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That's all we know. X-Spam_score_int: -1 X-Spam_score: -0.2 X-Spam_bar: / X-Spam_report: (-0.2 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, URIBL_BLOCKED=0.001, URIBL_SBL=1.623, URIBL_SBL_A=0.1 autolearn=_AUTOLEARN X-Spam_action: no action Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: help-guix@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: help-guix Errors-To: help-guix-bounces+larch=yhetil.org@gnu.org Sender: "Help-Guix" X-Scanner: scn0 X-Spam-Score: -0.01 Authentication-Results: aspmx1.migadu.com; dkim=fail (body hash did not verify) header.d=roylemmon-com.20150623.gappssmtp.com header.s=20150623 header.b=SfVwDoxL; dmarc=none; spf=pass (aspmx1.migadu.com: domain of help-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=help-guix-bounces@gnu.org X-Scan-Result: default: False [-0.01 / 13.00]; GENERIC_REPUTATION(0.00)[-0.53994917293081]; DWL_DNSWL_FAIL(0.00)[209.51.188.17:server fail]; R_SPF_ALLOW(-0.20)[+ip4:209.51.188.0/24:c]; IP_REPUTATION_HAM(0.00)[asn: 22989(0.07), country: US(-0.00), ip: 209.51.188.17(-0.54)]; R_DKIM_REJECT(1.00)[roylemmon-com.20150623.gappssmtp.com:s=20150623]; TO_DN_ALL(0.00)[]; MX_GOOD(-0.50)[cached: eggs.gnu.org]; RCPT_COUNT_TWO(0.00)[2]; DKIM_TRACE(0.00)[roylemmon-com.20150623.gappssmtp.com:-]; MAILLIST(-0.20)[mailman]; FORGED_RECIPIENTS_MAILLIST(0.00)[]; RCVD_IN_DNSWL_FAIL(0.00)[209.51.188.17:server fail]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:22989, ipnet:209.51.188.0/24, country:US]; TAGGED_FROM(0.00)[larch=yhetil.org]; FROM_NEQ_ENVFROM(0.00)[roy@roylemmon.com,help-guix-bounces@gnu.org]; ARC_NA(0.00)[]; RCVD_COUNT_FIVE(0.00)[5]; URIBL_BLOCKED(0.00)[ambrevar.xyz:email]; FROM_HAS_DN(0.00)[]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[help-guix@gnu.org]; DMARC_NA(0.00)[roylemmon.com]; HAS_LIST_UNSUB(-0.01)[]; RWL_MAILSPIKE_POSSIBLE(0.00)[209.51.188.17:from]; FORGED_SENDER_MAILLIST(0.00)[] X-TUID: UFSRVpoATbnG Thanks very much Pierre and Guillaume, Perfect. It works now. Clearly I need to read more about java, icedtea, .jar files, .java files, .jnlp files .... But at least I can compile and run such files now. I have a similar question about setting up a python environment but I will ask that in a separate email. Thanks Roy. On Mon, May 11, 2020 at 12:49 PM Pierre Neidhardt wrote: > You need to install icedtea:jdk or openjdk:jdk if you want the developer > tools. > > Cheers! > > -- > Pierre Neidhardt > https://ambrevar.xyz/ > -- ******************************** Roy Lemmon STFC Daresbury Laboratory United Kingdom ********************************