reworked showDocument logic * netx/net/sourceforge/jnlp/config/BasicValueValidators.java: added special validator for browser * netx/net/sourceforge/jnlp/config/Defaults.java: used this validator * netx/net/sourceforge/jnlp/config/DeploymentConfiguration.java: declared browser's constants and environment variable * netx/net/sourceforge/jnlp/resources/Messages.properties: removed invalid lines, added new lines * netx/net/sourceforge/jnlp/resources/Messages_cs.properties: removed invalid lines, * netx/net/sourceforge/jnlp/resources/Messages_de.properties: removed invalid lines, * netx/net/sourceforge/jnlp/resources/Messages_pl.properties: removed invalid lines, * netx/net/sourceforge/jnlp/runtime/AppletEnvironment.java: showDocument now works * netx/net/sourceforge/jnlp/runtime/Translator.java: added shortcut method to call call VVPossibleBrowserValues * netx/net/sourceforge/jnlp/runtime/html/browser/LinkingBrowser.java: split creation from stand alone launch * netx/net/sourceforge/jnlp/services/XBasicService.java: fully reworked showDocument. Focus on standard desktop api and customization * tests/reproducers/signed/ShowDocument/resources/ShowDocumentApplet.jnlp: test jnlp for applet's context.showDocument * tests/reproducers/signed/ShowDocument/resources/ShowDocumentMain.jnlp: test jnlp for application's basicService.showDocument * tests/reproducers/signed/ShowDocument/resources/document.txt: document to be shown in test * tests/reproducers/signed/ShowDocument/srcs/ShowDocument.java: body of applet/jnlp-app * tests/reproducers/signed/ShowDocument/testcases/ShowDocumentTest.java: two testcases - one for applet, second for app. Both running on headless.

document appears!
Good.