Wrote /root/JavaX-Caches/tmp_210846020/main.java - 81 bytes (written=81, should be 81) ecj -source 1.8 -target 1.8 -nowarn -encoding utf8 -Xdiags:verbose -cp /root/.javax/x30.jar:/root/dexcompiler/android.jar:/root/dexcompiler/support-v4-22.2.1.jar:/root/javafx/javafx.base.jar:/root/javafx/javafx.graphics.jar:/root/javafx/javafx.swing.jar -d /root/JavaX-Caches/tmp_1603541063 /root/JavaX-Caches/tmp_210846020/main.java [Compilation Error]

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main$JavaCompileException: ECJ returned errors. Annotation processing got disabled, since it requires a 1.6 compliant JVM ---------- 1. ERROR in /root/JavaX-Caches/tmp_210846020/main.java (at line 1) static S joinNonNullsWithSpace(S... l) { ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Syntax error on token(s), misplaced construct(s) ---------- 2. ERROR in /root/JavaX-Caches/tmp_210846020/main.java (at line 1) static S joinNonNullsWithSpace(S... l) { ^ Syntax error on token "S", @ expected ---------- 3. ERROR in /root/JavaX-Caches/tmp_210846020/main.java (at line 1) static S joinNonNullsWithSpace(S... l) { ^^^ Syntax error on token "...", . expected ---------- 4. ERROR in /root/JavaX-Caches/tmp_210846020/main.java (at line 2) ret joinWithSpace(notNullOnly(l)); ^^^ Syntax error on token "ret", { expected ---------- 4 problems (4 errors) Options file: /tmp/javax9824490007580882616