguitar.web.ChordNamerServlet.doGet(ChordNamerServlet.java:47)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:636)
	com.dontletgo.common.web.ETagHttpServlet.service(ETagHttpServlet.java:73)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	com.dontletgo.common.web.ResponseHeaderFilter.doFilter(ResponseHeaderFilter.java:36)
	com.dontletgo.tomcatrealms.CustomPrincipalFilter.doFilter(CustomPrincipalFilter.java:24)
	com.jguitar.web.JGuitarBrokenImageUrlRedirectFilter.doFilter(JGuitarBrokenImageUrlRedirectFilter.java:26)
	com.jguitar.web.HostRedirectFilter.doFilter(HostRedirectFilter.java:45)
	com.jguitar.web.HttpsRedirectFilter.doFilter(HttpsRedirectFilter.java:56)
	org.apache.catalina.filters.HttpHeaderSecurityFilter.doFilter(HttpHeaderSecurityFilter.java:120)
	org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)

note The full stack trace of the root cause is available in the Apache Tomcat/8.0.32 (Ubuntu) logs.


Apache Tomcat/8.0.32 (Ubuntu)