Bug#892760: antlr3: FTBFS with Java 9

[Emmanuel Bourg]

Package: antlr3
Version: 3.5.2-8
Severity: normal
User: debian-java at lists.debian.org
Usertags: default-java9

antlr3 fails to build with Java 9:

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] ANTLR 3 Master build control POM ................... SUCCESS [  0.570 s]
[INFO] ANTLR 3 Runtime .................................... SUCCESS [  4.100 s]
[INFO] ANTLR 3 Tool ....................................... SUCCESS [  6.755 s]
[INFO] ANTLR 3 Maven plugin ............................... SUCCESS [  1.580 s]
[INFO] ANTLR 3 gUnit ...................................... FAILURE [  1.392 s]
[INFO] ANTLR 3 gUnit Maven plugin ......................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 14.708 s
[INFO] Finished at: 2018-03-12T17:41:21+01:00
[INFO] Final Memory: 12M/42M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:3.0.0:jar (default-cli) on project gunit: MavenReportException: Error while generating Javadoc:
[ERROR] Exit code: 1 - ./antlr3/gunit/src/main/java/org/antlr/gunit/swingui/model/TestSuiteFactory.java:30: error: package org.antlr.gunit.swingui.parsers does not exist
[ERROR] import org.antlr.gunit.swingui.parsers.ANTLRv3Lexer;
[ERROR]                                       ^
[ERROR] ./antlr3/gunit/src/main/java/org/antlr/gunit/swingui/model/TestSuiteFactory.java:31: error: package org.antlr.gunit.swingui.parsers does not exist
[ERROR] import org.antlr.gunit.swingui.parsers.ANTLRv3Parser;
[ERROR]                                       ^
[ERROR] ./antlr3/gunit/src/main/java/org/antlr/gunit/swingui/model/TestSuiteFactory.java:32: error: package org.antlr.gunit.swingui.parsers does not exist
[ERROR] import org.antlr.gunit.swingui.parsers.StGUnitLexer;
[ERROR]                                       ^
[ERROR] ./antlr3/gunit/src/main/java/org/antlr/gunit/swingui/model/TestSuiteFactory.java:33: error: package org.antlr.gunit.swingui.parsers does not exist
[ERROR] import org.antlr.gunit.swingui.parsers.StGUnitParser;
[ERROR]                                       ^
[ERROR]
[ERROR] Command line was: /usr/lib/jvm/java-9-openjdk-amd64/bin/javadoc @options @packages
[ERROR]
[ERROR] Refer to the generated Javadoc files in './antlr3/gunit/target/apidocs' dir.