Apply same parser & lexer fixes from before

java/preprocessor/src/main/antlr/JavaLexer.g4

@@ -134,6 +134,8 @@ CHAR_LITERAL: '\'' (~['\\\r\n] | EscapeSequence) '\'';
 
 STRING_LITERAL: '"' (~["\\\r\n] | EscapeSequence)* '"';
 
+MULTI_STRING_LIT:   '"""' (~[\\] | EscapeSequence)*? '"""';
+
 TEXT_BLOCK: '"""' [ \t]* [\r\n] (. | EscapeSequence)*? '"""';
 
 NULL_LITERAL: 'null';

java/preprocessor/src/main/antlr/JavaParser.g4

@@ -314,11 +314,24 @@ qualifiedName
     : identifier ('.' identifier)*
     ;
 
+baseStringLiteral
+    : STRING_LITERAL
+    ;
+
+multilineStringLiteral
+    : MULTI_STRING_LIT
+    ;
+
+stringLiteral
+    : baseStringLiteral
+    | multilineStringLiteral
+    ;
+
 literal
     : integerLiteral
     | floatLiteral
     | CHAR_LITERAL
-    | STRING_LITERAL
+    | stringLiteral
     | BOOL_LITERAL
     | NULL_LITERAL
     | TEXT_BLOCK // Java17

java/preprocessor/src/main/antlr/processing/mode/java/preproc/Processing.g4

@@ -27,7 +27,7 @@ processingSketch
     : staticProcessingSketch
     | javaProcessingSketch
     | activeProcessingSketch
-    | warnMixedModes
+//    | warnMixedModes
     ;
 
 // java mode, is a compilation unit
@@ -111,7 +111,7 @@ literal
     : integerLiteral
     | floatLiteral
     | CHAR_LITERAL
-    | STRING_LITERAL
+    | stringLiteral
     | BOOL_LITERAL
     | NULL_LITERAL
     | hexColorLiteral
@@ -144,13 +144,4 @@ LINE_COMMENT
 
 CHAR_LITERAL
     : '\'' (~['\\\r\n] | EscapeSequence)* '\''  // A bit nasty but let JDT tackle invalid chars
-		;
-
-// Parser Rules
-multilineStringLiteral
-    : MULTILINE_STRING_START .*? MULTILINE_STRING_END
-    ;
-
-// Lexer Rules
-MULTILINE_STRING_START: '"""' '\r'? '\n';
-MULTILINE_STRING_END: '"""';
+		;

java/preprocessor/src/main/java/processing/app/Preferences.java

@@ -58,7 +58,7 @@ public class Preferences {
         }
     }
     static public boolean getBoolean(String attribute) {
-        String value = get(attribute); //, null);
+        String value = get(attribute);
         return Boolean.parseBoolean(value);
     }
     static public int getInteger(String attribute /*, int defaultValue*/) {