Man, i follow the steps in order and continuing to have erros.
[INFO] Scanning for projects...
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[INFO] Reactor Build Order:
[INFO]
[INFO] weasis-parent
[INFO] Parent of Core Plug-ins [weasis-core-parent]
[INFO] Weasis Core API [weasis-core-api]
[INFO] Weasis UI API (j2se) [weasis-core-ui]
[INFO] Core Plug-ins [weasis-core]
[INFO] Parent of ImageIO Plug-ins [weasis-imageio-parent]
[INFO] ImageIO Codec [weasis-imageio-codec]
[INFO] ImageIO native Windows x86 codec
[INFO] ImageIO native Linux x86 codec
[INFO] ImageIO native Linux amd64 codec
[INFO] ImageIO Plug-ins [weasis-imageio]
[INFO] JPEG Codec [weasis-image-jni]
[INFO] Parent of Native JPEG Library
[INFO] Native JPEG Codecs [weasis-jpeg-codec]
[INFO] JPEG native Windows x86 codec
[INFO] JPEG native Windows x86-64 codec
[INFO] JPEG native Linux x86 codec
[INFO] JPEG native Linux amd64 codec
[INFO] JPEG native Mac amd64 codec
[INFO] Additional Image Codecs [weasis-codec]
[INFO] Native JPEG Library [weasis-jpeg]
[INFO] Parent of OpenJPEG Library
[INFO] Native OpenJPEG Codec [weasis-openjpeg-codec]
[INFO] openjpeg native Windows x86 codec
[INFO] openjpeg native Windows x86-64 codec
[INFO] openjpeg native Linux x86 codec
[INFO] OpenJPEG Linux amd64 codec
[INFO] openjpeg native Mac amd64 codec
[INFO] OpenJPEG Library [weasis-openjpeg]
[INFO] Parent of Default Plug-ins [weasis-base-parent]
[INFO] Weasis Base UI [weasis-base-ui]
[INFO] Media Explorer [weasis-base-explorer]
[INFO] Image Viewer [weasis-base-viewer2d]
[INFO] Default Plug-ins [weasis-base]
[INFO] Parent of DICOM Plug-ins [weasis-dicom-parent]
[INFO] DICOM Codec [weasis-dicom-codec]
[INFO] DICOM Data Explorer [weasis-dicom-explorer]
[INFO] Media Importer [weasis-acquire-explorer]
[INFO] Tool panel sample [weasis-acquire-editor]
[INFO] Default Plug-ins [weasis-acquire]
[INFO] 2D DICOM Viewer [weasis-dicom-viewer2d]
[INFO] DICOM Structured Report Viewer [weasis-dicom-sr]
[INFO] DICOM AU Player [weasis-dicom-au]
[INFO] weasis-dicom-send
[INFO] weasis-dicom-qr
[INFO] DICOM Plug-ins [weasis-dicom]
[INFO] Weasis Launcher (Felix) [weasis-launcher]
[INFO] weasis-framework
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building weasis-parent 2.5.4-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ weasis-parent ---
[INFO] Installing D:\TI & HACKING\PROJETOS\WEASIS\Weasis-master\Weasis-master\weasis-parent\pom.xml to C:\Users\francoatmega\.m2\repository\org\weasis\weasis-parent\2.5.4-SNAPSHOT\weasis-parent-2.5.4-SNAPSHOT.pom
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Parent of Core Plug-ins [weasis-core-parent] 2.5.4-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ weasis-core-parent ---
[INFO] Installing D:\TI & HACKING\PROJETOS\WEASIS\Weasis-master\Weasis-master\weasis-core\weasis-core-parent\pom.xml to C:\Users\francoatmega\.m2\repository\org\weasis\core\weasis-core-parent\2.5.4-SNAPSHOT\weasis-core-parent-2.5.4-SNAPSHOT.pom
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Weasis Core API [weasis-core-api] 2.5.4-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:3.0.2:resources (default-resources) @ weasis-core-api ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 48 resources
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.6.1:compile (default-compile) @ weasis-core-api ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:3.0.2:testResources (default-testResources) @ weasis-core-api ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory D:\TI & HACKING\PROJETOS\WEASIS\Weasis-master\Weasis-master\weasis-core\weasis-core-api\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.6.1:testCompile (default-testCompile) @ weasis-core-api ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-surefire-plugin:2.19.1:test (default-test) @ weasis-core-api ---
-------------------------------------------------------
T E S T S
-------------------------------------------------------
Running org.weasis.core.api.media.data.TagWTest
Tests run: 9, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.046 sec - in org.weasis.core.api.media.data.TagWTest
Running org.weasis.core.api.service.WPropertiesTest
19.07.2017 17:30:33.794 *ERROR* [main] org.weasis.core.api.service.WProperties Cannot parse color null into int
19.07.2017 17:30:33.816 *ERROR* [main] org.weasis.core.api.service.WProperties Cannot parse color sf into int
Tests run: 10, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 5.766 sec - in org.weasis.core.api.service.WPropertiesTest
Results :
Tests run: 19, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] --- maven-bundle-plugin:3.2.0:bundle (default-bundle) @ weasis-core-api ---
[INFO]
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ weasis-core-api ---
[INFO] Installing D:\TI & HACKING\PROJETOS\WEASIS\Weasis-master\Weasis-master\weasis-core\weasis-core-api\target\weasis-core-api-2.5.4-SNAPSHOT.jar to C:\Users\francoatmega\.m2\repository\org\weasis\core\weasis-core-api\2.5.4-SNAPSHOT\weasis-core-api-2.5.4-SNAPSHOT.jar
[INFO] Installing D:\TI & HACKING\PROJETOS\WEASIS\Weasis-master\Weasis-master\weasis-core\weasis-core-api\pom.xml to C:\Users\francoatmega\.m2\repository\org\weasis\core\weasis-core-api\2.5.4-SNAPSHOT\weasis-core-api-2.5.4-SNAPSHOT.pom
[INFO]
[INFO] --- maven-bundle-plugin:3.2.0:install (default-install) @ weasis-core-api ---
[INFO] Writing OBR metadata
[INFO] Installing org/weasis/core/weasis-core-api/2.5.4-SNAPSHOT/weasis-core-api-2.5.4-SNAPSHOT.jar
[INFO] Writing OBR metadata
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Weasis UI API (j2se) [weasis-core-ui] 2.5.4-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:3.0.2:resources (default-resources) @ weasis-core-ui ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 104 resources
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.6.1:compile (default-compile) @ weasis-core-ui ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 149 source files to D:\TI & HACKING\PROJETOS\WEASIS\Weasis-master\Weasis-master\weasis-core\weasis-core-ui\target\classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] weasis-parent ...................................... SUCCESS [ 2.120 s]
[INFO] Parent of Core Plug-ins [weasis-core-parent] ....... SUCCESS [ 0.148 s]
[INFO] Weasis Core API [weasis-core-api] .................. SUCCESS [ 41.023 s]
[INFO] Weasis UI API (j2se) [weasis-core-ui] .............. FAILURE [ 1.537 s]
[INFO] Core Plug-ins [weasis-core] ........................ SKIPPED
[INFO] Parent of ImageIO Plug-ins [weasis-imageio-parent] . SKIPPED
[INFO] ImageIO Codec [weasis-imageio-codec] ............... SKIPPED
[INFO] ImageIO native Windows x86 codec ................... SKIPPED
[INFO] ImageIO native Linux x86 codec ..................... SKIPPED
[INFO] ImageIO native Linux amd64 codec ................... SKIPPED
[INFO] ImageIO Plug-ins [weasis-imageio] .................. SKIPPED
[INFO] JPEG Codec [weasis-image-jni] ...................... SKIPPED
[INFO] Parent of Native JPEG Library ...................... SKIPPED
[INFO] Native JPEG Codecs [weasis-jpeg-codec] ............. SKIPPED
[INFO] JPEG native Windows x86 codec ...................... SKIPPED
[INFO] JPEG native Windows x86-64 codec ................... SKIPPED
[INFO] JPEG native Linux x86 codec ........................ SKIPPED
[INFO] JPEG native Linux amd64 codec ...................... SKIPPED
[INFO] JPEG native Mac amd64 codec ........................ SKIPPED
[INFO] Additional Image Codecs [weasis-codec] ............. SKIPPED
[INFO] Native JPEG Library [weasis-jpeg] .................. SKIPPED
[INFO] Parent of OpenJPEG Library ......................... SKIPPED
[INFO] Native OpenJPEG Codec [weasis-openjpeg-codec] ...... SKIPPED
[INFO] openjpeg native Windows x86 codec .................. SKIPPED
[INFO] openjpeg native Windows x86-64 codec ............... SKIPPED
[INFO] openjpeg native Linux x86 codec .................... SKIPPED
[INFO] OpenJPEG Linux amd64 codec ......................... SKIPPED
[INFO] openjpeg native Mac amd64 codec .................... SKIPPED
[INFO] OpenJPEG Library [weasis-openjpeg] ................. SKIPPED
[INFO] Parent of Default Plug-ins [weasis-base-parent] .... SKIPPED
[INFO] Weasis Base UI [weasis-base-ui] .................... SKIPPED
[INFO] Media Explorer [weasis-base-explorer] .............. SKIPPED
[INFO] Image Viewer [weasis-base-viewer2d] ................ SKIPPED
[INFO] Default Plug-ins [weasis-base] ..................... SKIPPED
[INFO] Parent of DICOM Plug-ins [weasis-dicom-parent] ..... SKIPPED
[INFO] DICOM Codec [weasis-dicom-codec] ................... SKIPPED
[INFO] DICOM Data Explorer [weasis-dicom-explorer] ........ SKIPPED
[INFO] Media Importer [weasis-acquire-explorer] ........... SKIPPED
[INFO] Tool panel sample [weasis-acquire-editor] .......... SKIPPED
[INFO] Default Plug-ins [weasis-acquire] .................. SKIPPED
[INFO] 2D DICOM Viewer [weasis-dicom-viewer2d] ............ SKIPPED
[INFO] DICOM Structured Report Viewer [weasis-dicom-sr] ... SKIPPED
[INFO] DICOM AU Player [weasis-dicom-au] .................. SKIPPED
[INFO] weasis-dicom-send .................................. SKIPPED
[INFO] weasis-dicom-qr .................................... SKIPPED
[INFO] DICOM Plug-ins [weasis-dicom] ...................... SKIPPED
[INFO] Weasis Launcher (Felix) [weasis-launcher] .......... SKIPPED
[INFO] weasis-framework ................................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 53.899 s
[INFO] Finished at: 2017-07-19T17:30:51-03:00
[INFO] Final Memory: 22M/211M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.6.1:compile (default-compile) on project weasis-core-ui: Compilation failure
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn <goals> -rf :weasis-core-ui