Warning while compiling with OpenJDK 7

[Henning Gerhardt]

While compiling with OpenJDK 7 the following warning appears:

compile:
    [javac] Compiling 234 source files to /home/gerhardt/bzr/goobi-production/build/WEB-INF/classes
    [javac]
    [javac] WARNING
    [javac]
    [javac] The -source switch defaults to 1.7 in JDK 1.7.
    [javac] If you specify -target 1.5 you now must also specify -source 1.5.
    [javac] Ant will implicitly add -source 1.5 for you. Please change your build file.
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 1.5
    [javac] Note: Some input files use or override a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] Note: Some input files use unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 1 warning

BUILD SUCCESSFUL