Dúvida! Note: Recompile with -Xlint:unchecked for details

Front-end
#1

Aiii gente!!!

Eu to perdida nesse erro ai… :shock:
eu não consigo executar meu projeto no
NetBeans :cry:

C:\Documents and Settings\Adm\Meus documentos\NetBeansProjects\Teste\build\generated\src\org\apache\jsp\exibeGraficos_jsp.java:7: class exibegraficos_jsp is public, should be declared in a file named exibegraficos_jsp.java
public final class exibegraficos_jsp extends org.apache.jasper.runtime.HttpJspBase
Note: C:\Documents and Settings\Adm\Meus documentos\NetBeansProjects\Teste\build\generated\src\org\apache\jsp\exibeGraficos_jsp.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error
C:\Documents and Settings\Adm\Meus documentos\NetBeansProjects\Teste\nbproject\build-impl.xml:465: The following error occurred while executing this line:
C:\Documents and Settings\Adm\Meus documentos\NetBeansProjects\Teste\nbproject\build-impl.xml:221: Compile failed; see the compiler error output for details.

o que pode ser??!!

#2