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java.lang.NullPointerException at org.apache.taglibs.standard.tlv.JstlBaseTLV.validate(JstlBaseTLV.java:140) at org.apache.taglibs.standard.tlv.JstlFmtTLV.validate(JstlFmtTLV.java:96) at org.apache.jasper.compiler.TagLibraryInfoImpl.validate(TagLibraryInfoImpl.java:913) at org.apache.jasper.compiler.Validator.validateXmlView(Validator.java:1891) at org.apache.jasper.compiler.Validator.validate(Validator.java:1859) at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:210) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:435) at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:608)